Title :
An active inverted patch antenna with wideband varactor-tuned capability
Author :
Lu Fan ; Kai Chang
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A varactor-tuned inverted circular patch antenna has been developed with a power variation of /spl plusmn/1.0 dB over a 13 percent tuning bandwidth. A simple equivalent circuit has been used to model the active antenna, and the calculated results agree well with the experimental results. The circuit should have many commercial applications in wireless communications, radar, and sensors.
Keywords :
Gunn diodes; active antennas; antenna radiation patterns; antenna theory; equivalent circuits; microstrip antennas; tuning; varactors; active inverted patch antenna; circular patch antenna; equivalent circuit; model; wideband varactor-tuned capability; Broadband antennas; Circuit optimization; Diodes; Frequency; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Phased arrays; Tuning; Varactors;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.511178
