Study on the Two-arm Hemispherical Helical Antenna

Author

Xia, Dongyu ; Zhang, Hou ; Zhang, Qianyue ; Wang, Chong

Author_Institution

Missile Inst., Air Force Eng. Univ., Sanyuan

fYear

2006

fDate

26-29 Oct. 2006

Firstpage

1

Lastpage

3

Abstract

A novel two-arm hemispherical helical antenna is proposed in this paper. This antenna is composed with two wires winded on the hemisphere surface and fed by coaxial cable at the top joint. Characteristics of the antennas with different turns are analyzed by the moment method, results of which indicate that the ones with (4N+3)/4 turns have better characteristic in VSWR and axial ratio. A prototype antenna with 3.75 turns is made and measured. The results prove this antenna has the characteristics of great bandwidth broad angular range, and circular polarization, showing that it is of great value in satellite communication applications.

Keywords

antenna feeds; coaxial cables; helical antennas; polarisation; satellite antennas; angular range; circular polarization; coaxial cables; hemispherical helical antenna; satellite communication; Antenna measurements; Bandwidth; Coaxial cables; Helical antennas; Moment methods; Polarization; Prototypes; Satellite antennas; Satellite communication; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on

Conference_Location

Guilin

Print_ISBN

1-4244-0162-3

Electronic_ISBN

1-4244-0163-1

Type

conf

DOI

10.1109/ISAPE.2006.353329

Filename

4168370