An improved hat-shaped cavity-backed Archimedean spiral antenna

Author

Xuxu Ge ; Guang Fu ; Xi Chen ; Yaojun Bai

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Antennas & Microwaves Xidian Univ., Xi´an, China

fYear

2012

fDate

22-26 Oct. 2012

Firstpage

97

Lastpage

100

Abstract

A novel Archimedean spiral antenna is designed and researched. The antenna is configured with a hat-shaped reflecting cavity and chip-resistor loads to improve the half power beam width and axial ratio. In the paper, the designing methodology and theoretical analysis are presented. The results show that the antenna has the broad beam width that more than 80° and low axial ratio that less than 4dB. They are better than those of traditional abnormal cavity-backed Archimedean spiral antennas. The designed antenna can be used in the ultra-wideband communication system on the mobile carrier.

Keywords

spiral antennas; ultra wideband antennas; ultra wideband communication; axial ratio; broad beam width; chip resistor loads; half power beam width; hat shaped cavity backed Archimedean spiral antenna; hat shaped reflecting cavity; mobile carrier; ultra wideband communication system; Antenna measurements; Broadband antennas; Cavity resonators; Loaded antennas; Microwave antennas; Spirals;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on

Conference_Location

Xian

Print_ISBN

978-1-4673-1799-3

Type

conf

DOI

10.1109/ISAPE.2012.6408717

Filename

6408717