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Broadband aperture‐coupled circularly polarized microstrip antenna fed by a three‐stub hybrid coupler
Author(s) -
Qing X. M.
Publication year - 2003
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.11280
Subject(s) - stub (electronics) , broadband , hybrid coupler , optics , microstrip antenna , standing wave ratio , microwave , circular polarization , microstrip , axial ratio , physics , engineering , electrical engineering , power dividers and directional couplers , telecommunications , antenna (radio)
Abstract A novel aperture‐coupled circularly polarized microstrip antenna with a three‐stub hybrid coupler feed circuit in order to generate broadband circular polarization radiation is proposed. The bandwidth is 32.3% for 2:1 VSWR and 42.6% for 3‐dB axial ratio. The achievable maximum gain is 8.8 dBic. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 38–41, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11280