Patent Publication Number: US-2015084816-A1

Title: Electronic device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2013-200281, filed Sep. 26, 2013, the entire contents of which are incorporated herein by reference. 
     FIELD 
     Embodiments described herein relate generally to an electronic device. 
     BACKGROUND 
     Conventionally, there is known an electronic device comprising an antenna provided inside a housing at an inner side of a wall and a shield member located at the side opposite the wall of the antenna. 
     It is preferable that such electronic device have a configuration capable of suppressing lowering of communication performance of the antenna, as an example. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       A general architecture that implements the various features of the invention will now be described with reference to the drawings. The drawings and the associated descriptions are provided to illustrate embodiments of the invention and not to limit the scope of the invention. 
         FIG. 1  is an exemplary perspective view illustrating an example of an electronic device when viewed from the front side according to a first embodiment; 
         FIG. 2  is an exemplary cross-sectional view taken along line II-II of  FIG. 1 , in the embodiment; 
         FIG. 3  is an exemplary plan view illustrating a portion of one example of the electronic device in the vicinity of a first electromagnetic shield member in the embodiment; 
         FIG. 4  is an exemplary plan view illustrating a state in which the first electromagnetic shield member illustrated in  FIG. 3  has been detached, in the embodiment; 
         FIG. 5  is an exemplary cross-sectional view illustrating one example of an electronic device according to a second embodiment; 
         FIG. 6  is an exemplary cross-sectional view illustrating one example of an electronic device according to a third embodiment; and 
         FIG. 7  is an exemplary cross-sectional view illustrating one example of an electronic device according to a fourth embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     In general, according to one embodiment, an electronic device comprises a housing, an antenna, a first shield member, and a first spacer. The housing comprises a first wall. The first wall comprises an electromagnetic wave-transmissive material. The antenna is configured to overlap, in part, with the electromagnetic wave-transmissive material. The first shield member is located at a side of the antenna opposite the electromagnetic wave-transmissive material. The first spacer is located between the antenna and the first shield member. 
     Hereinafter, described are embodiments with reference to the drawings. It is to be noted that the exemplary embodiments below comprise the same or similar constituent components. Hereinafter, common reference numerals denote the same or similar constituent components and overlapped description thereof is omitted. 
     Although the following embodiments describe the case where an electronic device is configured as a clamshell-type (notebook-type, folding-type) personal computer, the electronic device according to the embodiments is not limited thereto. Examples of the electronic device according to the embodiments may include tablet-type (slate-type) or desktop personal computers, smartphones, phablets, mobile phones, personal digital assistants (PDAs), electronic book terminals, video image display devices, television receivers, videophones, game machines, video image display controllers, information storage devices, and various electronic devices comprising an antenna and a circuit board. 
     First Embodiment 
     In the embodiment, as illustrated in  FIG. 1 , an electronic device  1  comprises a first housing  3  and a second housing  2 , for example. To be specific, the first housing  3  supports a display device  4  (display module, display, panel). The first housing  3  is provided with a transparent touch panel  5  (touch sensor, input operation module, input receiver, input module) that overlaps the display device  4 . A user and the like can visually check a video image (image) that is displayed on a display screen  4 a of the display device  4  though the touch panel  5 . Furthermore, the second housing  2  accommodates a substrate  6  (circuit board, control substrate, main substrate, electric component, first electric component). The second housing  2  is provided with a keyboard  7  (input operation module, first input operation module, input receiver, input module), a pointing device  8 a (input operation module, second input operation module, input receiver, input module), click buttons  8 b (input operation modules, input receivers, input modules), and the like. 
     The first housing  3  and the second housing  2  are connected to each other by hinge mechanisms  20  (hinges, connectors, connecting portions, rotational movement support portions, connecting mechanisms, connector mechanisms, rotational movement support mechanisms) in a rotationally movable manner. The first housing  3  and the second housing  2  are connected to each other in the rotationally movable manner between at least an opened state illustrated in  FIG. 1  and a folded state (not illustrated) by the hinge mechanisms  20 . In the embodiment, the hinge mechanisms  20  connect the first housing  3  and the second housing  2  in a rotationally movable manner about a rotating shaft Ax, as an example. 
