Computer-aided design of four wire dual-mode spiral antenna

Author

Xiaorong, Yan ; Xiaoguo, Liu ; Guangyou, Fang

Author_Institution

China Res. Inst. of Radio Wave Propagation, Shandong, China

fYear

2000

fDate

15-18 Aug. 2000

Firstpage

26

Lastpage

28

Abstract

A dual-mode broadband antenna specially designed to simultaneously provide low and high angle radiation patterns within a bandwidth of 5 to 30 MHz relative to a horizontal ground plane is described. This particular antenna utilizes four wire radiators in the form of an inverted conical log-spiral supported in a vertically extending fashion a predetermined distance above the horizontal ground plane. The spiral antenna is theoretically analyzed and its current integral equation is given. For purposes of computer aided design of the spiral antenna, numerical calculation is applied using Galerkin´s method. Finally, the numerical results are given and discussed.

Keywords

CAD; Galerkin method; HF antennas; antenna radiation patterns; integral equations; spiral antennas; wire antennas; 5 to 30 MHz; Galerkin´s method; HF antenna; broadband antenna; computer-aided design; four wire dual-mode spiral antenna; horizontal ground plane; integral equation; inverted conical log-spiral; numerical results; radiation patterns; Antenna accessories; Antenna radiation patterns; Antenna theory; Bandwidth; Broadband antennas; Design automation; Integral equations; Moment methods; Spirals; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on

Conference_Location

Beijing, China

Print_ISBN

0-7803-6377-9

Type

conf

DOI

10.1109/ISAPE.2000.894715

Filename

894715