A novel unbalanced feed system to achieve quasi-anti-phase excitation without a balun circuit was proposed. A single coaxial line was used to fed the antenna. The radiation characteristics of two-wire spiral antenna were investigated and compared with the radiation characteristics of coventional spiral antenna with a balanced feed system. The frequency bandwidth for a 3-dB axial ratio criterion was found to be 18% with a gain of 8 dB approximately.
|ジャーナル||IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)|
|出版物ステータス||Published - 2001 11 26|
|イベント||2001 IEEE Antennas and Propagation Society International Symposium-Adaptive Arrays in Communications- - Boston, MA, United States|
継続期間: 2001 7 8 → 2001 7 13
ASJC Scopus subject areas
- Electrical and Electronic Engineering