     The display screen  4   a  of the display device  4  can be checked visually through an opening  3   r  provided on a face  3   a  (anterior face, upper face, front face, face portion) of the first housing  3 . The keyboard  7 , the pointing device  8   a,  the click buttons  8   b,  and the like are exposed to a face  2   a  (anterior face, upper face, front face, face portion) of the second housing  2 . In the folded state, the face  3   a  of the first housing  3  and the face  2   a  of the second housing  2  are superimposed, so that the display screen  4   a , the keyboard  7 , the pointing device  8   a,  the click buttons  8   b,  and the like are hidden by the first housing  3  and the second housing  2 . On the other hand, in the opened state, the face  3   a  of the first housing  3  and the face  2   a  of the second housing  2  are exposed, so that the display screen  4   a , the keyboard  7 , the pointing device  8   a , the click buttons  8   b,  and the like can be used (can be checked visually or can be operated). 
     As illustrated in  FIG. 1 , the first housing  3  is configured to have a square shape (in the embodiment, rectangular shape, as an example) when seen from the front side and the rear side, as an example. The first housing  3  is configured to have a flattened rectangular parallelepiped shape that is thin in the front-rear direction. The first housing  3  comprises the face  3   a  and a face  3   b  (back face, lower face, rear face, face portion) at the side opposite the face  3   a.  Both the face  3   a  and the face  3   b  extend (are enlarged) in the direction intersecting with (in the embodiment, direction orthogonal to, as an example) the thickness direction of the first housing  3 . The face  3   a  and the face  3   b  are substantially parallel with each other. Furthermore, as illustrated in  FIG. 1 , the first housing  3  comprises four ends  3   c  to  3   f  (sides, edges) and four corners  3   g  to  3   j  (sharp portions, bent portions, ends) when seen from the front side. The ends  3   c  and  3   e  are examples of long sides. The ends  3   d  and  3   f  are examples of short sides. 
     The first housing  3  comprises a wall  3   k  (plate, frame, anterior wall, front wall, ceiling wall) with the face  3   a  and a wall  3   m  (plate, rear wall, back wall, bottom wall) with the face  3   b.  The walls  3   k  and  3   m  have square shapes (in the embodiment, rectangular shapes, as an example). Furthermore, the first housing  3  comprises four walls  3   n  (plates, side walls, end walls, standing walls, connecting portions) with faces  3   p  (side faces, peripheral faces) connecting the wall  3   k  and the wall  3   m.  The wall  3   k  is provided with the square-shaped opening  3   r,  as an example. That is to say, the wall  3   k  has a square shape and a frame form. 
     Furthermore, the first housing  3  can be configured by combining a plurality of components (divided members). In the embodiment, the first housing  3  comprises a first housing member  31  (front member, mask, mask portion, cover, front cover, cover portion, first region) with at least the wall  3   k  and a second housing member  32  (rear member, base, base portion, bottom, bottom portion, cover, rear cover, cover portion, second region) with at least the wall  3   m.  The walls  3   n  are comprised by at least any one of the first housing member  31  and the second housing member  32  (for example, second housing member  32 ). Furthermore, the first housing  3  can be made of a metal material, a synthetic resin material, or the like. 
     The faces  3   a,    3   b,  and  3   p  of the first housing  3  can be provided with a connector, an operation module, a camera module  10  (camera, image capturing device), and the like. The connector can be formed as a connector for a power supply cable, a universal serial bus (USB) connector, a card connector, or a connector of an earphone or a microphone, for example. The operation module can be formed as a press button, a press switch, a slide switch, a pointing device, or a dial, for example. It is to be noted that the camera module  10  is exposed through an opening  3   s  provided on the wall  3   k  of the first housing  3 . 
     As illustrated in  FIG. 1 , the display screen  4   a  of the display device  4  that is located at the face  3   a  side is exposed to the front side (outer side) of the first housing  3  through the opening  3   r.  The user and the like can visually check the display screen  4   a  through the opening  3   r  from the front side. The display device  4  is configured to have a square shape (in the embodiment, rectangular shape, as an example) when seen from the front side. The display device  4  is configured to have a flattened rectangular parallelepiped shape that is thin in the front-rear direction. For example, the display device  4  is a liquid crystal display (LCD) or an organic electroluminescent display (OELD). 
