A two-wire spiral antenna with unbalanced feed

K. Hirose, M. Miyamoto, H. Nakano

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)128-131
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Publication statusPublished - 2001 Nov 26
Externally publishedYes
Event2001 IEEE Antennas and Propagation Society International Symposium-Adaptive Arrays in Communications- - Boston, MA, United States
Duration: 2001 Jul 82001 Jul 13

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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