Patent Publication Number: US-2012032858-A1

Title: Electronic device having antenna pattern embedded in case and method for manufacturing the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the priority of Korean Patent Application No. 10-2010-0076105 filed on Aug. 6, 2010, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an electronic device having an antenna pattern embedded in a case and a method for manufacturing the same. 
     2. Description of the Related Art 
     Mobile communication terminals such as mobile phone, a personal digital assistant (PDA), a navigation device, a notebook computer, and the like, supporting radio communications are requisite devices in modern society. With the technology evolving, diverse functions such as RFID (Radio-Frequency IDentification), NFC (Near Field Communications), GSM (Global System for Mobile communications), UMTS (Universal Mobile Telecommunications System), GPRS (General Packet Radio Service), CDMA (wideband code division multiple access), WIFI (wireless fidelity), and the like, are increasingly added to mobile communication terminals, and one of the most important components enabling these functions is an antenna. 
     In order to implement such functions in a mobile communication terminal, a method for implementing a matching circuit on a main circuit board, designing an antenna such that it can operable at a frequency band according to each function, and coupling the main circuit board and the antenna must be considered. 
     However, because respective mobile communication terminals are designed to have different locations for matching circuits and antenna connection structures, generality is degraded when antennas for applying such functions are designed, and the fabrication cost increases due to a high-priced magnetic sheet applied to an FPCB antenna to secure antenna performance. 
     In addition, a space for the matching circuit on the main circuit board must be secured in advance, degrading a space utilization of the main circuit board. 
     SUMMARY OF THE INVENTION 
     An aspect of the present invention provides an electronic device capable of implementing various functions commonly in every device by designing a matching circuit, which is devised for implementing those various functions, in a smart card, such as a USIM card, and forming a coupling member for coupling an antenna and the matching circuit in the antenna, and a method for manufacturing the same. 
     According to an aspect of the present invention, there is provided an electronic device including: a radiator embedded within (inside of, or in the interior of) a case and having an antenna pattern part for transmitting and receiving a signal; a smart card having a matching unit for matching a signal between a main board separated from the case and the radiator and a connection pad formed on one surface thereof to electrically connect the radiator and the matching unit; and a coupling member having one end portion coupled to the radiator so as to be embedded within the case and the other end portion protruded from a lower surface of the case so as to be elastically in contact with the connection pad to allow the radiator and the matching unit to be electrically coupled. 
     The electronic device may further include: a radiator frame allowing the radiator and the one end portion of the coupling member to be embedded within the case. 
     The radiator frame may be made of a polymer-ceramic composite material including a magnetic component having a high permeability or a dielectric component having a high permittivity. 
     The electronic device tray further include: a case frame covering one surface of the radiator frame to allowing the antenna pattern part to be embedded between the case frame and the radiator frame. 
     The radiator frame may include: a radiator support in contact with one side of the coupling member and protruded from a face of the radiator frame opposed to one surface on which the antenna pattern part is formed; and a reinforcing part in contact with the other side of the coupling member to prevent the coupling member from being released from the radiator support. 
     The coupling member may include: a coupling portion extending by being bent down from one end of the antenna pattern part; and a coupling terminal portion extending by being bent to the side from an end portion of the coupling portion opposed to the end portion coupled to one end of the antenna pattern part and having a bent portion elastically in contact with the connection pad. 
     The coupling member may be configured as a member separate from the antenna pattern part. 
     The coupling member may be configured as a C-clip or a pogo pin. 
     The antenna pattern part may be a low frequency antenna allowing the smart card to perform RFID (Radio Frequency IDentification), NFC (Near Field Communications), or WIFI (Wireless Fidelity) function. 
     The antenna pattern part may be a high frequency antenna allowing the smart card to perform a GSM (Global System for Mobile communications) or UMTS (Universal Mobile Telecommunications System) function. 
     According to another aspect of the present invention, there is provided an electronic device including: a radiator having an antenna pattern part for transmitting and receiving a signal; a coupling member having one end portion coupled to the radiator so as to be embedded within a case and the other end portion protruded from a lower surface of the case; a radiator frame formed such that the radiator and one end of the coupling member are embedded within the case, and having a radiator support separated from the other end of the coupling member to allow the coupling member to have elasticity and protruded from a face opposed to one surface on which the antenna pattern part is formed; and a smart card having a matching unit for matching a signal between a main board separated from the case and the radiator and a connection pad coupled to the other end portion of the coupling member. 
