Diversity antenna apparatus of mobile terminal and implementation method thereof

Abstract

Provided is a diversity antenna apparatus of a mobile terminal including a main antenna and a sub-antenna for performing an auxiliary function using a separate sub-antenna processing module, and an implementation method thereof. When the auxiliary function is not performed, a controller of the mobile terminal disconnects the sub-antenna from the sub-antenna processing module and electrically connects the sub-antenna to an RF module through a switch such that the sub-antenna operates as a diversity antenna.

1 - 14 . (canceled) 
     
     
         15 . A portable communication device comprising:
 a first antenna adapted to support a cellular communication;   a second antenna adapted to support a wireless local area communication including a first wireless local area communication and a second wireless local area communication;   first circuitry adapted to support the cellular communication;   second circuitry adapted to support the first wireless local area communication;   third circuitry adapted to support the second wireless local area communication; and   a processor configured to:
 identify a request for a function; 
 couple the second antenna with the second circuitry based on at least a first determination that the function corresponds to a first specified function; 
 couple the second antenna with the third circuitry based on at least a second determination that the function corresponds to a second specified function; and 
 perform, in response to the request for the function, the function using a corresponding one of the second circuitry and the third circuitry coupled with the second antenna. 
   
     
     
         16 . The portable communication device of  claim 15 , wherein the processor is further configured to:
 perform the identifying while the cellular communication is established between the portable communication device and an external electronic device.   
     
     
         17 . The portable communication device of  claim 15 , wherein the processor is further configured to:
 selectively couple the first antenna with one of the second circuitry and the third circuitry based on at least the request for the function.   
     
     
         18 . The portable communication device of  claim 15 , wherein the processor is further configured to:
 perform the coupling of the second antenna with one of the second circuitry and the third circuitry while the first antenna is coupled with the first circuitry.   
     
     
         19 . The portable communication device of  claim 15 , wherein the controller is further configured to:
 one of receive and transmit a cellular signal via the first antenna and a bluetooth signal via the second antenna.   
     
     
         20 . A portable communication device comprising:
 first circuitry adapted to support a cellular communication;   second circuitry adapted to support a first wireless local area communication;   third circuitry adapted to support a second wireless local area communication;   a first antenna adapted to be coupled with the first circuitry; and   a second antenna adapted to be selectively coupled with one of the second circuitry and the third circuitry.   
     
     
         21 . The portable communication device of  claim 20 , wherein the first antenna is physically connected with the first circuitry. 
     
     
         22 . The portable communication device of  claim 20 , further comprising a switch adapted to selectively couple the second antenna with one of the second circuitry and the third circuitry. 
     
     
         23 . The portable communication device of  claim 22 , further comprising a controller adapted to control the switch. 
     
     
         24 . The portable communication device of  claim 23 , wherein the controller is configured to:
 operate the first antenna as a diversity antenna with respect to the function.   
     
     
         25 . The portable communication device of  claim 22 , further comprising a matching circuit adapted to adjust a frequency to be used by one of the first antenna and the second antenna. 
     
     
         26 . A portable communication device comprising:
 an antenna;   first circuitry adapted to support a first wireless local area communication using a first frequency band;   second circuitry adapted to support a second wireless local area communication using a second frequency band; and   a processor configured to:
 identify a request for a function; 
 couple the antenna with the first circuitry based on at least a first determination that the function corresponds to a first specified function; 
 couple the antenna with the second circuitry based on at least a second determination that the function corresponds to a second specified function; and 
 perform, in response to the request for the function, the function using a corresponding one of the first circuitry and the second circuitry coupled with the antenna. 
   
     
     
         27 . The portable communication device of  claim 26 , wherein the controller is further configured to:
 identify a frequency band to be used with respect to the function;   perform the first determination if the frequency band corresponds to the first frequency band; and   perform the second determination if the frequency band corresponds to the second frequency band.   
     
     
         28 . The portable communication device of  claim 26 , wherein the first specified function comprises one of a bluetooth function, a wireless fidelity function, and a combination thereof, and the second specified function comprises one of a wireless local loop function, a global positioning system function, a near field communication function, and a combination thereof. 
     
     
         29 . A portable communication device comprising:
 first circuitry adapted to support a first wireless local area communication;   second circuitry adapted to support a second wireless local area communication; and   an antenna adapted to be selectively coupled with one of the first circuitry and the second circuitry.   
     
     
         30 . The portable communication device of  claim 29 , further comprising a switch adapted to selectively couple the antenna with one of the second circuitry and third circuitry. 
     
     
         31 . The portable communication device of  claim 29 , further comprising a processor adapted to control the switch. 
     
     
         32 . The portable communication device of  claim 29 , further comprising third circuitry adapted to support a cellular communication and another antenna adapted to be coupled with the third circuitry. 
     
     
         33 . The portable communication device of  claim 32 , wherein the another antenna is physically connected with the third circuitry. 
     
     
         34 . The portable communication device of  claim 29 , wherein the first wireless local area communication comprises one of a bluetooth communication and a wireless fidelity communication, and the second wireless local area communication comprises one of a near field communication and a wireless local loop communication.