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

Choi, Heungjae ORCID: https://orcid.org/0000-0003-1108-293X, Jeong, Yongchae, Lim, Jongsik, Eom, Soon-Young and Jung, Young-Bae 2011. A novel design for a dual-band negative group delay circuit. IEEE Microwave and Wireless Components Letters 21 (1) , pp. 19-21. 10.1109/LMWC.2010.2089675

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	IEEE
ISSN:	1531-1309
Last Modified:	27 Oct 2022 10:08
URI:	https://orca.cardiff.ac.uk/id/eprint/68999

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