Title :
Experimental study of gain enhancement of dielectric loaded antennas with a ground plane
Author :
Tsugawa, Takuya ; Sugio, Yoshihiko ; Makimoto, Toshio
Author_Institution :
Dept. of Electron., Osaka Inst. of Technol., Japan
Abstract :
The authors describe an experimental study of gain enhancement and input characteristics for finite dielectric loaded antennas with a low dielectric constant. They show that, in the case of a rectangular parallelepiped dielectric, gain is maximum if the dimensions of the rectangular parallelepiped are approximately identical. The aperture efficiency exceeds a few hundred percent under some conditions. Dielectric loading leads to a spreading of the frequency bandwidth, and beam tilting results from deviation of the dielectric center position to the antenna.<>
Keywords :
antenna radiation patterns; dielectric-loaded antennas; aperture efficiency; beam tilting; dielectric loaded antennas; finite antennas; gain enhancement; ground plane; input characteristics; low dielectric constant; radiation patterns; rectangular parallelepiped dielectric; Anechoic chambers; Antenna radiation patterns; Aperture antennas; Bandwidth; Dielectric constant; Frequency; High-K gate dielectrics; Loaded antennas; Patch antennas; Permittivity;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134968
