Abstract:
A densely-packaged communication device with reduced mutual interference between camera and antenna includes a housing, a package case, a camera control device, an integrated circuit device, a circuit board, and an antenna. The package case is permanently grounded and is received in the housing. The camera control device is configured to control and drive the camera structure. The camera structure, the camera control device, the integrated circuit device, and the circuit board are housed in the package case to form a packaged structure, the antenna structure surrounds an outer side wall of the package case.

Description:
FIELD 
       [0001]    The subject matter herein generally relates to a communication device. 
       BACKGROUND 
       [0002]    Communication devices, such as mobile phones or tablet computers, usually have wireless communication functions. The communication device may also comprise a camera. However, when the device&#39;s communication antenna is arranged adjacent to the camera, the metallic bracket housing the camera may seriously degrade the radiation efficiency of the antenna. When the antenna is positioned away from the camera to improve radiation efficiency, quality of communication increases. Therefore, it would be better to avoid compromising the portability of the communication device to improve radiation efficiency. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures, wherein: 
           [0004]      FIG. 1  is an isometric view of a first exemplary embodiment of a communication device. 
           [0005]      FIG. 2  is an exploded view of the communication device of  FIG. 1 . 
           [0006]      FIG. 3  is an enlarged schematic view, from another angle, of a package structure of the communication device of  FIG. 2 . 
           [0007]      FIG. 4  is a second exemplary embodiment of a communication device. 
       
    
    
