Duplexer-less transceiver and communication apparatus
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHenrik Sjöland, Stefan Andersson, Tobias Tired, Johan Wernehag
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Abstract
A duplexer-less transceiver arrangement is disclosed. The transceiver comprises a receiver configured for frequency-division duplex communication with a communication network; a transmitter configured for frequency-division duplex communication with the communication network; an antenna port for connecting to an antenna; a balancing impedance circuit arranged to provide an adaptive impedance arranged to mimic the impedance at the antenna port; and an impedance network differentially connecting the receiver, transmitter, antenna port and balancing impedance circuit, wherein the impedance network includes a cross-connection.
Claims13
A transceiver arrangement, comprising:
- a differential receiver configured for frequency-division duplex communication with a communication network, the receiver having a first input and a second input;
- a differential transmitter configured for frequency-division duplex communication with the communication network, the transmitter having a first output and a second output;
- a differential antenna port for connecting the transmitter and the receiver to an antenna, the antenna port having a first node and a second node;
- a balancing impedance circuit arranged to provide an adaptive impedance, the balancing impedance circuit having a first node and a second node;
- an impedance network, arranged to:
- connect the first output of the transmitter and the first input of the receiver to the first node of the antenna port;
- connect the second output of the transmitter and the second input of the receiver to the second node of the antenna port;
- connect the first output of the transmitter and the second input of the receiver to the first node of the balancing impedance circuit;
- connect the second output of the transmitter and the first input of the receiver to the second node of the balancing impedance circuit.
Dependencies are inferred from the claim text.