Title :
A low profile Archimedean spiral antenna
Author :
Nakano, H. ; Mimnaki, H. ; Yamauchi, J. ; Hirose, K.
Author_Institution :
Coll. of Eng., Hosei Univ., Tokyo, Japan
fDate :
June 28 1993-July 2 1993
Abstract :
An Archimedean spiral antenna, two arms of which are located above a conducting plane reflector at a small height, is numerically analyzed. Resistive loads are used to reduce standing wave currents on the arms. At the lowest frequency (the antenna height corresponding to one-twentieth the wavelength), the spiral shows a gain of approximately 3 dB with an axial ratio of approximately 4 dB.<>
Keywords :
current distribution; integral equations; method of moments; spiral antennas; wire antennas; 3 dB; Archimedean spiral antenna; axial ratio; conducting plane reflector; gain; resistive loads; standing wave currents; Arm; Bandwidth; Coplanar waveguides; Current distribution; Educational institutions; Frequency response; Polarization; Spirals; Testing; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385310
