Two-arm microstrip spiral antenna with a circular aperture on the ground plane

  1. Daeyoung Oh,
  2. Myungki Kim,
  3. Ikmo Park

Article first published online: 21 NOV 2002

DOI: 10.1002/mop.10636

Issue

Microwave and Optical Technology Letters

Microwave and Optical Technology Letters

Volume 35, Issue 6, pages 453–455, 20 December 2002

Additional Information

How to Cite

Oh, D., Kim, M. and Park, I. (2002), Two-arm microstrip spiral antenna with a circular aperture on the ground plane. Microw. Opt. Technol. Lett., 35: 453–455. doi: 10.1002/mop.10636

Author Information

  1. Microwave Communication Laboratory, Department of Electrical and Computer Engineering, Ajou University, Suwon, 442-749, Korea

Publication History

  1. Issue published online: 21 NOV 2002
  2. Article first published online: 21 NOV 2002
  3. Manuscript Received: 10 JUN 2002

Funded by

  • Korea Ministry of Commerce, Industry, and Energy

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Keywords:

  • microstrip spiral antenna;
  • axial beam;
  • tilted beam;
  • mobile communication antenna;
  • satellite communication antenna

Abstract

This paper presents a two-arm microstrip spiral antenna with a circular aperture on the ground plane that produces either an axial beam or a tilted beam, depending on the operating frequency. A 50-Ω microstrip feedline is divided into two 100-Ω lines that feed the spiral antenna from the outer end of the spiral arms with a 180° phase difference at fo. The antenna is realized on a planar form without any balun circuit using a microstrip structure, which is easily compatible with millimeter- and microwave-integrated circuits. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 453–455, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10636

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