Application of electromagnetic bandgaps to the design of ultra-wide bandpass filters with good out-of-band performance

Joan García-García; Jordi Bonache; Ferran Martín

doi:https://doi.org/10.1109/TMTT.2006.886155

Application of electromagnetic bandgaps to the design of ultra-wide bandpass filters with good out-of-band performance

Joan García-García, Jordi Bonache, Ferran Martín

Department of Electronic Engineering

Research output: Contribution to journal › Article › Research › peer-review

152 Citations (Scopus)

Abstract

In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. © 2006 IEEE.

Original language	English
Pages (from-to)	4136-4140
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	54
DOIs	https://doi.org/10.1109/TMTT.2006.886155
Publication status	Published - 1 Dec 2006

Keywords

Electromagnetic bandgap (EBG)
Microstrip filters
Ultra-wideband (UWB) technology

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title = "Application of electromagnetic bandgaps to the design of ultra-wide bandpass filters with good out-of-band performance",

abstract = "In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. {\textcopyright} 2006 IEEE.",

keywords = "Electromagnetic bandgap (EBG), Microstrip filters, Ultra-wideband (UWB) technology",

author = "Joan Garc{\'i}a-Garc{\'i}a and Jordi Bonache and Ferran Mart{\'i}n",

year = "2006",

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doi = "https://doi.org/10.1109/TMTT.2006.886155",

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T1 - Application of electromagnetic bandgaps to the design of ultra-wide bandpass filters with good out-of-band performance

AU - García-García, Joan

AU - Bonache, Jordi

AU - Martín, Ferran

PY - 2006/12/1

Y1 - 2006/12/1

N2 - In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. © 2006 IEEE.

AB - In this study, a new technique for the design of ultrawide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpass filter centered at 3.4 GHz with a bandwidth covering 4.8 GHz is implemented in an Arlon substrate (permittivity εr = 2.4, thickness h = 0.675 mm). Measured filter characteristics are good with in-band insertion losses below 0.90 dB and return losses better than 10 dB. Out-of-band performance is also good with spurious passband attenuation higher than 30 dB up to at least 20 GHz. © 2006 IEEE.

KW - Electromagnetic bandgap (EBG)

KW - Microstrip filters

KW - Ultra-wideband (UWB) technology

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DO - https://doi.org/10.1109/TMTT.2006.886155

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JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

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