     The electronic device may further include: a case frame covering one surface of the radiator frame to allow the antenna pattern part to be embedded between the case frame and the radiator frame. 
     The coupling member may include a coupling portion extending by being bent down from one end of the antenna pattern part and having one side in contact with the radiator support; and a coupling terminal portion extending by being bent to the side from an end portion of the coupling portion opposed to the end portion coupled to one end of the antenna pattern part and having a bent portion elastically in contact with the connection pad. 
     According to another aspect of the present invention, there is provided a method for manufacturing an electronic device, including: coupling one end portion of a coupling member to a radiator having an antenna pattern part for transmitting and receiving a signal; disposing the radiator, to which the coupling member is coupled, such that it is brought into contact with one surface of a mold for manufacturing a radiator frame and filling the mold for manufacturing a radiator frame with a resin material to manufacture a radiator frame; disposing the radiator frame within a mold for manufacturing a case and filling the mold for manufacturing a case with a resin material to manufacture a case with the radiator embedded therein; and connecting the other end portion of the coupling member to a connection pad formed on one surface of a smart card including a matching unit for matching a signal between a main board and the radiator. 
     The method may further include: bending the other end portion of the coupling member to the side and forming a bent portion elastically in contact with the connection pad. 
     In the manufacturing of the radiator frame, the coupling member may be disposed in an accommodation recess formed in the mold for manufacturing the radiator frame, the accommodation recess may be filled with a resin material, the radiator support may be formed at one side of the coupling member, and a reinforcing part may be formed at the other side of the coupling member. 
     The other end portion of the coupling member may be disposed at a filling preventing hole formed on a lower surface of the accommodation recess so that the other end portion of the coupling member may not be filled with the resin material. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: 
         FIG. 1  is an cutaway exploded perspective view of a mobile communication terminal, an electronic device, according to a first exemplary embodiment of the present invention; 
         FIG. 2  is a coupled sectional view of as case of the mobile communication terminal, an electronic device, and a USIM card according to the first exemplary embodiment of the present invention; 
         FIG. 3  is a view showing a configuration of the USIM card of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention; 
         FIG. 4  is a perspective view showing a radiator and a coupling member of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention; 
         FIG. 5  is a perspective view of a radiator frame of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention; 
         FIG. 6  is a sectional, view of a radiator frame of an electronic device according to a second exemplary embodiment of the present invention; 
         FIG. 7  is a sectional view of a radiator frame of an electronic device according to a third exemplary embodiment of the present invention; 
         FIG. 8  is a sectional view of the radiator frame of an electronic device according to the first exemplary embodiment of the present invention; 
         FIGS. 9A to 9C  are views showing the process of a method for manufacturing the radiator frame of  FIG. 8 ; 
         FIG. 10A  is sectional view of a case of an electronic device having an antenna pattern embedded therein according to the first exemplary embodiment of the present invention; and 
         FIG. 10B  is a schematic sectional view showing now a mold for manufacturing a case is filled with a resin material to manufacture the case of  FIG. 10A . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. 
     In the drawings, the shapes and dimensions may be exaggerated for clarify, and the same reference numerals will be used throughout to designate the same or like components. 
       FIG. 1  is a cutaway exploded perspective view of a mobile communication terminal, an electronic device, according to a first exemplary embodiment of the present invention.  FIG. 2  is a coupled sectional view of a case of the mobile communication terminal, an electronic device, and a USIM card according to the first exemplary embodiment of the present invention.  FIG. 3  is a view showing a configuration of the USIM card of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention.  FIG. 4  is a perspective view showing a radiator and a coupling member of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention.  FIG. 5  is a perspective view of a radiator frame of the mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention. 
     With reference to  FIGS. 1 to 5 , a mobile communication terminal  100 , an electronic device, according to a first exemplary embodiment of the present invention may include an upper case  120  having a radiator  210  with an antenna pattern part embedded therein, a lower case  140  accommodating a main body, and a smart card  300  mounted on one surface of the main body. 
     As shown in  FIGS. 1 and 2 , the radiator frame  200  including a radiator  210  having an antenna pattern part formed thereon and a coupling member  220  for electrically coupling the antenna pattern part are formed within the upper case  120  such that the radiator  210  is embedded. 
     The upper case  120  includes a case frame  122  that covers one surface of the radiator frame  200  so that the radiator  210  can be embedded between the case frame  122  and the radiator frame  200 . 
