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Low-profile omnidirectional circularly polarized antenna for WLAN access points

✍ Scribed by Fu-Ren Hsiao; Kin-Lu Wong

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
177 KB
Volume
46
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A novel low‐profile omnidirectional circularly polarized antenna comprising a top‐loaded cylindrical monopole and four printed arc‐shaped dipoles is presented. The cylindrical monopole and four printed dipoles share a common feeding point and generate two orthogonal polarizations with a 90° phase difference, resulting in omnidirectional circular‐polarization (CP) radiation in the azimuthal plane. The proposed antenna is also arranged in a compact structure with a low profile (less than 0.1 wavelength of the center operating frequency). A constructed prototype suitable for applications in a wireless local area network (WLAN) access point in the 2.4‐GHz band is demonstrated. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 227–231, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20952

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