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Design of a high isolation dual‐polarized slot‐coupled microstrip antenna
Author(s) -
Liang XianLing,
Zhong ShunShi,
Wang Wei
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.21126
Subject(s) - microstrip antenna , wideband , microstrip , dual polarization interferometry , patch antenna , bandwidth (computing) , standing wave ratio , microwave , optics , engineering , physics , electrical engineering , optoelectronics , antenna (radio) , telecommunications
The design of a wideband dual‐polarized slot‐coupled stacked microstrip antenna with high isolation is introduced. The proposed stacked‐patch antenna is excited by both open‐ended and T‐shaped microstrip lines via two H‐shaped slots placed orthogonally so as to improve the isolation between the two polarization ports. The measured isolation is better than 40.5 dB over the bandwidth from 8.8 to 9.8 GHz with cross‐polarization level of less than −28.5 dB. The measured VSWR ≤ 2 bandwidths reach 20.7% and 19.1% for the two polarization ports, respectively. This antenna is suitable as an array element for spaceborne synthetic aperture radar (SAR) and active phased‐radar applications. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 212–215, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21126