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Bandwidth and cross‐polarization characteristics of quarter‐wave shorted patch antennas
Author(s) -
Chair Ricky,
Lee K. F.,
Luk K. M.
Publication year - 1999
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/(sici)1098-2760(19990720)22:2<101::aid-mop7>3.0.co;2-x
Subject(s) - wavelength , bandwidth (computing) , optics , microwave , oblique case , polarization (electrochemistry) , circular polarization , materials science , physics , acoustics , engineering , microstrip , telecommunications , chemistry , linguistics , philosophy
Abstract The impedance bandwidth and cross‐polarization characteristics of quarter‐wave shorted patch antennas are investigated experimentally. It is found that, for a square quarter‐wave patch on foam substrate of thickness 5.8% of wavelength, the bandwidth is 18.54%, which is more than three times that of the half‐wave patch. The cross polarization in the H‐plane is very large at oblique angles, even if a think substrate is used. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 22: 101–103, 1997.