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Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate

This paper reports a compact bandpass filter with improved skirt selectivity using integrated passive device fabrication technology on a GaAs substrate. The structure of the filter consists of electromagnetically coupled meandered-line symmetric stepped-impedance resonators. The strength of the coup...

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Detalles Bibliográficos
Autores principales: Chuluunbaatar, Z., Wang, C., Kim, N. Y.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4217238/
https://www.ncbi.nlm.nih.gov/pubmed/25386617
http://dx.doi.org/10.1155/2014/809809
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author Chuluunbaatar, Z.
Wang, C.
Kim, N. Y.
author_facet Chuluunbaatar, Z.
Wang, C.
Kim, N. Y.
author_sort Chuluunbaatar, Z.
collection PubMed
description This paper reports a compact bandpass filter with improved skirt selectivity using integrated passive device fabrication technology on a GaAs substrate. The structure of the filter consists of electromagnetically coupled meandered-line symmetric stepped-impedance resonators. The strength of the coupling between the resonators is enhanced by using a meandered-line stub-load inside the resonators to improve the selectivity and miniaturize the size of the filter. In addition, the center frequency of the filter can be flexibly controlled by varying degrees of the capacitive coupling between resonator and stub-load. To verify the proposed concept, a protocol bandpass filter with center frequency of 6.53 GHz was designed, fabricated, and measured, with a return loss and insertion loss of 39.1 dB and 1.63 dB.
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spelling pubmed-42172382014-11-10 Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate Chuluunbaatar, Z. Wang, C. Kim, N. Y. ScientificWorldJournal Research Article This paper reports a compact bandpass filter with improved skirt selectivity using integrated passive device fabrication technology on a GaAs substrate. The structure of the filter consists of electromagnetically coupled meandered-line symmetric stepped-impedance resonators. The strength of the coupling between the resonators is enhanced by using a meandered-line stub-load inside the resonators to improve the selectivity and miniaturize the size of the filter. In addition, the center frequency of the filter can be flexibly controlled by varying degrees of the capacitive coupling between resonator and stub-load. To verify the proposed concept, a protocol bandpass filter with center frequency of 6.53 GHz was designed, fabricated, and measured, with a return loss and insertion loss of 39.1 dB and 1.63 dB. Hindawi Publishing Corporation 2014 2014-10-20 /pmc/articles/PMC4217238/ /pubmed/25386617 http://dx.doi.org/10.1155/2014/809809 Text en Copyright © 2014 Z. Chuluunbaatar et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Chuluunbaatar, Z.
Wang, C.
Kim, N. Y.
Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title_full Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title_fullStr Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title_full_unstemmed Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title_short Miniaturized Bandpass Filter Using a Meandered Stepped-Impedance Resonator with a Meandered-Line Stub-Load on a GaAs Substrate
title_sort miniaturized bandpass filter using a meandered stepped-impedance resonator with a meandered-line stub-load on a gaas substrate
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4217238/
https://www.ncbi.nlm.nih.gov/pubmed/25386617
http://dx.doi.org/10.1155/2014/809809
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