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Compact lowpass filter with wide stopband

Xing‐Bing Ma, Hongxing Zheng, Cheng‐Guang Sun

Open publisher page 2 citations

Abstract

A compact lowpass filter with wide stopband is discussed in this paper. To obtain wide stopband, ten open stubs are embedded into the microstrip signal path, the low passband bandwidth and the spurious suppression can be adjusted by the two stubs on the top and the bottom. Based on the proposed topology, a prototype was fabricated to achieve the wide stopband applications from 4.31 to 7.78 GHz. Experiment results demonstrate newly designed filter available.

About this research paper

What this paper is about

A compact lowpass filter with wide stopband is discussed in this paper. To obtain wide stopband, ten open stubs are embedded into the microstrip signal path, the low passband bandwidth and the spurious suppression can be adjusted by the two stubs on the top and the bottom. Based on the proposed topology, a prototype was fabricated to achieve the wide stopband applications from 4.31 to 7.78 GHz. Experiment results demonstrate newly designed filter available.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

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Method / approach

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Available abstract

A compact lowpass filter with wide stopband is discussed in this paper. To obtain wide stopband, ten open stubs are embedded into the microstrip signal path, the low passband bandwidth and the spurious suppression can be adjusted by the two stubs on the top and the bottom. Based on the proposed topology, a prototype was fabricated to achieve the wide stopband applications from 4.31 to 7.78 GHz. Experiment results demonstrate newly designed filter available.

Key concepts: Stopband, Elliptic filter, Transition band, Passband, Spurious relationship, Low-pass filter, Electronic engineering, Prototype filter

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