Invention Grant
- Patent Title: Transmit/receive switching circuit
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Application No.: US15997575Application Date: 2018-06-04
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Publication No.: US10693231B2Publication Date: 2020-06-23
- Inventor: Jeremy Dunworth , Aliakbar Homayoun , Andrzej Partyka
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Seyfarth Shaw LLP/QUALCOMM Incorporated
- Main IPC: H01Q5/335
- IPC: H01Q5/335 ; H04B1/44 ; H03F1/02 ; H03F1/56 ; H03F3/21 ; H03F3/68 ; H03G1/00 ; H04B1/525 ; H03H7/48 ; H01Q1/22 ; H01Q21/28 ; H01Q21/30 ; H01Q1/24 ; H01Q21/06 ; H04B1/00

Abstract:
A transmit/receive switching circuit implementation reduces transmitting/receiving switching losses in a transceiver during different modes of operation. The implementation includes connecting a low noise amplifier and a power amplifier in accordance with a shunt configuration in the transceiver. The implementation also includes disabling the power amplifier to achieve a high impedance state by grounding an output stage bias and enabling the low noise amplifier and disabling one or more transistors connected to a path between the low noise amplifier and the power amplifier during a receive mode.
Public/Granted literature
- US20190081596A1 TRANSMIT/RECEIVE SWITCHING CIRCUIT Public/Granted day:2019-03-14
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