Title :
Variable Coupling Directional Couplers Using Varactor Diodes
Abstract :
A microstrip variable coupling directional couplers for 4 GHz band have been proposed and tested. By changing the junction capacitances of the varactor diodes, the coupling varies from 4 dB to 20 dB, and the directivity varies from 16 dB to 29 dB. Available frequency range is from 2.7 GHz to 5.3 GHz.
Keywords :
Capacitance; Coupling circuits; Diodes; Directional couplers; Frequency measurement; Insertion loss; Microstrip; Testing; Varactors; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1982 IEEE MTT-S International
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/MWSYM.1982.1130742