     DETAILED DESCRIPTION 
       [0008]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth to provide a thorough understanding of the exemplary embodiments described herein. However, it will be understood by those of ordinary skill in the art that the exemplary embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the exemplary embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
         [0009]    One definition that applies throughout this disclosure will now be presented. 
         [0010]    The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, assembly, series, and the like. 
         [0011]      FIGS. 1 to 3  illustrate a first exemplary embodiment of a communication device  100 . The communication device  100  comprises a housing  10 , a package structure  20  received in the housing  10 , and an antenna structure  40 . In the exemplary embodiment, the communication device  100  is a mobile phone. In other exemplary embodiments, the communication device  100  may be another portable electronic device having a communication function, such as a tablet computer. 
         [0012]    The housing  10  is substantially rectangular, and comprises an upper portion  11  and a lower portion  12 . The upper portion  11  and the lower portion  12  attach together to define an enclosed space. At least one first opening  123  is defined in the lower portion  12 . In the exemplary embodiment, the upper portion  11  is a front cover which defines a transparent window for receiving a display screen (not shown). The lower portion  12  is a back plate. The upper portion  11  and the lower portion  12  may be secured to each other by screws. 
         [0013]    The package structure  20  comprises a package case  21 , a circuit board  23 , a camera structure  24 , a camera control device  25 , and an integrated circuit device  26 . The camera structure  24  may be partially exposed through the housing  10 . The camera structure  24 , the camera control device  25 , and the integrated circuit device  26  are positioned on the circuit board  23 . The circuit board  23  is received in the enclosed space. 
         [0014]    The package case  21  comprises a cover  212 , a substrate  214 , and four sidewalls  216 . At least one second opening  213  is defined in the cover  212 . In the exemplary embodiment, the cover  212  and the substrate  214  are substantially rectangular. In other exemplary embodiments, the cover  212  and the substrate  214  may be other polygonal shapes such as quadrilateral, pentagonal, and the like. The four sidewalls  216  are each positioned at a periphery of the substrate  214  and each extends perpendicularly from each edge of the substrate  214 . In the exemplary embodiment, two first openings  123  are defined in the lower portion  12 . Two second openings  213  are defined in the cover  212  and each aligns with each of the two first openings  123 . In the exemplary embodiment, the package case  21  is made of an insulating material such as plastic. In the exemplary embodiment, the cover  212 , the substrate  214 , and the sidewalls  216  are secured together by a latching structure. In other exemplary embodiments, the cover  212 , the substrate  214 , and sidewalls  216  may be secured together by screws. 
         [0015]    The circuit board  23  is positioned on the substrate  214 . The circuit board  23  is substantially flat, and is used to supply voltage and control signals to the camera control device  25  and the integrated circuit device  26 . 
         [0016]    The camera structure  24  is electrically connected to the camera control device  25 . The camera structure  24  comprises a first camera  241 , a second camera  243 , and a first frame  245 . In other exemplary embodiments, the number of the cameras comprised in the camera structure  24  is not limited to two. 
         [0017]    Both the first camera  241  and the second camera  243  have substantially the same orientation. The first camera  241  is exposed through one second opening  213  and one first opening  123 . The second camera  243  is exposed through the other second opening  213  and the other first opening  123 . Both the first camera  241  and the second camera  243  can capture pictures or videos. When in the picture capturing state, the first camera  241  and the second camera  243  are configured to capture pictures. When in the video capturing state, the first camera  241  and second camera  243  are configured to capture videos. In the exemplary embodiment, the first camera  241  and second camera  243  can work together to capture three-dimensional pictures. The first camera  241  and second camera  243  may also be in different states, so that the camera structure  30  can obtain still images and videos simultaneously, for example, the first camera  241  may be in the video capturing state and the second camera  243  may be in the picture capturing state, or the first camera  241  may be in the picture capturing state and the second camera  243  may be in the video capturing state. In the exemplary embodiment, the first camera  241  and the second camera  243  may have different focal length adjustment ranges. In other exemplary embodiments, the first camera  241  and the second camera  243  may have the same focal length adjustment range. In other exemplary embodiments, at least one of the first camera  241  and the second camera  243  can be rotated relative to the circuit board  23 , to adjust an angle with respect to the circuit board  23 . 
         [0018]    The first frame  245  is electrically connected to a grounded area of the circuit board  23 . The first frame  245  can form a discharge path by the circuit board  23  to reduce generation of static electricity. The first frame  245  defines a first chamber  2451  and a second chamber  2452 . The first chamber  2451  is configured to receive the first camera  241 . The second chamber  2452  is configured to receive the second camera  243 . In the exemplary embodiment, the first frame  245  is made of metal. Inner surfaces of the first frame  245  define one or more projections (not shown) to engage with the first camera  241  or the second camera  243 . In other exemplary embodiments, the inner surfaces of the first frame  245  are stepped surfaces to support the first lens  241  or the second lens  243 . 
         [0019]    The camera control device  25  is electrically connected to the circuit board  23 . The camera control device  25  controls the first camera  241  and the second camera  243  simultaneously. In the exemplary embodiment, the camera control device  25  may control the first camera  241  or the second camera  243  to switch from a picture capturing state to a video capturing state, and may control the first camera  241  or the second camera  243  to rotate relative to the circuit board  23 . 
         [0020]    The integrated circuit device  26  is electrically connected to the circuit board  23 . The communication device  100  has a wireless communication function and position locating function through the integrated circuit device  26 . In the exemplary embodiment, the integrated circuit device  26  may comprise a long term evolution (LTE) device, a global positioning system (GPS), a WIFI communication device, and a BLUETOOTH device. The integrated circuit device  26  may work at a frequency band of 2.4 GHz, 5 GHz, or 60 GHz. 
         [0021]    In the exemplary embodiment, both the first camera  241  and the second camera  243  are controlled by the camera control device  25  and the integrated circuit device  26 . Thus, the first camera  241  and the second camera  243  are positioned on the same circuit board  23 . The first camera  241  and the second camera  243  are mounted and packaged by the same package case  21  to improve integration of the communication device  100 . 
         [0022]    The antenna structure  40  is a planar antenna, and surrounds the sidewalls  216  of the package case  21 . The antenna structure  40  may comprise a plurality of antennas made of metal. In the exemplary embodiment, the antenna structure  40  surrounds two adjacent sidewalls  216  of the package case  21 . 
         [0023]    Electromagnetic interference generated within the camera structure  24 , the camera control device  25 , and the integrated circuit device  26  can be avoided by positioning the antenna structure  40  at the sidewalls  216  of the package case  21 . Furthermore, the camera structure  24 , the camera control device  25 , and the integrated circuit device  26  are all located within the package structure  20  to improve integration of the communication device  100  and maintain a portable communication device. Moreover, the first frame  245  can form a discharge path for the circuit board  23  to reduce generation of static electricity. 
         [0024]      FIG. 4  illustrates a second exemplary embodiment of communication device  100 . 
         [0025]    The difference between the second exemplary embodiment and the first exemplary embodiment is that the camera structure  24  comprises a first frame  245  and a second frame  247 . 
         [0026]    The first frame  245  and the second frame  247  are electrically connected to the ground region of the circuit board  23 . The first frame  245  and the second frame  247  can form a discharge path for the circuit board  23  to reduce generation of static electricity. The first frame  245  is configured to receive the first camera  241 . The second frame  247  is configured to receive the second lens  243 . The first frame  245  and the second frame  247  are integrally formed, and the first frame  245  and the second frame  247  are both made of metal. In the exemplary embodiment, one or more projections are positioned on inner surfaces of the first frame  245  and the second camera  247  to engage with the first camera  241  and the second camera  243 . In other exemplary embodiments, the inner surfaces of the first frame  245  and the second frame  247  are stepped surfaces to support the first camera  241  and the second camera  243 . 
         [0027]    Both the first frame  245  and the second frame  247  can form a discharge path for the circuit board  23  to reduce generation of static electricity. 
         [0028]    The exemplary embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including, the full extent established by the broad general meaning of the terms used in the claims.