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2010•Unpublished venueRequires access

A compact highpass filter with broad passband

Desen Lu, Qingyuan Wang, Ao Liao, Xianrong Zhang

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Abstract

A highpass filter is designed, which is based on shorting stubs in cascade. The design considerations for broad passband and compactness are presented, together with simulated and tested results. Tested results show that the sample filter has a passband from 3 to 12.75GHz, with an insertion loss less than 1dB and a rejection of 60dB for frequencies lower than 2.4GHz. Further work to improve the return loss is also discussed.

About this research paper

What this paper is about

A highpass filter is designed, which is based on shorting stubs in cascade. The design considerations for broad passband and compactness are presented, together with simulated and tested results. Tested results show that the sample filter has a passband from 3 to 12.75GHz, with an insertion loss less than 1dB and a rejection of 60dB for frequencies lower than 2.4GHz. Further work to improve the return loss is also discussed.

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Available abstract

A highpass filter is designed, which is based on shorting stubs in cascade. The design considerations for broad passband and compactness are presented, together with simulated and tested results. Tested results show that the sample filter has a passband from 3 to 12.75GHz, with an insertion loss less than 1dB and a rejection of 60dB for frequencies lower than 2.4GHz. Further work to improve the return loss is also discussed.

Key concepts: Passband, High-pass filter, Band-pass filter, Filter (signal processing), Return loss, Computer science, Electronic engineering, Butterworth filter

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