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

✍ Scribed by Daeyoung Oh; Myungki Kim; Ikmo Park

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 122 KB
Volume: 35
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.10636

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✦ Synopsis

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 f~o~. 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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