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2019-07-21

A Compact Dispersive Delay Line Using Microstrip Lines and Opened Slot Lines

By Yujie Li, Jiade Yuan, Shiji Wu, and Zhimeng Xu
Progress In Electromagnetics Research Letters, Vol. 86, 7-12, 2019
doi:10.2528/PIERL19050406

Abstract

A dispersive delay line (DDL) with compact size, good group delay, and all pass response in 200-800 MHz band is presented. The proposed DDL is composed of a main microstrip transmission line with two shunted open stubs and two complementary slot lines, and a coupling slot line in ground plane. The length of the complementary slot line is reduced approximately from λg/2 to λg/4 through the upper end being opened, hence achieves miniaturization for the proposed DDL (λg is the guided wavelength at the center frequency). The overall area is 0.196×0.093λg2 with a peak group delay time of 3.2 ns. The proposed DDL has the advantages of compactness, good capability, and easy fabrication without any external matching network.

Citation


Yujie Li, Jiade Yuan, Shiji Wu, and Zhimeng Xu, "A Compact Dispersive Delay Line Using Microstrip Lines and Opened Slot Lines," Progress In Electromagnetics Research Letters, Vol. 86, 7-12, 2019.
doi:10.2528/PIERL19050406
http://www.jpier.org/PIERL/pier.php?paper=19050406

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