Title :
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
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;
Conference_Titel :
Antenna Theory and Techniques, 2003. 4th International Conference on
Print_ISBN :
0-7803-7881-4
DOI :
10.1109/ICATT.2003.1238780
