Title :
Millimeter-wave dielectric leaky-wave antennas
Author :
Lee, Chung-Yi ; Basu, Ananjan ; Liao, John ; Wong, June Siey-Mun ; Houshmand, Bijan ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A dielectric leaky-wave antenna with a new perturbation scheme is developed. The attenuation constant with different gap width between metal patches is determined experimentally. The dielectric waveguide used is an anisotropic sapphire rod. The conventional effective dielectric constant (EDC) method is modified to calculate the unperturbed propagation constant and then used to predict the main beam position. The experimental data agree quite well with that of the simulation
Keywords :
dielectric waveguides; leaky wave antennas; millimetre wave antennas; permittivity; anisotropic sapphire rod; attenuation constant; dielectric waveguide; effective dielectric constant method; experimental data; gap width; main beam position prediction; metal patches; millimeter wave dielectric leaky-wave antennas; perturbation scheme; simulation; unperturbed propagation constant; Anisotropic magnetoresistance; Antennas and propagation; Attenuation; Dielectric constant; Dielectric losses; Dielectric substrates; Directive antennas; Frequency; Leaky wave antennas; Propagation constant;
Conference_Titel :
Signals, Systems, and Electronics, 1995. ISSSE '95, Proceedings., 1995 URSI International Symposium on
Conference_Location :
San Francisco
Print_ISBN :
0-7803-2516-8
DOI :
10.1109/ISSSE.1995.497925