     The touch panel  5  is provided at the posterior side (front side, wall  3   k  side) of the display device  4 . The touch panel  5  is configured to have a square shape that is transparent and relatively thin and covers the display screen  4   a . An operator (user and the like) performs an operation on the touch panel  5  with his (her) hand or finger, a component (for example, stylus, not illustrated), or the like so as to execute input processing. Examples of the operation to be performed by the operator include touching, pressing, sliding, or moving his (her) hand or finger, the stylus, or the like in the vicinity of the touch panel  5 . Light emitted from the display screen  4   a  of the display device  4  passes through the touch panel  5  so as to travel to the front side (outer side) of the first housing  3  through the opening  3   r  of the wall  3   k.    
     As illustrated in  FIG. 1 , the second housing  2  is configured to have a square shape (in the embodiment, rectangular shape, as an example) when seen from the front side and the rear side, as an example. The second housing  2  is configured to have a flattened rectangular parallelepiped shape that is thin in the front-rear direction. The second housing  2  comprises the face  2   a  and a face  2   b  (back face, lower face, rear face, face portion) at the side opposite the face  2   a.  Both the face  2   a  and the face  2   b  extend (are enlarged) in the direction intersecting with (in the embodiment, direction orthogonal to, as an example) the thickness direction (Z direction, see  FIG. 2 ) of the second housing  2 . The face  2   a  and the face  2   b  are substantially parallel with each other. Furthermore, the second housing  2  comprises four ends  2   c  to  2   f  (sides, edges) and four corners  2   g  to  2   j  (sharp portions, bent portions, ends) when the face  2   a  is seen from the front side. The ends  2   c  and  2   e  are examples of long sides. The ends  2   d  and  2   f  are examples of short sides. 
     The second housing  2  comprises a wall  2   k  (plate, frame, anterior wall, front wall, ceiling wall, first wall) with the face  2   a  and a wall  2   m  (plate, rear wall, back wall, bottom wall) with the face  2   b.  The walls  2   k  and  2   m  have square shapes (in the embodiment, rectangular shapes, as an example). Furthermore, the second housing  2  comprises four walls  2   n  (plates, side walls, end walls, standing walls, connecting portions) with faces  2   p  (sides, peripheral faces) connecting the wall  2   k  and the wall  2   m.  The wall  2   k  is provided with a square-shaped opening  2   r,  as an example. That is to say, the wall  2   k  has a square shape and a frame form. As illustrated in  FIG. 1 , when the second housing  2  is placed on a placement surface (flat surface), the wall  2   k  is located at the side opposite the placement surface. 
     As illustrated in  FIG. 2 , the wall  2   k  comprises a face  2   x  (inner face, inner side, face portion), a first portion A 1 , and a second portion A 2 . The face  2   x  corresponds to a face of the wall  2   k  at the side opposite the face  2   a.  The face  2   x  is provided in parallel with the face  2   a.  The first portion A 1  corresponds to a portion (region) configured so as to transmit electromagnetic waves. The second portion A 2  corresponds to a portion (region) configured so as to shield the electromagnetic waves. To be specific, in the embodiment, as an example, (the wall  2   k  of) the second housing  2  is made of a material (for example, synthetic resin material) having electromagnetic wave transmissivity. In addition, a film-like (or foil-like, thin plate-like) shield member  18  (second shield member, electromagnetic shield member) is provided on the face  2   x  that is a face of the wall  2   k  located inside the housing. The shield member  18  is configured as a separate body from the wall  2   k  along the wall  2   k  and covers the face  2   x  partially. The shield member  18  comprises a conductor portion  28  (second conductor, ground conductor). To be specific, the shield member  18  can be configured as a metal member (for example, sputtering layer) having conductivity. The first portion A 1  corresponds to a portion (region) on which the wall  2   k  and the shield member  18  do not overlap with each other when viewed in the thickness direction (Z direction), that is, a portion (region) on which the shield member  18  is not provided. On the other hand, the second portion A 2  correspond to a portion (region) on which the wall  2   k  and the shield member  18  overlap each other when viewed in the thickness direction (Z direction), that is, a portion (region) located to be deviated from the first portion A 1 . 
