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2021-02-03
Conductor Backed Co-Planar Waveguide Inspired s-Band Filter Using Multi-Ring Resonators
By
Progress In Electromagnetics Research Letters, Vol. 96, 59-64, 2021
Abstract
A conductor backed CPW-based S-band filter using Multiple Ring Resonators (MRR) is presented. The resonator is coupled with the feed line through inter-digital coupling. Square resonator structure joined with inter-digital coupling on both sides on conductor plane and multiple ring resonators implemented with equal spacing at the ground plane forms a conductor backed CPW filter model. Adjusting the size and gap factor of MRR, the wide tuning ranges of desired frequencies are achieved. The filter has an outstanding bandwidth range from (2-4) GHz which fits for Satellite S-Band applications. The S-Band has low insertion loss (-0.95 dB), lower return loss (-35 dB), wide bandwidth (fractional bandwidth 66.6%) at the center frequency 3 GHz are obtained. The size of the filter performance characteristics are investigated and compared with measured results. The complete measurement of filter is (39×7.2×1.6) mm. The measured values of S11 and S21 are about -25 dB and -1.92 dB respectively.
Citation
Souprayen Oudaya Coumar , "Conductor Backed Co-Planar Waveguide Inspired s-Band Filter Using Multi-Ring Resonators," Progress In Electromagnetics Research Letters, Vol. 96, 59-64, 2021.
doi:10.2528/PIERL20123003
http://www.jpier.org/PIERL/pier.php?paper=20123003
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