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.
|Number of pages||4|
|Journal||IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)|
|Publication status||Published - 2001 Nov 26|
|Event||2001 IEEE Antennas and Propagation Society International Symposium-Adaptive Arrays in Communications- - Boston, MA, United States|
Duration: 2001 Jul 8 → 2001 Jul 13
ASJC Scopus subject areas
- Electrical and Electronic Engineering