META 2021, META'12

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BANDPASS WAVEGUIDE FILTER WITH MULTISPURIOUS REJECTION
Ali Molaei, Saeed Fallahzadeh, Mina Nazari

Last modified: 2012-01-28

Abstract


In this paper, spurious passband suppression in waveguide bandpass filter by means of split ring resonators (SRRs) is proposed. The bandpass waveguide filter is designed using complementary split ring resonators (CSRRs). Then, the split ring resonator (SRR) arrays are loaded in the waveguide to reject multiple spurious passbands.

Simulation results show that for a 3rd order bandpass filter, a rejection level exceeding 35dB is obtained in the first three spurious passbands, while the desired passband is maintained unaltered.