     The radiator frame  200  may be formed by insert injection-molding the radiator  210  having the coupling member  220  coupled one end thereof, and may be made of a polymer-ceramic composite material including a magnetic it component having a high permeability. 
     A radiator support  232  is formed to be in contact with one side of the coupling member  220 , and a reinforcing part  234  may be formed to be in contact with the other side of the coupling member  220  in order to prevent the coupling member  220  from being released from the radiator support  232 . 
     In the present exemplary embodiment, the radiator  210  is separately manufactured and forms the radiator frame  200  through insert injection molding with the coupling member  220 , but the present invention is not limited thereto and a conductive material may be coated on one surface of a body part  230  and solidified to form the radiator  210  and the coupling member  220  may be bonded to one end of the radiator  210 . 
     The radiator  210  may be formed through one of sputtering, printing, plating, stamping, drawing, and dispensing on the body part  230 . 
     In addition, the body part  230  may include an insertion groove formed between the radiator support  232  and the reinforcing part  234  to allow the coupling member  220  to be inserted therein so as to be coupled to the radiator  210 . Namely, a coupling portion  222  of the coupling member  220  is inserted into the insertion groove and formed such that one side thereof is in contact with the radiator support  232  and the other side thereof is in contact with the reinforcing part  234 . 
     As shown in  FIG. 3 , the smart card  300  may include an IC chip  310 , a matching circuit  320 , and a coupling member  330  to which the coupling member  220  is connected. 
     The smart card  300 , including the IC chip  310  equipped with a microprocessor, an operating system, a security module, a memory, and the like, to allow the smart card  300  to have a storage function, a calculation function, and a security function, is a plastic card commonly used as a means for recording information, identifying a person, payment, and the like in the entire social sectors such as communication, banking, education, administration, traffic, and the like. A smart card for a module for checking a mobile communication terminal subscriber includes a SIM (subscriber identity module) card, a USIM (universal subscriber identity module) card, a UIM (user identity module) card, and the like. 
     The IC chip  310  is mounted on a substrate made of a plastic material, on which a microprocessor, an operating system, a security module, a memory, and the like, are mounted, and a contact terminal pad may be formed on an upper surface of the substrate, for an electrical connection of the IC chip  310 . 
     The matching circuit  320  is configured as a combination of impedance and a condenser having a π-shaped or T-shaped structure and connected in series/parallel. The matching circuit  320  matches a reception signal received from the antenna pattern part to a reception signal suitable for main body of the mobile communication terminal  100  or the smart card  300 , and matches a transmission signal from ode main body of the mobile communication terminal  100  or the smart card  300  to a transmission signal suitable for the antenna pattern part. 
     The coupling member  220 , coupled to one end portion of the radiator  210 , may be elastically in contact with the connection pad  330  in order to electrically connect the radiator  210  including the antenna pattern part and the matching circuit  320 . 
     As shown in  FIGS. 4 and 5 , the radiator frame  200  may include the radiator  210  including the antenna pattern part for transmitting or receiving a signal, a coupling member  220  coupled to one end portion, of the radiator  210  to transmit or receive the signal to the main body of the mobile communication terminal  100  or the smart card  300  or receive the signal from the main body of the mobile communication terminal  100  or the smart card  300 , and a body part  230  allowing the radiator  210  and the coupling member  220  to be embedded in the upper case  120 . 
     The radiator  210  may be made of a conductive material such as aluminum, copper, and the like, may include the antenna pattern part forming a meander line to receive external signals of various bands. 
     The antenna pattern part may be a low frequency antenna allowing the smart card to perform RFID (Radio-Frequency IDentification), NFC (Near Field Communications), or WIFI (Wireless Fidelity) function. 
     The antenna pattern part may be a high frequency antenna allowing the smart card to perform a GSM (Global System for Mobile communications) or UMTS (Universal Mobile Telecommunications System) function. 
     The coupling member  220  may be formed by bending, forming, and drawing a portion of the radiator  210 . One end portion of the coupling member  220  may be coupled to the radiator  210  and embedded within the upper case  120 , and the other end thereof may be protruded from a lower surface of the upper case  120 . 
     The coupling member  220  may include a coupling portion  222  extending by being bent down from one end of the radiator  210  and a coupling terminal portion  224  extending by being bent to the side from an end portion of the coupling portion  222  opposed to the end portion coupled to one end of the radiator  210 . 
