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US 12,712,494 B2Granted
Concurrent matching transceiver for power amplifier
AssigneeQUALCOMM Incorporated
InventorsDayasagar Gaade, Hai Huang, Wen Li
Life of this patent
Estimating the term…
Abstract
Certain aspects of the present disclosure are directed towards techniques and apparatus for implementing concurrent matching for a transmitter and a receiver. An example transceiver may include a first amplifier, a second amplifier, a third amplifier, a first transformer, a second transformer, a first switch, and a third transformer. The first switch is coupled between a terminal of a secondary winding of the first transformer and a reference potential node.
Claims20
A transceiver comprising:
- a first amplifier;
- a second amplifier;
- a third amplifier;
- a first transformer comprising:
- a first input and a second input coupled to a first output and a second output of the first amplifier;
- a primary winding coupled between the first input and the second input of the first transformer;
- and
- a secondary winding inductively coupled to the primary winding of the first transformer;
- a second transformer comprising:
- a first input and a second input coupled to a first output and a second output of the second amplifier;
- a primary winding coupled between the first input and the second input of the second transformer;
- and
- a secondary winding inductively coupled to the primary winding and coupled between a first terminal of the secondary winding of the first transformer and a reference potential node;
- a first switch coupled between the first terminal of the secondary winding of the first transformer and the reference potential node;
- and
- a third transformer comprising a primary winding coupled between a second terminal of the secondary winding of the first transformer and a first input of the third amplifier.
13 more elements
A wireless device, comprising:
- an antenna;
- and
- a transceiver coupled to the antenna, the transceiver comprising:
- a first amplifier;
- a second amplifier;
- a third amplifier;
- a first transformer comprising:
- a first input and a second input coupled to a first output and a second output of the first amplifier;
- a primary winding coupled between the first input and the second input of the first transformer;
- and
- a secondary winding inductively coupled to the primary winding of the first transformer;
- a second transformer comprising:
- a first input and a second input coupled to a first output and a second output of the second amplifier;
- a primary winding coupled between the first input and the second input of the second transformer;
- and
- a secondary winding inductively coupled to the primary winding and coupled between a first terminal of the secondary winding of the first transformer and a reference potential node;
- a first switch coupled between the first terminal of the secondary winding of the first transformer and the reference potential node;
- and
- a third transformer comprising a primary winding coupled between a second terminal of the secondary winding of the first transformer and a first input of the third amplifier.
16 more elements
A method for wireless communication, comprising:
- during a transmit mode, coupling an output from at least one of a first amplifier or a second amplifier to a radio frequency (RF) input/output (I/O) (RFIO) pin within a transceiver;
- and
- during a receive mode, coupling an input from the RFIO pin to a third amplifier within the transceiver via at least one of a first path or a second path within the transceiver, wherein the transceiver comprises:
- the first amplifier;
- the second amplifier;
- the third amplifier;
- a first transformer comprising:
- a first input and a second input coupled to a first output and a second output of the first amplifier;
- a primary winding coupled between the first input and the second input of the first transformer;
- and
- a secondary winding inductively coupled to the primary winding of the first transformer;
- a second transformer comprising:
- a first input and a second input coupled to a first output and a second output of the second amplifier;
- a primary winding coupled between the first input and the second input of the second transformer;
- and
- a secondary winding inductively coupled to the primary winding and coupled between a first terminal of the secondary winding of the first transformer and a reference potential node;
- a first switch coupled between the first terminal of the secondary winding of the first transformer and the reference potential node;
- and
- a third transformer comprising a primary winding coupled between a second terminal of the secondary winding of the first transformer and a first input of the third amplifier.
16 more elements
Dependencies are inferred from the claim text.