     As illustrated in  FIG. 1 , the second housing  2  can be configured by combining a plurality of components (divided members). In the embodiment, the second housing  2  comprises a first housing member  21  (front member, mask, mask portion, cover, front cover, cover portion, first region) with at least the wall  2   k  and a second housing member  22  (rear member, base, base portion, bottom, bottom portion, cover, rear cover, cover portion, second region) with at least the wall  2   m.  The walls  2   n  are comprised by at least any one of the first housing member  21  and the second housing member  22  (for example, second housing member  22 ). 
     Furthermore, in the embodiment, an operation face  7   a  (face, upper face) of the keyboard  7  is exposed to the front side (outer side) of the second housing  2  through the opening  2   r,  as an example. On the face  2   a,  the keyboard  7  is located to be closer to the end  2   e  side, and the pointing device  8   a  and the click buttons  8   b  are located to be closer to the end  2   c  side opposite the end  2   e . The end  2   e  is located at the back side in the depth direction (direction along the ends  2   d  and  2   f ) and the end  2   c  is located at the front side. Palm rests  30  are provided at both the right and left sides (both sides in the direction along the ends  2   c  and  2   e ) of the pointing device  8   a.    
     As illustrated in  FIG. 1 , the second housing  2  accommodates equal to or more than one substrate  6  at the rear side (back side, rear side, wall  2   m  side, side opposite the operation face  7   a ) of the keyboard  7 . The substrate  6  is provided in parallel with the keyboard  7 . The substrate  6  is provided so as to be separated from the walls  2   k,    2   m,    2   n,  and the like, that is, provided in a state in which spaces (intervals) are formed between the substrate  6  and the walls  2   k,    2   m,    2   n,  and the like. 
     For example, on the substrate  6 , a plurality of components (not illustrated) such as a central processing unit (CPU), a graphic controller, a power supply circuit component, a platform controller hub (PCH), a memory slot connector, an LCD connector, an input/output (I/O) connecter, a power supply coil, an element, and a connector can be mounted. Furthermore, a control circuit can comprise a video image signal processing circuit, a tuner module, a high-definition multimedia interface (HDMI, registered trademark) signal processor, an audio video (AV) input terminal, a remote control signal receiver, a controller, a selector, an on-screen display interface, a storage module (for example, read only memory (ROM), random access memory (RAM), hard disk drive (HDD), solid state drive (SSD)), and an audio signal processing circuit, for example. The control circuit controls output of a video image (moving image, still image, and the like) from the display screen  4   a  of the display device  4 , output of audio from a speaker (not illustrated), light emission from a light emitting diode (LED, not illustrated), and the like. The display device  4 , the speaker, the LED, and the like are examples of an output module. 
     In the embodiment, an antenna  12  (electric component, second electric component) is provided in the second housing  2 , as an example. For example, the antenna  12  can be formed as a near field communication (NFC) antenna, a planar antenna, a coil antenna, or the like. 
     As illustrated in  FIGS. 1 and 2 , at least a portion of the antenna  12  overlaps with the first portion A 1  provided on the palm rest  30  at the inner side of the wall  2   k  (inner side of the second housing  2 ), as an example. To be specific, the antenna  12  is fixed (bonded) to the face  2   x  of the first portion A 1  with an adhesion portion (for example, double-stick tape, adhesive). In this manner, the antenna  12  overlaps the first portion A 1  which is configured to transmit electromagnetic waves so as to perform data communication through the first portion A 1 . As an example, when the antenna  12  is configured as the NFC antenna, a terminal device such as an IC card is held on the antenna  12  from the outer side (outer side of the second housing  2 ) of the first portion A 1  of the wall  2   k  so as to make communication (for example, near field communication (NFC)) between the terminal device and the control circuit that is electrically connected to the antenna  12 . 
     As illustrated in  FIGS. 2 and 4 , the antenna  12  has a square shape (in the embodiment, rectangular shape, as an example) when viewed from the above and is configured to have a flattened rectangular parallelepiped (plate-like) shape, as an example. The antenna  12  comprises a face  12   a  (anterior face, upper face, front face, face portion) that is fixed (bonded) to the face  2   x  and a face  12   b  (posterior face, lower face, rear face, face portion) at the side opposite the face  12   a.  Both the face  12   a  and the face  12   b  extend (are enlarged) along the direction intersecting with (in the embodiment, direction orthogonal to, as an example) the thickness direction (Z direction) of the second housing  2 . The face  12   a  and the face  12   b  are substantially parallel with each other. Furthermore, the antenna  12  comprises four faces  12   c  (side faces, peripheral faces) connecting the face  12   a  and the face  12   b  with each other. 