     The coupling portion  222  may be formed to be have a greater length than that of the radiator support  232  and the reinforcing part  234  to facilitate bending, and accordingly, the opposite end portion of the coupling portion  222  can be separated from the radiator support  232  and the reinforcing part  234 . 
     The coupling terminal portion  224  may include a bent portion  226  formed to be elastically in contact with the connection pad  330 . The bent portion  226  may be formed by upwardly bending the coupling terminal portion  224 , and the coupling member  220  and the connection pad  330  can be reliably connected by the presence of the bent portion  226 . 
     The body part  230  may include the radiator support  232  in contact with one side of the coupling portion  222  and protruded from a face of the body part  230  opposed to one surface on which the antenna pattern part is formed, and a reinforcing part  234  in contact with the other side of the coupling portion  222  to prevent the coupling member  220  from being released from the radiator support  232 . 
     The radiator support  232  can firmly support the coupling portion  222  and when the coupling terminal portion  224  is elastically coupled to the connection pad  330 , the radiator support  232  serves to prevent the coupling terminal portion  224  from being excessively bent toward the coupling portion  222  due to excessive elasticity so as to cause a defective contact. 
       FIG. 6  is a sectional view of a radiator frame of an electronic device according to a second exemplary embodiment of the present invention. 
     The radiator frame of an electronic device according to the second exemplary embodiment of the present invention illustrated in  FIG. 6  is a variant of the coupling member, and the other elements of the electronic device according to the second exemplary embodiment of the present invention are substantially the same as those of the electronic device according to the first exemplary embodiment of the present invention as illustrated in  FIGS. 1 and 2 , so a detailed description thereof will be omitted and only the differences therebetween will be described hereinafter. 
     With reference to  FIG. 6 , a radiator frame  400  of the electronic device according to the second exemplary embodiment of the present invention may include a radiator  410  including an antenna pattern part for transmitting or receiving a signal, a coupling member  420  coupled to one end portion of the radiator  410  to transmit or receive the signal to or from a main body of the electronic device or a smart card, and a body part  430  formed to allow the radiator  410  and the coupling member  420  to be embedded within the case of the electronic device. 
     The coupling member  420  may include a front portion  428  attached to the opposite side of an exposed surface of the radiator  410 , a coupling portion  422  extending by being downwardly bent from one end of the front portion  428 , and a coupling terminal portion  424  extending by being bent to the side from an end portion of the coupling portion  422  opposed to the end portion coupled to one end of the front portion  428 . 
     Because the coupling member  420  according to the present exemplary embodiment has the front portion  428  attached with the radiator  410  in a surface-contact manner, the radiator  410  and the coupling member  420  can be reliably bonded (or attached). 
     The coupling member  420  according to the present exemplary embodiment may be, for example, a C-clip, or the like. 
       FIG. 7  is a sectional view of a radiator frame of an electronic device according to a third exemplary embodiment of the present invention. 
     The radiator frame of an electronic device according to the second exemplary embodiment of the present invention illustrated in  FIG. 7  is a variant of the coupling member, and the other elements of the electronic device according to the second exemplary embodiment of the present invention are substantially the same as those of the electronic device according to the first exemplary embodiment of the present invention as illustrated in  FIGS. 1 and 2 , so a detailed, description thereof will be omitted and the difference therebetween will be described hereinafter. 
     With reference to  FIG. 1 , a radiator frame  500  of the electronic device according to the third exemplary embodiment of the present invention may include a radiator  510  including an antenna pattern part for transmitting or receiving a signal, a coupling member  520  coupled to the radiator  510  to transmit or receive the signal to or from a main body of the electronic device or a smart card, and a body part  530  formed to allow the radiator  510  and the coupling member  520  to be embedded within the case of the electronic device. 
     The coupling member  520  may include a pin part  524  attached to the opposite side of an exposed surface of the radiator  510  and is elastically in contact with a connection pad of the smart card at the opposite end portion of an end portion attached to the radiator  510 , and a housing unit  522  in which the pin part  524  is inserted. 
     The pin part  524  may be configured as a spring member, and the opposite end portion may be sharp. The pin part  524  may be contracted to the interior of the housing part  522  according to a bonding force, between the upper and lower cases of the electronic device roes to be connected to the connection pad. 
     The coupling member  520  according to the present exemplary embodiment may be, for example, a pogo pin, or the like. 
     A method for manufacturing a mobile communication terminal, an electronic device, according to the first exemplary embodiment of the present invention will now be described. 
