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A Compact Ultra-Wideband (UWB) Bandpass Filter With Transmission Zero

Hussein Shaman, Jia‐Sheng Hong

Open publisher page 35 citations

Abstract

A compact ultra-wideband (UWB) bandpass filter with a fractional bandwidth (FBW) of about 110% and transmission zero at the high frequency edge is presented using a microstrip structure. The filter is based on a circuit model for an optimum stub filter consisting of only 5 short-circuited stubs separated by non-redundant connecting lines. As a result, the filter in a compact structure exhibited a selective filtering characteristic equivalent to a 9-pole Chebyshev filter. The design was successfully realized in theory and verified by full-wave EM simulation of the full layout and the experiment. The proposed filter had low insertion loss, sharp rejection, and excellent performance both inside and outside the band

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What this paper is about

A compact ultra-wideband (UWB) bandpass filter with a fractional bandwidth (FBW) of about 110% and transmission zero at the high frequency edge is presented using a microstrip structure. The filter is based on a circuit model for an optimum stub filter consisting of only 5 short-circuited stubs separated by non-redundant connecting lines. As a result, the filter in a compact structure exhibited a selective filtering characteristic equivalent to a 9-pole Chebyshev filter. The design was successfully realized in theory and verified by full-wave EM simulation of the full layout and the experiment. The proposed filter had low insertion loss, sharp rejection, and excellent performance both inside and outside the band

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OpenAlex reports 35 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A compact ultra-wideband (UWB) bandpass filter with a fractional bandwidth (FBW) of about 110% and transmission zero at the high frequency edge is presented using a microstrip structure. The filter is based on a circuit model for an optimum stub filter consisting of only 5 short-circuited stubs separated by non-redundant connecting lines. As a result, the filter in a compact structure exhibited a selective filtering characteristic equivalent to a 9-pole Chebyshev filter. The design was successfully realized in theory and verified by full-wave EM simulation of the full layout and the experiment. The proposed filter had low insertion loss, sharp rejection, and excellent performance both inside and outside the band

Key concepts: Chebyshev filter, Band-pass filter, Stub (electronics), Electronic engineering, Voltage-controlled filter, Butterworth filter, High-pass filter, Prototype filter

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