Characterization and Design of Cylindrical Microstrip Leaky-Wave Antennas

Author

Lin, Lieh-Chuan ; Miyagawa, Hayato ; Kitazawa, Toshihide ; Hwang, Ruey Bing ; Lin, Yu-De

Author_Institution

Nat. Chiao Tung Univ., Hsinchu

Volume

56

Issue

7

fYear

2008

fDate

7/1/2008 12:00:00 AM

Firstpage

1853

Lastpage

1859

Abstract

The spectral-domain approach is applied for the analysis and the design of the cylindrical microstrip leaky-wave antenna. The first higher-order leaky-mode is thoroughly investigated. We perform the well-known spectral-domain approach and Galerkin´s method to acquire the complex propagation constants of leaky modes, which are verified with results obtained by the scattering-parameter extraction technique. Two practical antennas are designed and implemented. Measured return loss and radiation patterns show a good performance of these cylindrical antennas, compared to that of the planar ones.

Keywords

Galerkin method; antenna radiation patterns; antenna theory; leaky wave antennas; microstrip antennas; Galerkin method; complex propagation constants; cylindrical antennas; first higher-order leaky-mode; leaky-wave antennas; microstrip antennas; radiation patterns; return loss; scattering-parameter extraction; spectral-domain approach; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Leaky wave antennas; Loss measurement; Microstrip antennas; Moment methods; Performance loss; Propagation constant; Scattering; Cylindrical microstrip; leaky-wave; spectral-domain approach (SDA);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2008.924693

Filename

4558308