[1]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.[doi:10.3969/j.issn.1001-0505.2017.05.003]
 Liu Gang,Xu Jinping.A novel configurable transmission-type microstrip negative group delay circuit[J].Journal of Southeast University (Natural Science Edition),2017,47(5):856-860.[doi:10.3969/j.issn.1001-0505.2017.05.003]
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一种新型的可配置传输型微带负群时延电路()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第5期
页码:
856-860
栏目:
电气工程
出版日期:
2017-09-20

文章信息/Info

Title:
A novel configurable transmission-type microstrip negative group delay circuit
作者:
刘刚徐金平
东南大学毫米波国家重点实验室, 南京 210096
Author(s):
Liu Gang Xu Jinping
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
关键词:
传输型 负群时延 有耗耦合谐振单元 可配置.
Keywords:
transmission-type negative group delay(NGD) lossy coupled-line resonator section configurable.
分类号:
TM131.4
DOI:
10.3969/j.issn.1001-0505.2017.05.003
摘要:
提出了一种基于有耗微带耦合谐振单元的传输型负群时延电路,该电路利用电阻加载的方式实现负群时延值的灵活调节.微带耦合谐振单元电路中采用了开路扇形线结构,有效减小了电路尺寸.基于有耗耦合线谐振单元的等效网络模型,分析了加载电阻及耦合系数对信号传输及负群时延特性的影响,并对整体微带电路进行了三维电磁仿真分析.设计加工了一款两级传输型负群时延电路实验样品,在耦合谐振器特定位置分别加载100~300 Ω范围内不同阻值电阻的状态下,对该电路的群时延特性进行了测试.结果表明:在中心频率1.79 GHz附近,该电路可配置获得-2~-12 ns的负群时延值,其最大信号衰减在6~10 dB范围内.这种新型的负群时延电路具有结构紧凑、信号衰减小、负群时延值可灵活配置等优点.
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.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017-03-06.
作者简介: 刘刚(1984—),男,博士生;徐金平(联系人),男,博士,教授,博士生导师,jpxu@seu.edu.cn.
引用本文: 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. DOI:10.3969/j.issn.1001-0505.2017.05.003.
更新日期/Last Update: 2017-09-20