Title :
A slot antenna with electronically tunable length
Author :
Kawasaki, S. ; Itoh, T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
The authors describe a 1 lambda slot antenna with a layered structure loaded with two 1-port reactive FET components electromagnetically. By changing bias voltages, the reactance of the FETs varies and the length of the slot is tuned electronically. The resonant points of S/sub 11/ measurements were shifted over a range of 1 GHz around 10 GHz. The antenna patterns are essentially unchanged in spite of this electronic tuning.<>
Keywords :
microstrip antennas; tuning; 1-port reactive FET components; 10 GHz; S/sub 11/ measurements; SHF; antenna patterns; bias voltages; electronically tunable length; layered structure; reactance; slot antenna; Antenna accessories; FET circuits; Feeds; Frequency; Impedance; Loaded antennas; MESFETs; Resonance; Slot antennas; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174790
