Negative Group Delay Phenomenon Analysis in Power Divider: Coupling Matrix Approach

Girdhari Chaudhary; Yongchae Jeong

doi:10.1109/TCPMT.2017.2696972

Negative Group Delay Phenomenon Analysis in Power Divider: Coupling Matrix Approach

Girdhari Chaudhary
, Yongchae Jeong^*

^*Corresponding author for this work

Division of Electronic Engineering

Jeonbuk National University

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

14 Scopus citations

Abstract

This paper presents a negative group delay (NGD) phenomenon analysis of a power divider using the coupling matrix approach. The proposed power divider can provide an arbitrary power division ratio with a minimal effect on group delay variations. From the analysis, it is found that the proposed circuit can provide positive group delay (PGD) and NGD through different transmission paths. The NGD can be generated without a lumped resistor and can be controlled by source-resonator coupling and unloaded-quality factor (Q_u) of resonators. For experimental validation, power dividers with PGD and NGD of 0.3 and -1 ns, respectively, were designed and fabricated. The measurement results agreed well with the simulation and the predicated values. The proposed power divider topology is useful for the performance improvement of microwave circuits and systems.

Original language	English
Article number	7931604
Pages (from-to)	1543-1551
Number of pages	9
Journal	IEEE Transactions on Components, Packaging and Manufacturing Technology
Volume	7
Issue number	9
DOIs	https://doi.org/10.1109/TCPMT.2017.2696972
State	Published - 2017.09

Keywords

Arbitrary power division ratio
coupling matrix
distributed topology
finite unloaded quality factor resonators
negative group delay (NGD)
positive group delay (PGD)

Quacquarelli Symonds(QS) Subject Topics

Engineering - Mechanical
Materials Science
Engineering - Electrical & Electronic
Engineering - Petroleum

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10.1109/TCPMT.2017.2696972

Cite this

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title = "Negative Group Delay Phenomenon Analysis in Power Divider: Coupling Matrix Approach",

abstract = "This paper presents a negative group delay (NGD) phenomenon analysis of a power divider using the coupling matrix approach. The proposed power divider can provide an arbitrary power division ratio with a minimal effect on group delay variations. From the analysis, it is found that the proposed circuit can provide positive group delay (PGD) and NGD through different transmission paths. The NGD can be generated without a lumped resistor and can be controlled by source-resonator coupling and unloaded-quality factor (Qu) of resonators. For experimental validation, power dividers with PGD and NGD of 0.3 and -1 ns, respectively, were designed and fabricated. The measurement results agreed well with the simulation and the predicated values. The proposed power divider topology is useful for the performance improvement of microwave circuits and systems.",

keywords = "Arbitrary power division ratio, coupling matrix, distributed topology, finite unloaded quality factor resonators, negative group delay (NGD), positive group delay (PGD)",

author = "Girdhari Chaudhary and Yongchae Jeong",

note = "Publisher Copyright: {\textcopyright} 2011-2012 IEEE.",

year = "2017",

month = sep,

doi = "10.1109/TCPMT.2017.2696972",

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journal = "IEEE Transactions on Components, Packaging and Manufacturing Technology",

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T1 - Negative Group Delay Phenomenon Analysis in Power Divider

T2 - Coupling Matrix Approach

AU - Chaudhary, Girdhari

AU - Jeong, Yongchae

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Y1 - 2017/9

N2 - This paper presents a negative group delay (NGD) phenomenon analysis of a power divider using the coupling matrix approach. The proposed power divider can provide an arbitrary power division ratio with a minimal effect on group delay variations. From the analysis, it is found that the proposed circuit can provide positive group delay (PGD) and NGD through different transmission paths. The NGD can be generated without a lumped resistor and can be controlled by source-resonator coupling and unloaded-quality factor (Qu) of resonators. For experimental validation, power dividers with PGD and NGD of 0.3 and -1 ns, respectively, were designed and fabricated. The measurement results agreed well with the simulation and the predicated values. The proposed power divider topology is useful for the performance improvement of microwave circuits and systems.

AB - This paper presents a negative group delay (NGD) phenomenon analysis of a power divider using the coupling matrix approach. The proposed power divider can provide an arbitrary power division ratio with a minimal effect on group delay variations. From the analysis, it is found that the proposed circuit can provide positive group delay (PGD) and NGD through different transmission paths. The NGD can be generated without a lumped resistor and can be controlled by source-resonator coupling and unloaded-quality factor (Qu) of resonators. For experimental validation, power dividers with PGD and NGD of 0.3 and -1 ns, respectively, were designed and fabricated. The measurement results agreed well with the simulation and the predicated values. The proposed power divider topology is useful for the performance improvement of microwave circuits and systems.

KW - Arbitrary power division ratio

KW - coupling matrix

KW - distributed topology

KW - finite unloaded quality factor resonators

KW - negative group delay (NGD)

KW - positive group delay (PGD)

UR - https://www.scopus.com/pages/publications/85019920228

U2 - 10.1109/TCPMT.2017.2696972

DO - 10.1109/TCPMT.2017.2696972

M3 - Journal article

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SN - 2156-3950

VL - 7

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EP - 1551

JO - IEEE Transactions on Components, Packaging and Manufacturing Technology

JF - IEEE Transactions on Components, Packaging and Manufacturing Technology

IS - 9

M1 - 7931604

ER -

Negative Group Delay Phenomenon Analysis in Power Divider: Coupling Matrix Approach

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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