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Reconfigurable circularly polarized microstrip antenna with dual‐frequency operation
Author(s) -
Han TuanYung,
Tseng LinYu
Publication year - 2009
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.23987
Subject(s) - microstrip antenna , patch antenna , ground plane , microwave , pin diode , turnstile antenna , optics , coaxial antenna , electrical engineering , microstrip , reconfigurable antenna , circular polarization , antenna (radio) , diode , physics , optoelectronics , engineering , telecommunications
A circularly polarized (CP) microstrip antenna with dual‐frequency operation is presented. The proposed antenna has a square radiating patch with four shorting pins, and it is excited by an L‐shaped strip through the coupling of a ring‐slot in the ground plane. Five PIN diodes are attached to the proposed antenna, and the ability to reconfigure the CP performances is achieved by switching these diodes in certain sequences. The measured results demonstrated that the proposed dual‐frequency antenna is able to operate with a small frequency ratio radiating in the same polarization. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 29–32, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23987