     First, in brief, the radiator is manufactured by forming the antenna pattern part, the coupling member is coupled to the radiator, which is then insert injection-molded to manufacture the radiator frame. The radiator frame is insert injection-molded to complete the upper case of the electronic device, and the upper case and a lower case are then combined, whereby the coupling member are elastically in contact with the connection pad of the smart card so as to be connected, thus completing the electronic device according to an exemplary embodiment, of the present invention. 
       FIG. 8  is a sectional view of the radiator frame of an electronic device according to the first exemplary embodiment of the present invention.  FIGS. 9A to 9C  are views showing the process of a method for manufacturing the radiator frame of  FIG. 8 .  FIG. 10A  is a sectional view of a case of an electronic device having an antenna pattern embedded therein according to the first exemplary embodiment of the present invention.  FIG. 10B  is a schematic sectional view showing how a mold for manufacturing a case is filled with a resin material to manufacture the case of  FIG. 10A . 
     With reference to  FIGS. 9A to 9C , one end portion of the coupling member  220  is coupled to the radiator  210  having the antenna pattern part for transmitting and receiving a signal, which is then disposed in a radiator frame manufacturing mold  600 . 
     The radiator frame manufacturing mold  600  includes an upper mold  610  on which the surface of the radiator  210  on which the antenna pattern part is formed is disposed to be in contact therewith and a lower mold  620  filled with a resin material therein. 
     The lower mold  620  may include an inner space  630  filled with the resin material, and an accommodation recess  650  may be formed on a lower surface of the inner space  630  in order to form the radiator support  232  and the reinforcing part  234 . 
     A filling preventing hole  622  may be formed on a lower surface of the accommodation recess  650  in which a portion of the coupling member  220  is inserted so that the portion for forming the coupling terminal portion  224  of the coupling member  220  cannot be filled with the resin material. 
     The filling preventing hale  622  may be penetratingly formed on the lower mold  620  in a thicknesswise direction from the lower surface of the accommodation recess  650 . In the present exemplary embodiment, the filling preventing hole  622  is formed penetratingly formed on the lower mold  620  and the portion, where the coupling terminal portion  224  of the coupling member  220  is to be formed, passing through the filling preventing hole  622 , is provided from the lower portion of the lower mold  620 . However, the present invention is not limited thereto, and the portion of the coupling portion  220  may not be protruded from the lower portion of the lower mold  620 , or the filling preventing hole  622  may not be penetratingly formed on the lower mold  620 . In this case, the lower mold  620  needs to have a thickness larger than the length of the coupling member  220 . 
     When the upper mold  610  and the lower mold  620  in which the radiator  210  and the coupling member  220  are disposed are combined, as shown in  FIG. 9A , a resin material is injected into the inner space  630  formed as the upper mold  610  and the lower mold  620  are combined through an injection hole  640 . 
     When the body part  230  including the radiator support  232  and the reinforcing part  234  is formed according to the filling of the resin material, as shown in  FIG. 9B , the radiator frame  200  is separated from the radiator frame manufacturing mold  600 . 
     As shown in  FIG. 9C , the portion of the coupling member  220  not supported by the radiator support  232  is bent in a lateral direction to form the coupling terminal portion  224 , and a free end portion of the coupling terminal portion  224  is upwardly bent to form a bent portion  226  elastically in contact with the connection pad  330 , thus completing the radiator frame  200  illustrated in  FIG. 8 . 
     In this case, preferably, the coupling portion  222  is separated from the radiator support  232  in consideration of elastic deformation of the coupling terminal portion  224 , and in this case, preferably, the coupling terminal portion  224  may be slantingly bent at an obtuse angle, rather than at a right angle with respect to the coupling portion  222 . 
     Here, the resin material may be made of a polymer-ceramic composite material including a magnetic material having a high permeability or a dielectric component having a high dielectric permittivity, in order to improve the radiation efficiency of the radiator  210 . 
     In the present exemplary embodiment, the radiator frame  200  is manufactured through injection-molding in a state in which the coupling member  220  is not bent, and the coupling member  220  is then bent twice to form the coupling terminal portion  224 , but the present invention is not limited thereto, and the coupling terminal portion  224  may be formed by bending the coupling member  220 , which is then disposed in the radiator frame manufacturing mold  600  so as to be injection-molded. 
