Title :
Axial-mode elliptical helical antenna with variable pitch angle
Author :
Yang, Fei ; Zhang, Peng ; Guo, Chen-Jiang ; Xu, J.-D.
Author_Institution :
Sch. of Electron. Eng., Northwestern Polytech. Univ., Xi´an
Abstract :
To improve an elliptical cross-section helical antenna´s radition performance, an elliptical helical antenna with a variable pitch angle is proposed. Its radiation patterns are simulated by the moment method and FEKO software. The results show that its circular polarisation as well as its directivity can be improved compared with an elliptical helical antenna of the same coil number, axial size and arm length.
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; method of moments; axial-mode elliptical helical antenna; circular polarisation; cross-section antenna radition performance; moment method; variable pitch angle;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081818
