Title :
The radiation characteristics of a ferrite-tuned cavity-backed slot antenna
Author :
Kokotoff, D.M. ; El-Sharawy, E.-B. ; Birtcher, Craig R.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
The cavity-backed slot (CBS) antenna, is a lightweight, conformal radiator, and is considered efficient due to its electrical size and material loading within the cavity. Having these characteristics, the CBS antenna is an ideal choice for experimentation as a tuneable antenna. The concept of using a ferrite to magnetically tune a CBS antenna is not new; however, the literature lacks any substantial work to verify the capability of such an antenna. The present study focuses on experimentally examining the characteristics of a ferrite-tuned cavity-backed slot antenna utilizing magnetostatic wave modes.
Keywords :
antenna radiation patterns; ferrite-loaded waveguides; magnetostatic waves; slot antennas; 1 to 2 GHz; CBS antenna; UHF; ferrite-tuned cavity-backed slot antenna; lightweight conformal radiator; magnetostatic wave modes; radiation characteristics; tuneable antenna; Antenna measurements; Antenna radiation patterns; Ferrites; Gain measurement; Magnetic materials; Magnetostatic waves; Reflector antennas; Resonance; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530080
