CIRCULARLY-POLARIZED CONICAL BEAM ANTENNAS

Authors
KAWAKAMI H SATO G WATANABE T WAKABAYASHI R
Citation
H. Kawakami et al., CIRCULARLY-POLARIZED CONICAL BEAM ANTENNAS, Electronics & communications in Japan. Part 1, Communications, 78(5), 1995, pp. 66-80
Citations number
16
Categorie Soggetti
Engineering, Eletrical & Electronic",Telecommunications
Journal title
Electronics & communications in Japan. Part 1, Communications → ACNP
ISSN journal
87566621
Volume
78
Issue
5
Year of publication
1995
Pages
66 - 80
Database
ISI
SICI code
8756-6621(1995)78:5<66:CCBA>2.0.ZU;2-1
Abstract
A small and lightweight antenna was developed which generates a circul arly polarized conical beam in the desired direction by changing the i ncline angle of the linear antenna elements and the spacing between th e antenna elements without phase shifters. The experiment for directiv ity of the circularly polarized conical beam antenna was carried out b y using four monopole antennas, and the effectiveness of the theoretic al analysis was confirmed. Next, experiments were carried out for the impedance and directivity with representative dimensions. The gain in the maximum direction was 4.5 dBi with an axial ratio of less than 2 d B and a standing wave ratio of less than 1.2.