东南大学学报（自然科学版）2017，Vol.47Issue(5)：856-860,5.DOI:10.3969/j.issn.1001-0505.2017.05.003
一种新型的可配置传输型微带负群时延电路
A novel configurable transmission-type microstrip negative group delay circuit
刘刚 1徐金平1
作者信息
- 1. 东南大学毫米波国家重点实验室,南京210096
- 折叠
摘要
Abstract
A novel lossy microstrip coupled-line resonator section was proposed for the design of transmission-type negative group delay circuit (NGDC).The negative group delay (NGD) value could be flexibly configurable by adjusting the value of the loaded resistor,and the circuit size was reduced by an open radial patch.Theoretical analysis based on an equivalent circuit model shows that the negative group delay and signal attenuation depended on the value of the loaded resistor and the coupling coefficient.The overall microstrip circuits were simulated by three dimensional electromagnetic simulation software.For experimental validation,a prototype of two-stage negative group delay circuit was fabricated and measured.By loading a resistor at a specified point of the coupled-line section with a resistance variation from 100 to 300 Ω,the measured NGD value from-2 to-12 ns and a corresponding signal attenuation from 6 dB to 10 dB are obtained.This novel NGDC features a compact structure,a low signal attenuation and a flexible configuration of NGD value.关键词
传输型/负群时延/有耗耦合谐振单元/可配置Key words
transmission-type/negative group delay (NGD)/lossy coupled-line resonator section/configurable分类
信息技术与安全科学引用本文复制引用
刘刚,徐金平..一种新型的可配置传输型微带负群时延电路[J].东南大学学报（自然科学版）,2017,47(5):856-860,5.
