Title :
A spherical helical antenna
Author :
Cardoso, J. ; Safaai-Jazi, A.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
June 28 1993-July 2 1993
Abstract :
A spherical helical antenna is proposed, and its radiation characteristics are analyzed using numerical methods and experimental measurements. The analysis has shown that the spherical helix is, in general, a broad-beam radiator and operates over a relatively wide bandwidth. Results are highlighted for a ten-turn helix which, under certain conditions, can provide circular polarization over a wide beamwidth. The broad-beam circularly polarized antenna has potential applications in communications systems with low channel capacity.<>
Keywords :
antenna radiation patterns; helical antennas; method of moments; wire antennas; bandwidth; beamwidth; broad-beam radiator; circular polarization; numerical methods; radiation characteristics; spherical helical antenna; ten-turn helix; Antenna accessories; Antenna measurements; Bandwidth; Coaxial cables; Computational geometry; Conductors; Frequency; Helical antennas; Polarization; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385493
