New method of measuring phase characteristics of antenna using Doppler frequency measurement technique
| Autor: | Liu, Qinghui, Ping, Jinsong, Tsuruta, Seiitsu, Asari, Kazuyoshi, Kikuchi, Fuyuhiko, Matsumoto, Koji, Kawano, Nobuyuki |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
phase-locked oscillator
仰角 analog to digital converter ドップラー効果 位相特性 周波数窓関数 フェーズロック発信器 Doppler effect antenna phase characteristic hydrogen maser 発信器 アナログデジタル変換器 アンテナ 水素メーザ パラボラアンテナ oscillator azimuth elevation angle parabolic antenna patch antenna 方位角 frequency window function Computer Science::Information Theory パッチアンテナ |
| Zdroj: | 第5回宇宙科学シンポジウム = Proceedings of the 5th Space Science Symposium. :694-697 |
| Popis: | This paper reports on a new method of measuring the phase characteristics of an antenna using the Doppler frequency measurement technique. With this method, the antenna being tested is rotated at a rate of f(sub sp) around an axis through its geometrical center, and the phase characteristics of the antenna are calculated from the harmonic components of f(sub sp) during time variations in the Doppler frequency of radio waves emitted from the antenna. Using this, we obtained three-dimensional phase characteristics of a patch antenna with a root-mean-square error of about 0.5 degrees, and confirmed its efficacy through experimental results. 資料番号: AA0049122165 |
| Databáze: | OpenAIRE |
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