     In the embodiment, a shield member  13  (first shield member, electromagnetic shield member) is provided on the antenna  12  at the side opposite the wall  2   k  (first portion A 1 ), as an example. The shield member  13  comprises a conductor  23  (first conductor). 
     To be specific, the shield member  13  is formed by a sheet-like (deformable) metal member (for example, aluminum sheet, aluminum foil, aluminum tape) having conductivity and flexibility. Furthermore, the substrate  6  (circuit board) is provided on the shield member  13  at the side opposite the antenna  12 . That is to say, the shield member  13  is located between the antenna  12  and the substrate  6 . Thus, the shield member  13  is interposed between the antenna  12  and an electric component (in the embodiment, substrate  6  as an example) different from the antenna  12  that is accommodated in the second housing  2 . This suppresses interference between electromagnetic waves of the electric component and electromagnetic waves of the antenna  12  (interactive interference between the electric component and the antenna  12 ). It is to be noted that a film-like (thin plate-like) insulating member  24  (for example, insulator) suppressing the conduction between the shield member  13  and the substrate  6  is provided therebetween. 
     As illustrated in  FIGS. 2 and 3 , the shield member  13  comprises a first shield  13   a,  a second shield  13   b,  and a fixing portion  13   c  (portion), as an example. The first shield  13   a  extends along the direction intersecting with (in the embodiment, direction orthogonal to, as an example, the direction substantially parallel with the wall  2   k ) the thickness direction (Z direction) of the second housing  2  and covers the antenna  12  at the side opposite the first portion A 1 . The second shield  13   b  extends along the direction (in the embodiment, thickness direction of the second housing  2 , Z direction, as an example) intersecting with the wall  2   k  and covers a periphery of the antenna  12 . The fixing portion  13   c  is located on the second shield  13   b  at the side opposite the antenna  12 . The fixing portion  13   c  extends along the direction intersecting with (in the embodiment, direction orthogonal to, as an example, the direction substantially parallel with the wall  2   k ) the thickness direction (Z direction) of the second housing  2 . The first shield  13   a,  the second shield  13   b,  and the fixing portion  13   c  are configured integrally and are electrically connected to one another. 
     In the embodiment, a spacer  14  (first spacer) is provided between the antenna  12  and (the first shield  13   a  of) the shield member  13 , as an example. As illustrated in  FIGS. 2 to 4 , the spacer  14  has a square shape (in the embodiment, rectangular shape as an example) having substantially the same size as the antenna  12  when viewed from the above and is configured to have a flattened rectangular parallelepiped (plate-like) shape. The spacer  14  covers substantially the overall region of the (face  12   b  of the) antenna  12 . Furthermore, the spacer  14  is fixed (bonded) to the (face  12   b  of the) antenna  12  or (the first shield  13   a  of) the shield member  13  with an adhesion (for example, double-stick tape, adhesive). The spacer  14  can be formed by an elastic member (in the embodiment, sponge (foam material), as an example) that is non-conductive (non-conductor) and is relatively light. The spacer  14  is interposed between the antenna  12  and (the first shield  13   a  of) the shield member  13  in this manner. This can prevent a problem that the antenna  12  or the first shield  13   a  is deformed or moved and the first shield  13   a  and the antenna  12  make closer to each other from occurring, for example. According to the embodiment, a distance between the antenna  12  and the first shield  13   a  is easy to be kept, so that lowering of the communication performance of the antenna  12  is easy to be suppressed, as an example. In addition, the spacer  14  is provided, so that the distance between the antenna  12  and the first shield  13   a  is easy to be kept even when the shield member  13  is formed by a film of aluminum alloy having relatively high flexibility (that is easy to be deformed), or the like. With this, the shield member  13  is easy to be configured at lower cost, as an example. 
