Investigation of novel tapered hybrid Defected Ground Structure (DGS)

Mohammad Nurunnabi Mollah; Nemai Chandra Karmakar; Jeffrey S. Fu

doi:10.1002/mmce.20098

Investigation of novel tapered hybrid Defected Ground Structure (DGS)

Mohammad Nurunnabi Mollah^*
, Nemai Chandra Karmakar
, Jeffrey S. Fu

^*Corresponding author for this work

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

10 Scopus citations

Abstract

Novel defected ground structures (DGSs) have been investigated to achieve improved low-pass filter (LPF) properties. A chronological development in designs ranging from conventional square-patterned photonic-bandgap structure (PBGS) and conventional dumbbell-shaped DGS to proposed novel nonuniform DGS has been investigated theoretically and experimentally using computer-aided design (CAD) tools. It can be seen that the proposed novel DGS having Chebyshev distribution provides excellent performances in terms of ripples in the passband, 10-dB return-loss bandwidth (RL-BW), and 20-dB rejection bandwidth, as compared to conventional DGSs and PBGSs. Thus, a perturbed surface below a standard 50Ω microstrip transmission line provides LPF characteristics.

Original language	English
Pages (from-to)	544-550
Number of pages	7
Journal	International Journal of RF and Microwave Computer-Aided Engineering
Volume	15
Issue number	6
DOIs	https://doi.org/10.1002/mmce.20098
State	Published - 11 2005
Externally published	Yes

Keywords

Chebyshev distribution
Deffected ground structure
Electromagnetic-bandgap structures
Passband
Stopband

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10.1002/mmce.20098

Cite this

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title = "Investigation of novel tapered hybrid Defected Ground Structure (DGS)",

abstract = "Novel defected ground structures (DGSs) have been investigated to achieve improved low-pass filter (LPF) properties. A chronological development in designs ranging from conventional square-patterned photonic-bandgap structure (PBGS) and conventional dumbbell-shaped DGS to proposed novel nonuniform DGS has been investigated theoretically and experimentally using computer-aided design (CAD) tools. It can be seen that the proposed novel DGS having Chebyshev distribution provides excellent performances in terms of ripples in the passband, 10-dB return-loss bandwidth (RL-BW), and 20-dB rejection bandwidth, as compared to conventional DGSs and PBGSs. Thus, a perturbed surface below a standard 50Ω microstrip transmission line provides LPF characteristics.",

keywords = "Chebyshev distribution, Deffected ground structure, Electromagnetic-bandgap structures, Passband, Stopband",

author = "Mollah, \{Mohammad Nurunnabi\} and Karmakar, \{Nemai Chandra\} and Fu, \{Jeffrey S.\}",

year = "2005",

month = nov,

doi = "10.1002/mmce.20098",

language = "英语",

volume = "15",

pages = "544--550",

journal = "International Journal of RF and Microwave Computer-Aided Engineering",

issn = "1096-4290",

publisher = "John Wiley and Sons Inc",

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TY - JOUR

T1 - Investigation of novel tapered hybrid Defected Ground Structure (DGS)

AU - Mollah, Mohammad Nurunnabi

AU - Karmakar, Nemai Chandra

AU - Fu, Jeffrey S.

PY - 2005/11

Y1 - 2005/11

N2 - Novel defected ground structures (DGSs) have been investigated to achieve improved low-pass filter (LPF) properties. A chronological development in designs ranging from conventional square-patterned photonic-bandgap structure (PBGS) and conventional dumbbell-shaped DGS to proposed novel nonuniform DGS has been investigated theoretically and experimentally using computer-aided design (CAD) tools. It can be seen that the proposed novel DGS having Chebyshev distribution provides excellent performances in terms of ripples in the passband, 10-dB return-loss bandwidth (RL-BW), and 20-dB rejection bandwidth, as compared to conventional DGSs and PBGSs. Thus, a perturbed surface below a standard 50Ω microstrip transmission line provides LPF characteristics.

AB - Novel defected ground structures (DGSs) have been investigated to achieve improved low-pass filter (LPF) properties. A chronological development in designs ranging from conventional square-patterned photonic-bandgap structure (PBGS) and conventional dumbbell-shaped DGS to proposed novel nonuniform DGS has been investigated theoretically and experimentally using computer-aided design (CAD) tools. It can be seen that the proposed novel DGS having Chebyshev distribution provides excellent performances in terms of ripples in the passband, 10-dB return-loss bandwidth (RL-BW), and 20-dB rejection bandwidth, as compared to conventional DGSs and PBGSs. Thus, a perturbed surface below a standard 50Ω microstrip transmission line provides LPF characteristics.

KW - Chebyshev distribution

KW - Deffected ground structure

KW - Electromagnetic-bandgap structures

KW - Passband

KW - Stopband

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DO - 10.1002/mmce.20098

M3 - 文章

AN - SCOPUS:27844495198

SN - 1096-4290

VL - 15

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JO - International Journal of RF and Microwave Computer-Aided Engineering

JF - International Journal of RF and Microwave Computer-Aided Engineering

IS - 6

ER -

Investigation of novel tapered hybrid Defected Ground Structure (DGS)

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Keywords

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