An automated matching network incorporating a six-port reflectometer

Walter Wayne
In this thesis an automated matching network is investigated as a means to reduce mismatch loss in circuits whose impedance characteristics vary during operation. The automated matching network incorporates a six-port network to measure impedance and a tunable circuit is implemented using varactor diodes to provide continuously variable impedances. A novel implementation for two-port measurements using a single reflectometer is presented. The thesis concentrates on variable gain amplifier applications as these are common in wireless...
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