     In detail, the coupling member  220  is vertically bent in a lateral direction primarily to foam the coupling terminal portion  224 , the free end portion of the coupling terminal portion  224  is upwardly bent secondarily to form the bent portion  226 , and the coupling terminal portion  224  and the bent portion  226  are disposed to be in contact with the lower surface and the side surface of the accommodation recess  650  of the lower mold  620 . Then, the resultant structure is filled with a resin material, the radiator frame  200  is separated, the coupling terminal part  224  is elastically deformed so as to be separated from the radiator support  232 , thus completing the radiator frame  200 . 
     The process of manufacturing the upper case  120  of the electronic device by insert injection-molding the radiator frame  200  will now be described with reference to  FIG. 10B . 
     As shown in  FIG. 10B , the radiator frame  200  may be disposed in an upper case manufacturing mold  700 , the interior of the upper case manufacturing mold  700  may be filled with a resin material to thus manufacture the upper case  120  with the radiator  210  embedded therein. 
     The upper case manufacturing mold  700  may include an upper mold  710  having an inner space  730  to be filled with the resin material to form the case frame  122  and a lower mold  720  having an inner space in which the radiator frame  200  is disposed. 
     The inner space of the lower mold  720  has substantially the same shape as that of the body part  230  including the radiator support  232  and the reinforcing part  234  to allow the radiator frame  200  to be disposed therein. Namely, an accommodation recess  750  may be formed on a lower surface of the lower mold  720  in order to accommodate the radiator support  232  and the reinforcing part  234  therein. 
     A filling preventing hole  722  may be formed on a lower surface of the accommodation recess  750  in which a portion of the coupling member  220  is inserted so that the portion for forming the coupling terminal portion  224  of the coupling member  220  cannot be filled with the resin material. 
     The radiator frame  200  is disposed in the lower mold  720 , the lower mold  720  and the upper mold  710  are combined, and the resin material is injected into the inner space  730 , which has been formed according to the combining operation, through an injection opening  740  to cover one surface of the radiator frame  200  with the resin material. The portion filled with the resin material constitutes the case frame  122 . 
     When the filling of the resin material is completed, the upper case  120  with the radiator frame  200  embedded therein is separated from the upper case manufacturing mold  700 , and as discussed above, the coupling member  220  is bent to form the coupling terminal portion  224 , thus completing the upper case  120  as illustrated in  FIG. 10A . 
     Next, the lower case  140  and the upper case  120 , in which the main circuit board-mounted main body and the smart card attached on one surface of the main body is accommodated, respectively, are combined to allow the coupling terminal part  224  and the connection pad  330  to be connected to each other. 
     When the upper case  120  and the lower case  140  are combined, the positions of the connection pad  330  and the bent portion  226  must be aligned, and the coupling terminal part  224  is elastically deformed owing to a bonding force gene rated at this time so as to be elastically brought into the connection pad  330 , whereby the coupling terminal, part  224  and the connection pad  330  are connected. 
     Meanwhile, in the present exemplary embodiment, a portion of the radiator is formed through bending, forming, and drawing, but the present invention may not be limited thereto and the radiator and the coupling member may be separately manufactured and then attached. 
     In addition, in the present exemplary embodiment, the radiator frame is manufactured by insert injection-molding the radiator and the coupling member, but the present invention is not limited thereto and a conductive material may be directly coated on the radiator frame through sputtering, printing, plating, stamping, drawing, and dispensing, in forming the radiator frame. 
     In addition, in the present exemplary embodiment, the upper case is manufactured by insert injection-molding the radiator frame, but the present invention is not limited thereto and the radiator frame may be attached to one surface of the case frame and may be variably modified according to requirements and design specifications. 
     Exemplary embodiments of the present invention have been described, which, however, are merely illustrative and a person skilled in the art world understand that various modifications and equivalents may be made therefrom. For example, the configuration of forming the radiator support or the reinforcing portion in the radiator frame is merely illustrative. Namely, the radiator support or the reinforcing portion may not be formed in the radiator frame, or only one of the radiator support and the reinforcing portion may be formed. The true technical coverage of the present invention should be determined by the appended claims. 
     As set forth above, according to exemplary embodiments of the invention, various functions can be commonly implemented in any device without altering the design of a main circuit board. 
     In addition, because there is no need to spare a space for a matching circuit or space for the coupling member for coupling a coupling member for coupling the antenna. 
     While the present invention has been shown and described in connection with the exemplary embodiments, it will be apparent to those skilled in the art that modifications and variations can be made without departing from the spirit and scope of the invention as defined by the appended claims.