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Sharp Roll-Off Ultra Wide Stopband Compact Microstrip Lowpass Filter Using Square-Shaped Resonator

Publish Year: 1398
Type: Journal paper
Language: English
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Document National Code:

JR_MJEE-13-2_006

Index date: 14 February 2023

Sharp Roll-Off Ultra Wide Stopband Compact Microstrip Lowpass Filter Using Square-Shaped Resonator abstract

In this paper, a novel compact microstrip Low-Pass Filter (LPF) with sharp roll-off and ultra-wide stopband with high suppression level is presented. In the proposed filter, square-shaped resonators are used. The cut-off frequency at 3dB is 1.88GHz. The maximum insertion loss of this filter is less than 0.1dB and the return loss is also less than 16dB in the passband. In the proposed structure, the stopband extends from 2.07 to 29.5 GHz at 24dB level of suppression and is considered as an ultra-wide stopband. There is a significant relationship between simulation and fabrication results, which have justified the functionality of the proposed LFP, respectively.

Sharp Roll-Off Ultra Wide Stopband Compact Microstrip Lowpass Filter Using Square-Shaped Resonator Keywords:

Sharp Roll-Off Ultra Wide Stopband Compact Microstrip Lowpass Filter Using Square-Shaped Resonator authors

Behnam Afzali

Department of Electrical Engineering, Faculty of Technical and Vocational No.۲, Kermanshah Branch, Technical and Vocational University (TVU), Kermanshah, Iran.

Farshid Yousefi Moghadam

Department of Electrical Engineering, Faculty of Technical and Vocational No.۲, Kermanshah Branch, Technical and Vocational University (TVU), Kermanshah, Iran.

Farshad Nadi

Department of Electrical Engineering, Faculty of Technical and Vocational No.۲, Kermanshah Branch, Technical and Vocational University (TVU), Kermanshah, Iran.

Rohallah Zallbeygi

Department of Electrical Engineering, Faculty of Technical and Vocational No.۲, Kermanshah Branch, Technical and Vocational University (TVU), Kermanshah, Iran.

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