Broadband Leaky-Wave Antenna Fed With Composite Right/Left-Handed Transmission Line

Author

Miyama, Yoshihiro ; Wakino, Kikuo ; Lin, Yu-De ; Kitazawa, Toshihide

Author_Institution

Dept. of Electr. & Electron. Eng., Ritsumeikan Univ., Kusatsu

Volume

56

Issue

11

fYear

2008

Firstpage

3585

Lastpage

3589

Abstract

The broadband feeder line is investigated to exploit the broadband nature of leaky-wave antenna. The feeding structure is realized by inserting the composite right/left-handed transmission line (CRLH-TL) into the feeder. Microstrip CRLH-TL feeder line is designed for the microstrip leaky-wave antenna. The microstrip leaky-wave antenna system shows a return loss of less than 9.5 dB (VSWR < 2.0) from 6.2 GHz to 9.3 GHz in the measured result, and exhibits the beam-steering nature as frequency is varied.

Keywords

antenna feeds; beam steering; broadband antennas; leaky wave antennas; microstrip antennas; microstrip lines; transmission lines; beam-steering; broadband feeder line; composite left-handed transmission line; composite right-handed transmission line; frequency 6.2 GHz to 9.3 GHz; microstrip feeder line; microstrip leaky-wave antenna; Antenna feeds; Antenna measurements; Attenuation; Bandwidth; Broadband antennas; Frequency; Leaky wave antennas; Microstrip antennas; Power transmission lines; Transmission line measurements; Broadband antenna; composite right/left-handed transmission line; leaky-wave; spectral domain approach;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2008.2005549

Filename

4685924