Patent ID: 7194241

Claim:
An antenna switching circuit capable of coupling a plurality of ports to an antenna, said antenna switching circuit comprising: a first switch activated by a first control signal for establishing a connection between a first transmit port and said antenna; a second switch activated by a second control signal for establishing a connection between a second transmit port and said antenna; a third switch activated by a third control signal for establishing a connection between a first receive port and said antenna; a fourth switch activated by said third control signal for establishing a connection between a second receive port and said antenna, wherein said first receive port and said second receive port are simultaneously connected to said antenna when said third switch and said fourth switch are activated by said third control signal; a fifth switch activated by a fourth control signal for establishing a connection between a third receive port and said antenna; a sixth switch activated by said fourth control signal for establishing a connection between a fourth receive port and said antenna, wherein said third receive port and said fourth receive port are simultaneously connected to said antenna when said fifth switch and said sixth switch are activated by said fourth control signal.