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Abstract
This paper witnessed the design of multimode resonator band pass filter with low insertion loss and the loss due to connectors at both input and output terminals. The design finds two cascaded MMR structure with two pair of CSRR, implemented at ground plane of the micro strip design to get five resonant frequencies which claims the required pass band. The frequencies we obtained here around the pass band are 3.4GHz, 4.2GHz, 5.2GHz, 6.5GHz and 7.5GHz. The substrate (Rogers RT/duroid 6010/6010LM (tm)) thickness is considered to be 0.787 mm with dielectric constant εr =2.2.The substrate and the conductor assume to be lossless to detect resonant peaks accurately. CSRR are implemented to achieve high band to band isolation with sharp transition characteristics. The benefit of incorporating the CSRR in this work is to get wide stop band with proper variation of dimensions.