Characterization of leaky wave antenna and active gain enhancement

Author

Chen, Min ; Chang, Howard Z. ; Houshmand, Bijan ; Itoh, Tatsuo

Author_Institution

Department of Electrical Engineering, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA

Volume

2

fYear

1996

fDate

6-13 Sept. 1996

Firstpage

579

Lastpage

582

Abstract

The leaky wave antenna has been characterized using the 3-D FDTD method, and its employment of the active gain enhancement scheme has been experimentally investigated. The structure analyzed in the FDTD analysis is a rectangular dielectric rod periodically loaded with metal strips, and launching effects are included into the analysis. In the active gain enhancement experiment, the antenna is made of a periodically loaded microstrip line with active gain elements placed to compensate for radiation as well as waveguide loss. This novel antenna possesses a larger effective aperture, higher gain, and narrower beam width as compared to a passive antenna with similar dimensions. Results of the FDTD analysis and active gain enhancement investigation are confirmed by experiments.

Keywords

Antennas and propagation; Aperture antennas; Dielectric losses; Dielectric substrates; Finite difference methods; Leaky wave antennas; Loaded antennas; Microstrip antennas; Propagation losses; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1996. 26th European

Conference_Location

Prague, Czech Republic

Type

conf

DOI

10.1109/EUMA.1996.337647

Filename

4138696