Characterization of circularly polarized square cavity backed antennas

Author

Colburn, J.S. ; Rahmat-Samii, Y.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

4

fYear

1997

fDate

13-18 July 1997

Firstpage

2194

Abstract

The growth of personal wireless communications systems has generated significant interest in the development of small, broad bandwidth and broad radiation pattern antennas for mobile terminal applications. In addition to the desired circuit and radiation properties of the antennas, physically non-obtrusive antennas are required for mobile terminal applications. In this presentation, low profile cavity backed circularly polarized antennas are studied. Results for a small four arm straight wire segment spiral antenna and two different air dielectric patch radiators are compared and contrasted. Emphasis is placed on achieving circularly polarized radiation over broad angular ranges and two frequency bands.

Keywords

antenna radiation patterns; electromagnetic wave polarisation; land mobile radio; microstrip antennas; mobile antennas; mobile satellite communication; personal communication networks; satellite antennas; spiral antennas; wire antennas; 1.4 to 3.4 GHz; air dielectric patch radiators; broad radiation pattern antennas; circularly polarized radiation; circularly polarized square cavity backed antennas; frequency band; mobile terminal; nonobtrusive antennas; personal wireless communications systems; small broad bandwidth antenna; small four arm straight wire segment spiral antenna; Antenna radiation patterns; Bandwidth; Circuits; Dielectrics; Frequency; Mobile antennas; Polarization; Spirals; Wire; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest

Conference_Location

Montreal, Quebec, Canada

Print_ISBN

0-7803-4178-3

Type

conf

DOI

10.1109/APS.1997.625404

Filename

625404