標題: A new phase-shifterless scanning technique for a two-element active antenna array
作者: Chou, YH
Chung, SJ
電信工程研究所
Institute of Communications Engineering
關鍵字: active antenna array;phase-shifterless scattering
公開日期: 1-二月-1999
摘要: In this paper, a new phase-shifterless beam-scanning technique is proposed and demonstrated for a two-element active antenna array. An internal control line with an embedded amplifier is introduced in the array to provide another injection signal other than the mutual-coupling injection signal between antennas. By mixing the effects of the signals from the control Line and mutual coupling, the phase difference between antennas is adjusted by gradually changing the amplifier bias on the control line. A dynamic analysis is presented to explain the scanning mechanism. The measured results showed that, when the control-line amplifier was biased from the off state to fully on state, the radiation pattern of the array was varied smoothly from the out-of-phase mode (with 180 degrees radiation phase difference) to the in-phase mode (with 0 degrees phase difference). During the scanning process, the antenna oscillators were stably locked, with the deviation of the locked frequency lower than 0.35%.
URI: http://dx.doi.org/10.1109/22.744302
http://hdl.handle.net/11536/31529
ISSN: 0018-9480
DOI: 10.1109/22.744302
期刊: IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Volume: 47
Issue: 2
起始頁: 243
結束頁: 246
顯示於類別:期刊論文


文件中的檔案:

  1. 000078559600017.pdf