     Furthermore, in the embodiment, a spacer  15  (second spacer) is provided between the antenna  12  and the second shield  13   b,  as an example. As illustrated in  FIGS. 2 to 4 , the spacer  15  is formed into a frame (in the embodiment, square frame form) surrounding the antenna  12 . The spacer  15  covers substantially the overall region of the periphery of the antenna  12 . The spacer  15  is fixed (bonded) to the wall  2   k  (face  2   x  of the wall  2   k ), (the faces  12   c ) of the antenna  12 , or (the second shield  13   b  of) the shield member  13  with an adhesion (for example, double-stick tape, adhesive). The spacer  15  can be formed by an elastic member (for example, sponge (foam material) that is non-conductive (conductor) and is relatively light in the same manner as the spacer  14 . The spacer  15  is interposed between the antenna  12  and the second shield  13   b  in this manner. This can prevent a problem that the antenna  12  or the second shield  13   b  is deformed or moved and the second shield  13   b  and the antenna  12  make closer to each other from occurring, for example. According to the embodiment, a distance between the antenna  12  and the second shield  13   b  is easy to be ensured, so that lowering of communication performance of the antenna  12  is easy to be suppressed by the second shield  13   b,  as an example. In addition, the spacer  15  is provided, so that the distance between the antenna  12  and the second shield  13   b  is easy to be kept even when the shield member  13  is formed by a film of aluminum alloy having relatively high flexibility (that is easy to be deformed), or the like. With this, the shield member  13  is easy to be configured at lower cost, as an example. 
     In the embodiment, the fixing portion  13   c  (portion located at the periphery side of the antenna  12 ) of the shield member  13  is fixed to the face  2   x  side (placement surface side) of the wall  2   k,  as an example. That is to say, the shield member  13  is made into a state of being suspended upside down from the wall  2   k  provided with the palm rest  30  in the state (posture) where the electronic device  1  is placed on the placement surface. The shield member  13  deflects in the direction of being separated from the antenna  12  with a gravity force, as an example. This can further separate (the first shield  13   a  of) the shield member  13  and the antenna  12  from each other (further prevent the first shield  13   a  and the antenna  12  from making closer to each other). 
     The fixing portion  13   c  is connected (bonded) to the shield member  18  through a conductive adhesion layer (for example, double-stick tape containing a conductive filler, not illustrated). When the shield member  13  is not electrically grounded and is in a floating state, there is a risk that electromagnetic noise is transferred through the shield member  13 . In this point, according to the embodiment, the fixing portion  13   c  of the shield member  13  is electrically connected (ground-connected) to the shield member  18 , so that shielding property of the shield member  13  is easy to be enhanced. 
     As described above, in the embodiment, the spacer  14  (first spacer) is interposed between the antenna  12  and the shield member  13  (first shield member), as an example. According to the embodiment, the spacer  14  is easy to keep the state where the shield member  13  and the antenna  12  are separated from each other, as an example. This makes it easy to suppress lowering of the communication performance of the antenna  12 , as an example. 
     In addition, in the embodiment, the spacer  14  (first spacer) is configured to have substantially the same size as the antenna  12 , as an example. That is to say, the spacer  14  covers substantially the overall region of the face  12   b  of the antenna  12 . With this, according to the embodiment, the distance between the shield member  13  and the antenna  12  is easy to be constant in comparison with the configuration in which the spacer  14  covers the face  12   b  of the antenna  12  partially, as an example. This makes it easy to suppress lowering of the communication performance of the antenna  12 , as an example. 
     In the embodiment, the shield member  13  (first shield member) comprises the first shield  13   a  located on the antenna  12  at the side opposite the first portion A 1  and the second shield  13   b  located on the periphery of the antenna  12 , as an example. According to the embodiment, the first shield  13   a  can cover the antenna  12  at the side opposite the first portion A 1  and the second shield  13   b  can cover the periphery of the antenna  12 , as an example. This makes it easy to suppress interactive interference between the electromagnetic waves of the antenna  12  and the electromagnetic waves of the electric component (for example, substrate  6 ) located on the shield member  13  at the side opposite to the antenna  12 , as an example. 
