Title :
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
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;
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
DOI :
10.1109/ISAPE.2006.353329
