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Frequency selective surfaces filters to enhance performance of Ka band applications
Author(s) -
Sanphuang Varittha,
Nahar Niru K.,
Volakis John L.
Publication year - 2014
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.28165
Subject(s) - passband , ka band , narrowband , broadband , band pass filter , microwave , attenuation , tunable metamaterials , materials science , selective surface , frequency band , electronic engineering , acoustics , optics , optoelectronics , engineering , physics , telecommunications , bandwidth (computing) , metamaterial
We present circular‐loop and fan‐shaped periodic geometries for narrow and broad passband Ka band filters using frequency selective surfaces (FSS), respectively. Two narrowband designs are obtained having less than 0.5‐dB attenuation with nearly −20‐dB out‐of‐band rejection. A three‐layer broadband (30%) FSS is also presented with high transmission and excellent flat bandpass response that covers almost the entire Ka band. Experimental results are also discussed to validate both the single‐layer and three‐layer designs. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:563–568, 2014