article

Design of an ultra-sharp composite low-pass filter using analytical method

Authors:

Alireza Golestanifar,

Saeed RoshaniAuthors Info & Claims

Analog Integrated Circuits and Signal Processing, Volume 100, Issue 2

Pages 249 - 255

https://doi.org/10.1007/s10470-018-1358-3

Published: 01 August 2019 Publication History

Abstract

An ultra-sharp microstrip composite low-pass filter (LPF) with proper structure using analytical method is proposed. A composite LPF using image parameter method and lumped elements is designed is this paper. Then, quasi-lumped elements, such as: open-stub lines, high and low impedance lines and standard microstrip equations are utilized to microstrip implementation. In addition, parasitic substance of the quasi-lumped capacitors are compensated. Moreover, reduce the size of the microstrip filter, the curved microstrip lines are applied. A proposed composite LPF with a cutoff frequency of 1.3 GHz is designed and fabricated. The proposed device has great specifications, such as: ultra-sharp cutoff (600 dB/GHz), compact size (0.100 g 0.168 g) and high suppression level in stopband ( 35 dB). The measured frequency responses of the proposed LPF, have good agreement with simulation results, which show the validity of the results. With this specifications the proposed filter is suitable for L-band applications.

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Cited By

Heydari MRoshani S(2021)Miniaturized Harmonic Suppressed Wilkinson Power Divider using Lumped Components and ResonatorsWireless Personal Communications: An International Journal10.1007/s11277-020-07933-8117:2(1527-1536)Online publication date: 1-Mar-2021
https://dl.acm.org/doi/10.1007/s11277-020-07933-8

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Published In

cover image Analog Integrated Circuits and Signal Processing

Analog Integrated Circuits and Signal Processing Volume 100, Issue 2

August 2019

258 pages

ISSN:0925-1030

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Copyright © Copyright © 2019 Springer Science+Business Media, LLC, part of Springer Nature.

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Kluwer Academic Publishers

United States

Publication History

Published: 01 August 2019

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Cited By

Heydari MRoshani S(2021)Miniaturized Harmonic Suppressed Wilkinson Power Divider using Lumped Components and ResonatorsWireless Personal Communications: An International Journal10.1007/s11277-020-07933-8117:2(1527-1536)Online publication date: 1-Mar-2021
https://dl.acm.org/doi/10.1007/s11277-020-07933-8

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