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A T‐junction power divider FED circularly polarized cavity backed slot antenna
Author(s) -
Luo Guo Qing,
Hu Zhi Fang,
Zhang Xiao Hong,
Dong Lin Xi,
Sun Ling Ling
Publication year - 2012
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.26482
Subject(s) - power dividers and directional couplers , microwave , antenna (radio) , slot antenna , optics , turnstile antenna , waveguide , coaxial antenna , electrical engineering , optoelectronics , materials science , radiation pattern , physics , engineering , telecommunications
A circularly polarized antenna realized by a power divider fed cavity backed slot antenna is presented in this article.The cavity backed slot antenna is constructed on a single layer substrate by using substrate integrated waveguide (SIW) technique. A T‐junction power divider with equal magnitude and 90° phase difference outputs is adopted as the parallel feed to excite the SIW backed cavity. Circularly polarized radiation can be generated when two orthogonal cavity modes are excited simultaneously in the backed cavity. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:107–109, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26482