Wide Stop-Band Microstrip Lowpass Filter with Sharp Roll-off Using Hairpin Resonators

作者

  • M. Hayati Electrical Engineering Department, Faculty of Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
  • H. S. Vaziri Electrical Engineering Department, Faculty of Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran

关键词:

Hairpin unit, lowpass filter, microstrip, sharp roll-off, wide stop-band

摘要

A compact microstrip lowpass filter with wide stop-band and sharp roll-off skirt is presented. The structure consists of a combination of modified Hairpin units. The cut-off frequency is 3.1 GHz. The proposed low-pass filter has a very good performance such as extended stop-band bandwidth from 3.36 GHz to 21.5 GHz with the insertion-loss higher than -20.0 dB, sharp roll-off, low insertion-loss, and high return-loss in the passband. The filter is designed, fabricated, and tested and the measured results are in good agreement with the EM-simulation results.

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已出版

2021-09-27

栏目

General Submission