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CPS‐fed printed dual spiral‐loop strip antenna with circular polarization
Author(s) -
Zhang Yingbo,
Zhu Lei
Publication year - 2005
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.21030
Subject(s) - stripline , microwave , circular polarization , engineering , spiral (railway) , axial ratio , bandwidth (computing) , impedance matching , electrical engineering , optics , electronic engineering , materials science , electrical impedance , optoelectronics , physics , telecommunications , microstrip , mechanical engineering
A dual spiral‐loop strip antenna fed by coplanar stripline (CPS) is proposed and developed for circularly polarized printed antennas with miniaturized size and broad bandwidth. The overall size is reduced in circumference by about 33%. A printed feeding circuit is designed and implemented using uniplanar CPS technology in order to realize good impedance matching. The predicted results are validated by the experiment. The measured bandwidths under a 3‐dB axial ratio and voltage standing‐wave ratio are found to about 10% and 6%, respectively. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 506–508, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21030