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Circularly polarized patch antenna with an L‐shaped probe fed by a microstrip line
Author(s) -
Lo W. K.,
Hu J.L.,
Chan C. H.,
Luk K. M.
Publication year - 2000
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(20000320)24:6<412::aid-mop15>3.0.co;2-r
Subject(s) - microstrip antenna , patch antenna , microstrip , circular polarization , optics , bandwidth (computing) , physics , axial ratio , turnstile antenna , microwave , optoelectronics , coaxial antenna , antenna (radio) , electrical engineering , engineering , telecommunications , quantum mechanics
A circularly polarized (CP) circular patch microstrip antenna with a cross slot using an L‐shaped probe fed by a microstrip line is designed and measured. With the single L‐probe, the impedance bandwidth, the axial‐ratio bandwidth, and the gain bandwidth are 27, 3.47, and 26%, respectively, for the left‐hand circular polarization (LHCP) excitation, which provides a good improvement over the one with other single‐point feeding techniques. This microstrip/L‐probe feed can be extended to the design of a CP antenna array using sequential rotation. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 412–414, 2000.