A novel design for a dual-band negative group delay circuit

Heungjae Choi; Yongchae Jeong; Jongsik Lim; Soon Young Eom; Young Bae Jung

doi:10.1109/LMWC.2010.2089675

A novel design for a dual-band negative group delay circuit

Heungjae Choi^*
, Yongchae Jeong
, Jongsik Lim
, Soon Young Eom
, Young Bae Jung

^*Corresponding author for this work

Division of Electronic Engineering

Jeonbuk National University
Soonchunhyang University
Electronics and Telecommunications Research Institute

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

47 Scopus citations

Abstract

In this letter, a novel design for a dual-band negative group delay circuit (NGDC) is proposed. Based on the topology of a single-band reflection type NGDC, composite right/left handed λ/4 short stubs are employed to obtain a negative group delay (NGD) at two separate frequency bands simultaneously. In order to achieve a bandwidth extension, the proposed structure consists of a two-stage dual-band NGDC with different center frequencies connected in a cascade. According to the measurements performed for wide-band code division multiple access and worldwide interoperability for microwave access, an NGD of -3.0± 0.4 ns and -3.1± 0.5 ns are obtained at 2.12-2.16 GHz and 3.46-3.54 GHz, respectively.

Original language	English
Article number	5659495
Pages (from-to)	19-21
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	21
Issue number	1
DOIs	https://doi.org/10.1109/LMWC.2010.2089675
State	Published - 2011.01

Keywords

Composite right/left handed (CRLH)
dual-band
negative group delay (NGD)
wide-band code division multiple access (WCDMA)
worldwide interoperability for microwave access (WiMAX)

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum
Physics & Astronomy

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10.1109/LMWC.2010.2089675

Cite this

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title = "A novel design for a dual-band negative group delay circuit",

abstract = "In this letter, a novel design for a dual-band negative group delay circuit (NGDC) is proposed. Based on the topology of a single-band reflection type NGDC, composite right/left handed λ/4 short stubs are employed to obtain a negative group delay (NGD) at two separate frequency bands simultaneously. In order to achieve a bandwidth extension, the proposed structure consists of a two-stage dual-band NGDC with different center frequencies connected in a cascade. According to the measurements performed for wide-band code division multiple access and worldwide interoperability for microwave access, an NGD of -3.0± 0.4 ns and -3.1± 0.5 ns are obtained at 2.12-2.16 GHz and 3.46-3.54 GHz, respectively.",

keywords = "Composite right/left handed (CRLH), dual-band, negative group delay (NGD), wide-band code division multiple access (WCDMA), worldwide interoperability for microwave access (WiMAX)",

author = "Heungjae Choi and Yongchae Jeong and Jongsik Lim and Eom, \{Soon Young\} and Jung, \{Young Bae\}",

year = "2011",

month = jan,

doi = "10.1109/LMWC.2010.2089675",

language = "English",

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journal = "IEEE Microwave and Wireless Components Letters",

issn = "1531-1309",

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AU - Choi, Heungjae

AU - Jeong, Yongchae

AU - Lim, Jongsik

AU - Eom, Soon Young

AU - Jung, Young Bae

PY - 2011/1

Y1 - 2011/1

N2 - In this letter, a novel design for a dual-band negative group delay circuit (NGDC) is proposed. Based on the topology of a single-band reflection type NGDC, composite right/left handed λ/4 short stubs are employed to obtain a negative group delay (NGD) at two separate frequency bands simultaneously. In order to achieve a bandwidth extension, the proposed structure consists of a two-stage dual-band NGDC with different center frequencies connected in a cascade. According to the measurements performed for wide-band code division multiple access and worldwide interoperability for microwave access, an NGD of -3.0± 0.4 ns and -3.1± 0.5 ns are obtained at 2.12-2.16 GHz and 3.46-3.54 GHz, respectively.

AB - In this letter, a novel design for a dual-band negative group delay circuit (NGDC) is proposed. Based on the topology of a single-band reflection type NGDC, composite right/left handed λ/4 short stubs are employed to obtain a negative group delay (NGD) at two separate frequency bands simultaneously. In order to achieve a bandwidth extension, the proposed structure consists of a two-stage dual-band NGDC with different center frequencies connected in a cascade. According to the measurements performed for wide-band code division multiple access and worldwide interoperability for microwave access, an NGD of -3.0± 0.4 ns and -3.1± 0.5 ns are obtained at 2.12-2.16 GHz and 3.46-3.54 GHz, respectively.

KW - Composite right/left handed (CRLH)

KW - dual-band

KW - negative group delay (NGD)

KW - wide-band code division multiple access (WCDMA)

KW - worldwide interoperability for microwave access (WiMAX)

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A novel design for a dual-band negative group delay circuit

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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