Design, Modeling and Synthesis of Negative Group Delay IL-Shape Topology

被引：3

作者：

Ravelo, Blaise ^{[1
]}

Li, Ningdong ^{[1
]}

Wan, Fayu ^{[1
]}

Feng, Jiao ^{[1
]}

机构：

[1] NUIST, Nanjing 210044, Peoples R China

来源：

IEEE ACCESS | 2019年 / 7卷

关键词：

Microwave circuit theory; IL-shape topology; distributed topology; negative group delay (NGD); coupled lines; S-matrix modeling; TRANSMISSION-LINE; REFRACTIVE-INDEX; CIRCUIT; PULSE; PROPAGATION;

D O I：

10.1109/ACCESS.2019.2948843

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper introduces a negative group delay (NGD) theory of passive topology presenting "IL"-shape geometry. The two-port topology is comprised of a coupled line with an open- and stub-loaded terminations. After introduction of the electrical equivalent circuit, the S-parameter modeling of the IL topology is established. The transmission and reflection parameters are analytically expressed. The IL topology NGD characterization is developed in function of the design parameters. The relevance of the NGD theory is verified with fully distributed and compact prototypes implemented in microstrip technology. The tested results confirm the possibility to generate bandpass NGD function with IL topology. The calculated model, simulation and measurements are in very good correlation. Validation results showing center frequencies at about 1.55 GHz and 3.55 GHz with NGD level better than -1 ns over 30 MHz bandwidth. The IL NGD prototypes present transmission and reflection coefficients better than -3 dB and -10 dB, respectively.

引用

页码：153900 / 153909

页数：10

共 39 条

[1] Synthesis for Negative Group Delay Circuits Using Distributed and Second-Order RC Circuit Configurations [J].