Title :
Monofilar and quadrifilar helical antennas wound on dielectric rods
Author :
Nakano, H. ; Masui, N. ; Ikeda, M. ; Mimaki, H. ; Yamauchi, J.
Author_Institution :
Fac. of Eng., Hosei Univ., Tokyo, Japan
Abstract :
This paper presents monofilar and quadrifilar helical antennas wound on dielectric rods. These antennas are designed for radiating circularly polarized waves. The finite-difference time domain method, formulated using a rectangular coordinate system (x, y, z), is used to analyze the helical antennas. The radiation pattern, input impedance, and gain are evaluated and discussed.
Keywords :
antenna radiation patterns; antenna theory; current distribution; finite difference time-domain analysis; frequency response; helical antennas; antenna gain; circularly polarized waves; current distribution; finite-difference time domain method; frequency response; input impedance; monofilar helical antennas; quadrifilar helical antennas; radiation pattern; rectangular coordinate system; traveling wave distribution; wound on dielectric rods; Bandwidth; Dielectric materials; Feeds; Finite difference methods; Frequency; Helical antennas; Impedance; Polarization; Time domain analysis; Wounds;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220043
