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Compact circular polarized patch antenna with harmonic rejection
Author(s) -
Yo TzongChee,
Lee ChienMing,
Luo ChingHsing
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23009
Subject(s) - rectenna , patch antenna , turnstile antenna , circular polarization , microstrip antenna , microwave , harmonic , resonator , antenna (radio) , physics , optics , electrical engineering , engineering , acoustics , coaxial antenna , electronic engineering , telecommunications , microstrip , voltage , rectification
Abstract Design of circularly polarized antenna using circular patch with single feed is proposed. The circular polarization (CP) property with second harmonic rejection can be achieved by embedding two circular slots in the patch resonator. By changing the size and position of the slots, two orthogonal modes with equal amplitude and 90° out of phase are simultaneously excited. In the meanwhile, the embedded slots blocking the second harmonic signal is especially suitable for the circuits with nonlinear elements, such as rectify antenna (rectenna). Furthermore, the patch is simple and compact with 12% of the antenna area reduction. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 45–48, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23009