Analysis on UHF SAR antenna

Author

Li, Ping ; Zhang, Guang-hua ; Han, Shuang-shuang

Author_Institution

Coll. of the Chinese People Armed Police Force, Xi´´an, China

Volume

4

fYear

2005

fDate

4-7 Dec. 2005

Abstract

To meet the requirements of miniaturization, high gain and wideband for UHF SAR, this paper analyses gain loss produced by reducing back cavity of short back-fire antenna. Based on pottel´s formula, gain loss for the cover of reflecting disc is computed. A new approach is presented, that is H-shaped two-element array antenna replaces short back-fire antenna. This structure can expanded bandwidth and shorten antenna structure. This paper also compares miniature antenna´s structure in the overseas. Our study indicates that making use of wide dipole and microstrip can offer lightweight, small structure, high gain and wide-band UHF SAR antenna on small platforms.

Keywords

UHF antennas; dipole antenna arrays; microstrip antennas; radar antennas; synthetic aperture radar; H-shaped antenna; UHF SAR antenna; gain loss analysis; microstrip antenna; miniature antenna structure; pottel formula; short back-fire antenna; two-element array antenna; wide dipole antenna; Antenna arrays; Antenna feeds; Antennas and propagation; Bandwidth; Broadband antennas; Dipole antennas; Fires; Microstrip antenna arrays; Microstrip antennas; UHF antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606834

Filename

1606834