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Nonuniform reflect‐array antennas
Author(s) -
MoeiniFard M.,
KhalajAmirhosseini M.
Publication year - 2012
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20596
Subject(s) - center frequency , bandwidth (computing) , microwave , polarization (electrochemistry) , directional antenna , frequency band , electronic engineering , physics , antenna (radio) , acoustics , computer science , engineering , electrical engineering , telecommunications , band pass filter , chemistry
A center‐fed reflect‐array antenna with nonuniform substrate as a reflecting surface is proposed. To design and analyze this kind of antennas, a simple method based on an equivalent circuit model is introduced. Using this method a low cross‐polarization of about −21 dB below the main beam peak and wide 3‐dB gain bandwidth of 19.5% are obtained at X‐band frequency. © 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2012.