Microstrip Compact Twin-Interdigital Steped Impedance Resonator-Based Bandpass Filter for C-Band Applications

  • Ram Krishna Maharjan Department of Electronics and Computer Engineering, Pulchowk Campus, T.U.
Keywords: Microstrip resonator, Interdigital capacitor, Bandpass filter, SIR resonator, Microstrip filter, C-band communications

Abstract

This research focuses a new microstrip twin-interdigital type bandpass filter based on stepped impedance resonator (SIR) structure. The proposed structure consists of two slightly different interdigital capacitances within a single SIR resonator that behaves as a bandpass filter (BPF) of center frequency 4.3 GHz with 700 MHz bandwidth at 3 dB pass band. This design is not only subjected to size reduction, but also low pass-band insertion loss and high return loss as well. The Sonnet software tool has been used to design and simulate the microstrip BPF. The fabricated BPF was measured using the Agilent 8510C vector network analyzer (VNA) and achieved the insertion loss of 0.5 dB and the return loss of 26 dB. The measured results were compared with those simulated results which were very close to each other. The fabricated BPF can be used for Cband Applications.

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Author Biography

Ram Krishna Maharjan, Department of Electronics and Computer Engineering, Pulchowk Campus, T.U.

Professor

Published
2018-12-31
How to Cite
Maharjan, R. (2018). Microstrip Compact Twin-Interdigital Steped Impedance Resonator-Based Bandpass Filter for C-Band Applications. Journal of Advanced College of Engineering and Management, 4, 119-124. https://doi.org/10.3126/jacem.v4i0.23201
Section
Articles