CPC H04L 5/26 (2013.01) [H04B 1/44 (2013.01); H04L 5/14 (2013.01)] | 8 Claims |
1. A system comprising:
at least four antennas that support communication in a first frequency band and a second frequency band;
an RF modem module comprising:
a transceiver port to transmit uplink communications and receive downlink communications in the first frequency band and the second frequency band; and
at least three receive ports to receive respective communications in the first frequency band and the second frequency band;
transceiver circuitry coupling the at least four antennas to the RF modem module, the transceiver circuitry comprising:
a transceiver chain that comprises:
a first switch with a common terminal coupled to the transceiver port, a first switched terminal coupled to a first of the four antennas through a first bandpass filter for the first frequency band, and a second switched terminal coupled to the first antenna through a second bandpass filter for the second frequency band;
a second switch with a common terminal coupled to the transceiver port, a first switched terminal coupled to the first antenna through the first bandpass filter, and a second switched terminal coupled to the first antenna through the second bandpass filter;
a first receive chain that comprises a third switch with a common terminal coupled to a second receive port, a first switched terminal coupled to a second antenna through a third bandpass filter for the first frequency band, and a second switched terminal coupled to the second antenna through a fourth bandpass filter for the second frequency band;
a second receive chain that comprises a fourth switch with a common terminal coupled to a third receive port, a first switched terminal coupled to a third antenna through a fifth bandpass filter for the first frequency band, and a second switched terminal coupled to the third antenna through a sixth bandpass filter for the second frequency band; and
a third receive chain that comprises a fifth switch with a common terminal coupled to a fourth receive port, a first switched terminal coupled to a fourth antenna through a seventh bandpass filter for the first frequency band, and a second switched terminal coupled to the fourth antenna through an eighth bandpass filter for the second frequency band, the transceiver path further comprising:
a sixth switch coupled between the first switch, the second switch, and the first bandpass filter, the sixth switch comprising a first switched terminal coupled to the first switched terminal of the first switch, a second switched terminal coupled to the first switched terminal of the second switch, and a common terminal coupled to the first bandpass filter; and
a seventh switch coupled between the first switch, the second switch, and the second bandpass filter, the seventh switch comprising, a first switched terminal coupled to the second switched terminal of the first switch, a second switched terminal coupled to the second switched terminal of the second switch, and a common terminal coupled to the second bandpass filter.
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