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1. (WO2017062195) DUAL-INPUT, HIGH POWER HANDLING, POWER COMBINING LNA FOR FULL DUPLEX COMMUNICATIONS SYSTEMS

Pub. No.:    WO/2017/062195    International Application No.:    PCT/US2016/053305
Publication Date: Fri Apr 14 01:59:59 CEST 2017 International Filing Date: Sat Sep 24 01:59:59 CEST 2016
IPC: H04B 1/525
H03F 3/193
H03F 3/42
H03F 3/45
Applicants: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
Inventors: RYAN, David
Title: DUAL-INPUT, HIGH POWER HANDLING, POWER COMBINING LNA FOR FULL DUPLEX COMMUNICATIONS SYSTEMS
Abstract:
An apparatus includes a first gain stage, a combiner and a second gain stage. The first gain stage may be configured to amplify a receive signal acquired from a circuit to generate an intermediate signal. The combiner may be configured to combine the intermediate signal with a cancellation signal to generate a combined signal. The cancellation signal is generally derived from a transmit signal a portion of which appears in the receive signal through the circuit. The second gain stage may be configured to amplify the combined signal to generate an output signal.