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US 12,562,771 B2Granted
Transceiver and wireless communication apparatus including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsYoung Min Kim, Hongjong Park, Sangmin Yoo, Jongwon Yun
Life of this patent
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Abstract
A transceiver includes a phase shifter configured to adjust phase of a receive signal input at a first node of the phase shifter to provide an output receive signal output from a second node of the phase shifter in a receive mode, and to adjust phase of a transmit signal input at the first node to provide an output transmit signal at the second node in a transmit mode.
Claims18
A transceiver comprising:
- a phase shifter configured to:
- adjust phase of a receive signal input at a first node of the phase shifter to provide an output receive signal at a second node of the phase shifter in a receive mode;
- and
- adjust phase of a transmit signal input at the first node to provide an output transmit signal at the second node in a transmit mode,
- wherein the phase shifter comprises:
- a coupler configured to output the receive signal and the transmit signal input to an input terminal as single ended signals having a phase difference with respect to each other;
- variable gain amplifiers configured to amplify and output a corresponding one of the single ended signals, which is output from an output terminal of the coupler;
- and
- at least one balun between the coupler and the variable gain amplifiers or between the variable gain amplifiers and the second node.
6 more elements
A transceiver comprising:
- a receive chain configured to receive a receive signal of a first frequency band through an antenna;
- and a transmit chain configured to transmit a transmit signal through an antenna, wherein the receive chain and the transmit chain share a phase shifter, wherein the receive chain comprises a receive mixer configured to downconvert the receive signal output from the phase shifter into a baseband receive signal in a receive mode;
- wherein the transmit chain comprises a transmit mixer configured to upconvert the baseband receive signal to thereby generate the transmit signal in a transmit mode;
- and wherein the transceiver further comprises:
- a first switch configured to selectively connect an input node of the phase shifter to a low noise amplifier or the transmit mixer;
- and a second switch configured to selectively connect an output node of the phase shifter to the receive mixer or a power amplifier, wherein the phase shifter comprises:
- a coupler configured to output the receive signal and the transmit signal input to an input terminal as single ended signals having a phase difference with respect to each other;
- variable gain amplifiers configured to amplify and output a corresponding one of the single ended signals, which is output from an output terminal of the coupler;
- and at least one balun between the coupler and the variable gain amplifiers or between the variable gain amplifiers and the output node.
6 more elements
A wireless communication apparatus comprising:
- a transceiver configured to operate in one of a receive mode or a transmit mode at a given time, in response to a mode signal;
- and
- a communication modem configured to generate the mode signal and provide the mode signal to the transceiver,
- wherein the transceiver comprises a phase shifter configured to adjust phase of a receive signal input at a first node of the phase shifter to provide an output receive signal at a second node of the phase shifter in the receive mode, and to adjust phase of a transmit signal input at the first node to provide an output transmit signal at the second node in the transmit mode, and
- wherein the shared vector sum passive phase shifter comprises:
- a coupler configured to output the receive signal and the transmit signal input to an input terminal as single ended signals having a phase difference with respect to each other;
- variable gain amplifiers configured to amplify and output a corresponding one of the single ended signals, which is output from an output terminal of the coupler;
- and
- at least one balun between the coupler and the variable gain amplifiers or between the variable gain amplifiers and the second node.
6 more elements
Dependencies are inferred from the claim text.