Round spiral antennas printed on a grounded dielectric substrate with a single surface wave mode

H. Nakano, K. Hirose, S. R. Kerner, N. G. Alexopoulos

研究成果: Conference article

抜粋

Frequency characteristics of two types of spiral antennas printed on a grounded dielectric substrate are investigated under the condition that a single surface wave mode (TM mode) is allowed to exist. The currents on the spiral arms are evaluated by using the method of moments and the radiation characteristics are examined over a frequency range of 1:1.19. The bandwidth in which the axial ratio is less than 3 dB is calculated to be 15% for a printed spiral antenna of one center source and 10% for a spiral antenna of two off-center sources. These two antennas have nearly pure resistances of 330 and 350 Ω, respectively.

元の言語English
ページ(範囲)692-695
ページ数4
ジャーナルIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
2
出版物ステータスPublished - 1988 12 1
外部発表Yes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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