Title :
Mode Switching in an Active Antenna Using Reactive FET
Author :
Minegishi, Masahiko ; Lin, Jenshan ; Itoh, Tatsuo ; Kawasaki, Shigeo
Author_Institution :
Electrical Engineering Department, UCLA, Los Angeles, CA 90024-1594, U.S.A.
Abstract :
In this paper, a new technique of realizing the mode switching in an active antenna by using reactive FET is presented. The reactive FET switches the oscillation mode in a two-element active array using Gunn devices at 12.45GHz. One-way switching is observed by controlling the bias voltage of reactive FET. Two-way switching is observed by controlling the bias voltage of Gunn devices.
Keywords :
Antenna arrays; Antenna radiation patterns; Communication switching; Frequency; Gunn devices; Microstrip antennas; Microwave FETs; Microwave circuits; Positron emission tomography; Voltage control;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337364
