Bidirectional transceiver circuits
AssigneeAvago Technologies International Sales Pte. Limited
InventorsBevin George Perumana, Tirdad Sowlati, Saikat Sarkar, Seunghwan Yoon
Life of this patent
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Abstract
A bidirectional time-division duplexing transceiver circuit includes a first and a second bidirectional phase-shift circuit, and a bidirectional amplifier circuit including a first amplifier circuit and a second amplifier circuit. The first amplifier circuit and the second amplifier circuit are coupled via double-pole-double-throw (DPDT) switches to radio-frequency (RF) antennas and the first and the second bidirectional phase-shift circuits. The (DPDT) switches enable the first amplifier circuit and the second amplifier circuit to be operable simultaneously as transmit (TX) path amplifiers in a first time slot and as a receive (RX) path amplifiers in a second time slot.
Claims20
A bidirectional time-division duplexing transceiver circuit, the transceiver circuit comprising:
- a first and a second bidirectional phase-shift circuit;
- and
- a bidirectional amplifier circuit including a first amplifier circuit and a second amplifier circuit, wherein the first amplifier circuit and the second amplifier circuit are connected to double-pole-double-throw (DPDT) switches, wherein a first DPDT switch is configured to connect the first amplifier circuit to a first radio-frequency (RF) antenna and a second DPDT switch is configured to connect the second amplifier circuit to a second RF antenna, and wherein the first and the second bidirectional phase-shift circuit and the DPDT switches are configured to enable the first amplifier circuit and the second amplifier circuit to be operable simultaneously as transmit (TX) path amplifiers in a first time slot and as a receive (RX) path amplifiers in a second time slot.
A bidirectional time-division duplexing transceiver circuit, the transceiver circuit comprising:
- a plurality of double-slice transceiver circuits;
- and
- a main active power combiner-divider circuit, wherein a double-slice transceiver circuit of the plurality of double-slice transceiver circuits comprises:
- a first and a second splitter-combiner circuit;
- a first bidirectional phase-shift circuit coupled to the first splitter-combiner circuit;
- a second bidirectional phase-shift circuit coupled to the second splitter-combiner circuit;
- a first amplifier circuit coupled via a first double-pole-double-throw (DPDT) switch to the first bidirectional phase-shift circuit and coupled via a second DPDT switch to a first radio-frequency (RF) antenna;
- and
- a second amplifier circuit coupled via the first DPDT switch to a second RF antenna and coupled via the second DPDT switch to the second bidirectional phase-shift circuit, wherein the first and the second splitter-combiner circuits are configured to couple the double-slice transceiver circuit and another double-slice transceiver circuit of the plurality of double-slice transceiver circuits to the main active power combiner-divider circuit.
A method of providing a bidirectional time-division duplexing transceiver circuit, the method comprising:
- providing a first and a second bidirectional phase-shift circuit;
- providing a bidirectional amplifier circuit including a first amplifier circuit and a second amplifier circuit;
- connecting the first amplifier circuit and the second amplifier circuit via double-pole-throw (DPDT) switches to radio-frequency (RF) antennas and the first and the second bidirectional phase-shift circuit by configuring a first DPDT switch to connect the first amplifier circuit to a first radio-frequency (RF) antenna and configuring a second DPDT switch to connect the second amplifier circuit to a second RF antenna;
- and
- configuring the DPDT switches to enable the first amplifier circuit and the second amplifier circuit to be operable simultaneously as transmit (TX) power amplifiers and receive (RX) low-noise amplifiers (LNAs) in two different time slots.
Dependencies are inferred from the claim text.