     Furthermore, in the embodiment, the spacer  15  (second pacer) is interposed between the antenna  12  and the second shield  13   b,  as an example. According to the embodiment, lowering of the communication performance of the antenna  12  is easier to be suppressed, as an example. It is to be noted that a slight space may be provided between the spacer  15  and the second shield  13   b  or between the spacer  15  and the antenna  12 . 
     In the embodiment, the spacer  15  (second spacer) is formed into a frame surrounding the antenna  12 , as an example. According to the embodiment, the distance between the antenna  12  and (the second shield  13   b  of) the shield member  13  is easy to be kept constant on the periphery of the antenna  12 , as an example. This makes it easier to suppress lowering of the communication performance of the antenna  12 , as an example. 
     In the embodiment, the fixing portion  13   c  (portion located at the peripheral edge side of the antenna  12 ) of the shield member  13  is fixed to the face  2   x  side (placement surface side) of the wall  2   k,  as an example. According to the embodiment, (the first shield  13   a  of) the shield member  13  can be separated from the antenna  12  with a gravity force in the state where the electronic device  1  is placed on the placement surface (flat surface), as an example. This makes it easier to suppress lowering of the communication performance of the antenna  12 , as an example. Furthermore, only the fixing portion  13   c  is fixed to the wall  2   k  side, as an example. This can easily suppress a problem that construction cost of the electronic device  1  is increased and the manufacturing processing of the electronic device  1  is complicated in comparison with the configuration in which the first shield  13   a  and the second shield  13   b  are further fixed to the spacers  14  and  15 , respectively, with an adhesion portion (for example, double-stick tape, adhesive). It is to be noted that a slight space may be provided between the spacer  14  and (the first shield  13   a ) of the shield member  13  or between the spacer  14  and the antenna  12  in a state where the electronic device  1  is placed on the placement surface (flat surface). 
     Furthermore, in the embodiment, at least one of the spacer  14  (first spacer) and the spacer  15  (second spacer) (in the embodiment, both of them, as an example) is formed by an elastic member, as an example. According to the embodiment, elastic repulsion forces of the spacers  14  and  15  are easy to prevent the antenna  12  and the shield member  13  from making closer to each other. In addition, according to the embodiment, the electronic device  1  is easy to be made light, as an example. Although the spacers  14  and  15  overall are formed by the elastic member in the embodiment, at least a part of the spacers  14  and  15  may be formed by the elastic member. That is to say, the spacers  14  and  15  may comprise (include or have) an elastic member. 
     Furthermore, in the embodiment, at least one of the spacer  14  (first spacer) and the spacer  15  (second spacer) (in the embodiment, both of them, as an example) is formed by a sponge, as an example. According to the embodiment, the electronic device  1  is easier to be made light, as an example. It is to be noted that although the elastic member constituting the spacers  14  and  15  is formed by a sponge (foam material) in the embodiment, the elastic member may be formed by an elastomer, a synthetic resin material, a silicon resin material, or the like. 
     Furthermore, in the embodiment, the shield member  13  (first shield member) is formed into a deformable sheet, as an example. According to the embodiment, the fixing portion  13   c  is fixed to the wall  2   k  side, (the first shield  13   a  of) the shield member  13  is made into a state of being suspended from the wall  2   k,  as an example. With this, the shield member  13  is easy to be separated from the antenna  12  with the gravity force. This makes it easier to suppress lowering of the communication performance of the antenna  12 , as an example. In addition, the shield member  13  is easy to be configured to be lighter at lower cost and the shield member  13  is easy to be attached by adhesion or the like more easily in comparison with the configuration in which the shield member  13  is formed by a hard metal plate or the like, as an example. 
     In the embodiment, the substrate  6  (circuit board) that overlaps with the shield member  13  (first shield member) and the shield member  18  (second shield member) in the thickness direction (Z direction) is provided, as an example. That is to say, the shield member  13  is located between the antenna  12  and the substrate  6 . According to the embodiment, interactive interference between the electromagnetic waves of the substrate  6  and the electromagnetic waves of the antenna  12  is easy to be suppressed, as an example. 
     In the embodiment, the conductor  23  (first conductor portion) of the shield member  13  (first shield member) and the conductor  28  (second conductor) of the shield member  18  (second shield member) are electrically connected to each other, as an example. According to the embodiment, the shield member  13  is prevented from being made into a state where it is not grounded and floats, so that the shielding property of the shield member  13  is easy to be further enhanced, as an example. 
