Compact Fully Uniplanar Bandstop Filter Based on Slow-Wave Multimodal CPW Resonators

Adrián Contreras; Miquel Ribó; Lluís Pradell; Victor Raynal; Ignacio Moreno; Maxence Combes; Milena Ten

doi:10.1109/LMWC.2018.2855565

Compact Fully Uniplanar Bandstop Filter Based on Slow-Wave Multimodal CPW Resonators

Adrián Contreras
, Miquel Ribó
, Lluís Pradell^*
, Victor Raynal
, Ignacio Moreno
, Maxence Combes
, Milena Ten

^*Corresponding author for this work

Research output: Indexed journal article › Article › peer-review

19 Citations (Scopus)

Abstract

In this letter, a compact, fully uniplanar bandstop filter is presented. It is based on multimodal coplanar waveguide resonators implemented using a slow-wave periodic structure that greatly reduces the filter's horizontal dimension. A multimodal circuit model for the filter is proposed and experimentally validated. A second-order filter prototype at 1.9 GHz, with a compact size of 0.31 λ_g × 0.19 λ_g, was designed and fabricated. The filter features measured fractional bandwidths of 9.3% and 3.7% for -20- and -30-dB rejection levels, respectively, and a 1.3-dB insertion loss in the passband.

Original language	English
Article number	8421621
Pages (from-to)	780-782
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	28
Issue number	9
DOIs	https://doi.org/10.1109/LMWC.2018.2855565
Publication status	Published - Sept 2018

Keywords

Bandstop filter (BSF)
multimodal circuit
slow wave
uniplanar

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10.1109/LMWC.2018.2855565

Cite this

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title = "Compact Fully Uniplanar Bandstop Filter Based on Slow-Wave Multimodal CPW Resonators",

abstract = "In this letter, a compact, fully uniplanar bandstop filter is presented. It is based on multimodal coplanar waveguide resonators implemented using a slow-wave periodic structure that greatly reduces the filter's horizontal dimension. A multimodal circuit model for the filter is proposed and experimentally validated. A second-order filter prototype at 1.9 GHz, with a compact size of 0.31 λg × 0.19 λg, was designed and fabricated. The filter features measured fractional bandwidths of 9.3\% and 3.7\% for -20- and -30-dB rejection levels, respectively, and a 1.3-dB insertion loss in the passband.",

keywords = "Bandstop filter (BSF), multimodal circuit, slow wave, uniplanar",

author = "Adri{\'a}n Contreras and Miquel Rib{\'o} and Llu{\'i}s Pradell and Victor Raynal and Ignacio Moreno and Maxence Combes and Milena Ten",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.",

year = "2018",

month = sep,

doi = "10.1109/LMWC.2018.2855565",

language = "English",

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pages = "780--782",

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T1 - Compact Fully Uniplanar Bandstop Filter Based on Slow-Wave Multimodal CPW Resonators

AU - Contreras, Adrián

AU - Ribó, Miquel

AU - Pradell, Lluís

AU - Raynal, Victor

AU - Moreno, Ignacio

AU - Combes, Maxence

AU - Ten, Milena

PY - 2018/9

Y1 - 2018/9

N2 - In this letter, a compact, fully uniplanar bandstop filter is presented. It is based on multimodal coplanar waveguide resonators implemented using a slow-wave periodic structure that greatly reduces the filter's horizontal dimension. A multimodal circuit model for the filter is proposed and experimentally validated. A second-order filter prototype at 1.9 GHz, with a compact size of 0.31 λg × 0.19 λg, was designed and fabricated. The filter features measured fractional bandwidths of 9.3% and 3.7% for -20- and -30-dB rejection levels, respectively, and a 1.3-dB insertion loss in the passband.

AB - In this letter, a compact, fully uniplanar bandstop filter is presented. It is based on multimodal coplanar waveguide resonators implemented using a slow-wave periodic structure that greatly reduces the filter's horizontal dimension. A multimodal circuit model for the filter is proposed and experimentally validated. A second-order filter prototype at 1.9 GHz, with a compact size of 0.31 λg × 0.19 λg, was designed and fabricated. The filter features measured fractional bandwidths of 9.3% and 3.7% for -20- and -30-dB rejection levels, respectively, and a 1.3-dB insertion loss in the passband.

KW - Bandstop filter (BSF)

KW - multimodal circuit

KW - slow wave

KW - uniplanar

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DO - 10.1109/LMWC.2018.2855565

M3 - Article

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SN - 1531-1309

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EP - 782

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 9

M1 - 8421621

ER -

Compact Fully Uniplanar Bandstop Filter Based on Slow-Wave Multimodal CPW Resonators

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Keywords

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