On the development of compact lumped-element LCP filters

Laura Alice Hepburn; Jiasheng Hong

doi:10.1109/EuMC.2014.6986491

On the development of compact lumped-element LCP filters

Laura Alice Hepburn, Jiasheng Hong

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

This paper presents a novel compact, UHF-band lumped element filter that shows good results versus other similar designs, with a 20% fractional bandwidth operating at 500MHz with a 17dB return loss. The circuit was designed using multilayer LCP, with a focus on minimising the footprint and the number of vias present, which was achieved by folding the design and implementing a block of shared ground vias, avoiding unwanted coupling in the process. Using a 4-pole tubular filter circuit model, the initial filter designed showed a good response and underwent a subsequent successful redesign that reduced the footprint by 60% and the number of vias by 37.5% without sacrificing the response of the filter.

Original language	English
Title of host publication	European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
Publisher	IEEE
Pages	544-547
Number of pages	4
ISBN (Print)	9782874870354
DOIs	https://doi.org/10.1109/EuMC.2014.6986491
Publication status	Published - 2014
Event	2014 44th European Microwave Conference - Rome, Italy Duration: 6 Oct 2014 → 9 Oct 2014

Conference

Conference	2014 44th European Microwave Conference
Abbreviated title	EuMC 2014
Country	Italy
City	Rome
Period	6/10/14 → 9/10/14
Other	Held as Part of the 17th European Microwave Week, EuMW 2014

Keywords

bandpass filter
liquid crystal polymer
lumped element filter
multilayer circuit

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/EuMC.2014.6986491

Link to publication in Scopus

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Cite this

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title = "On the development of compact lumped-element LCP filters",

abstract = "This paper presents a novel compact, UHF-band lumped element filter that shows good results versus other similar designs, with a 20% fractional bandwidth operating at 500MHz with a 17dB return loss. The circuit was designed using multilayer LCP, with a focus on minimising the footprint and the number of vias present, which was achieved by folding the design and implementing a block of shared ground vias, avoiding unwanted coupling in the process. Using a 4-pole tubular filter circuit model, the initial filter designed showed a good response and underwent a subsequent successful redesign that reduced the footprint by 60% and the number of vias by 37.5% without sacrificing the response of the filter.",

keywords = "bandpass filter, liquid crystal polymer, lumped element filter, multilayer circuit",

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AB - This paper presents a novel compact, UHF-band lumped element filter that shows good results versus other similar designs, with a 20% fractional bandwidth operating at 500MHz with a 17dB return loss. The circuit was designed using multilayer LCP, with a focus on minimising the footprint and the number of vias present, which was achieved by folding the design and implementing a block of shared ground vias, avoiding unwanted coupling in the process. Using a 4-pole tubular filter circuit model, the initial filter designed showed a good response and underwent a subsequent successful redesign that reduced the footprint by 60% and the number of vias by 37.5% without sacrificing the response of the filter.

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