Modelling of the multiple-arm conical spiral antennas for various applications

Author

Protsenko, M.B. ; Lukyanchikov, A.V. ; Troitskiy, A.V. ; Komarov, P.A.

Author_Institution

Sevastopol Nat. Tech. Univ., Ukraine

Volume

2

fYear

2003

fDate

9-12 Sept. 2003

Firstpage

491

Abstract

The investigation results of the radiation characteristics of multiple-arm conical spiral antennas are presented. An exponential spiral winding law for conical antennas providing a given radiation mode is proposed on the basis of the local equivalence principle. Computation of the current on the curved wires is obtained by an integral equation method. Comparison of the conical spiral antenna radiation characteristics, including half-power beamwidth, beam orientation and axial ratio, with those of well-known spiral winding laws (equiangular, Archimedian) is carried out.

Keywords

antenna radiation patterns; antenna theory; conical antennas; integral equations; spiral antennas; wire antennas; axial ratio; beam orientation; conical antennas; curved wires; exponential spiral winding law; half-power beamwidth; integral equation method; local equivalence principle; multiple-arm antennas; multiple-arm conical spiral antennas; radiation characteristics; radiation pattern; Antenna arrays; Antenna feeds; Geometry; Helical antennas; Integral equations; Polarization; Reflector antennas; Spirals; Turning; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Theory and Techniques, 2003. 4th International Conference on

Print_ISBN

0-7803-7881-4

Type

conf

DOI

10.1109/ICATT.2003.1238780

Filename

1238780