科研之友
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摘要
Conical Archimedes spiral antennas are designed to produce radiation patterns of cardoid or conical shapes for satellite applications. It is shown that the radiation pattern of this antenna can be easily shaped by setting the geometrical parameters of the conical spiral such as the cone angle and spiral constant. A minimized two-arm conical spiral antenna is presented for low elevation angle communication. The antenna has a beam with its highest gain at about 50 degrees off zenith and its dip at zenith. The gain at 2492 MHz is more than 4.5 dBi from 35 degrees and 65 degrees off zenith. The Measured VSWR actually can satisfy the design request (<= 1.2).
- 出版日期2010
- 单位中国人民武装警察部队学院; 西北工业大学
