Very compact quadrifilar helix antenna in VHF band with quasi hemispherical radiation pattern

Author

Fonseca, Nelson J G ; Aubert, Herve

Author_Institution

Antenna Dept. - CNES, French Space Agency, Toulouse, France

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

4

Abstract

In this communication, two very compact quadrifilar helix antennas were proposed in VHF band. Significant height reduction is achieved with performances similar to the reference antenna in both input matching and radiation patterns. The proposed designs were found through a dasiacut and trypsila simulation process. We may be able to further improve the height reduction while keeping good performances by associating an optimization algorithm to the electromagnetic simulation tool.

Keywords

VHF antennas; antenna radiation patterns; helical antennas; optimisation; VHF band; electromagnetic simulation tool; height reduction; input matching; optimization algorithm; quasihemispherical radiation pattern; radiation patterns; reference antenna; very compact quadrifilar helix antenna; Antenna radiation patterns; Degradation; Electronic mail; Frequency; Helical antennas; Indium phosphide; Pattern matching; Satellite antennas; Uninterruptible power systems; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE

Conference_Location

Charleston, SC

ISSN

1522-3965

Print_ISBN

978-1-4244-3647-7

Type

conf

DOI

10.1109/APS.2009.5171496

Filename

5171496