     Second Embodiment 
     The electronic device  1  according to the embodiment as illustrated in  FIG. 5  has the same or similar configuration as the electronic device  1  according to the above-mentioned embodiment. Accordingly, the embodiment can also obtain the same results (effects) based on the same or similar configuration as that in the above-mentioned embodiment. 
     Note that in the embodiment, as illustrated in  FIG. 5 , a spacer  16  comprises the spacer  14  (first spacer, see  FIG. 2 ) and the spacer  15  (second spacer, see  FIG. 2 ), as an example. That is to say, the spacer  16  has a configuration in which the spacer  14  (first spacer) and the spacer  15  (second spacer) are integrated with each other. The spacer  16  is fixed to the face  12   b  of the antenna  12  and the face  2   x  of the first portion A 1  with an adhesive portion (for example, double-stick tape, adhesive). Furthermore, the spacer  16  can be formed by an elastic member (for example, sponge (foam material)) that is non-conductive (non-conductor) and is relatively light. According to the embodiment, a troublesome effort for an operation of attaching the spacer  16  to the antenna  12  and the wall  2   k  is easy to be reduced in comparison with the case where the spacer  14  (first spacer) and the spacer  15  (second spacer) are configured as separate bodies, as an example. Although the thickness of the portion of the spacer  16  that is superimposed with the antenna  12  and the thickness of the portion thereof that is located on the peripheral edge of the antenna  12  are different from each other in the embodiment, the thickness of the spacer  16  may be constant. The same applies to the spacer  14  (first spacer) and the spacer  15  (second spacer) in the above-mentioned first embodiment. 
     Third Embodiment 
     The electronic device  1  according to the embodiment as illustrated in  FIG. 6  has the same or similar configuration as the electronic device  1  according to the above-mentioned embodiment. Accordingly, the embodiment can also obtain the same results (effects) based on the same or similar configuration as that in the above-mentioned embodiment. 
     Note that in the embodiment, as illustrated in  FIG. 6 , a shield member  19  (third shield member) is provided between the antenna  12  and the first shield  13   a,  as an example. To be specific, the shield member  19  is located between the antenna  12  and the spacer  14  (first spacer), as an example. The shield member  19  is configured to have substantially the same size as the antenna  12  and cover substantially the overall region of (the face  12   b  of) the antenna  12 . The shield member  19  can be formed by a sheet-like magnetic member (for example, ferrite sheet). According to the embodiment, the shield member  19  (third shield member) formed by a magnetic member enables the shield member  13  (first shield member) to be located at a position closer to the antenna  12  in comparison with the configuration in the above-mentioned first embodiment, as an example. With this, the thickness of the second housing  2  is easy to be made thinner, as an example. It is to be noted that although the shield member  19  is provided between (the face  12   b ) of the antenna  12  and the spacer  14  (first spacer) only in the embodiment, it may be further provided between (the surfaces  12   c ) of the antenna  12  and the spacer  15  (second spacer). 
     Fourth Embodiment 
     The electronic device  1  according to the embodiment as illustrated in  FIG. 7  has the same or similar configuration as the electronic device  1  according to the above-mentioned embodiment. Accordingly, the embodiment can also obtain the same results (effects) based on the same or similar configuration as that in the above-mentioned embodiment. 
     Note that in the embodiment, as illustrated in  FIG. 7 , (the wall  2   k ) of the second housing  2  is made of a metal material (conductive material, conductor, for example, magnesium alloy) and at least a part of the wall  2   k  is made of a synthetic resin material (non-conductive material, non-conductor), for example, by two-color molding or the like, as an example. That is to say, in the embodiment, the shield member  18  (second shield member) is configured integrally with the wall  2   k.  In the embodiment, a portion of the wall  2   k  that is made of a synthetic resin material corresponds to the first portion A 1  and a portion of the wall  2   k  that is made of a metal material corresponds to the second portion A 2 . With this, according to the embodiment, the first portion A 1  and the second portion A 2  are easy to be molded more easily in comparison with the configuration in which the shield member  18  as a separate body from the wall  2   k  is provided on the face  2   x  of the wall  2   k,  as an example. 
     While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions.