权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Improvements in group delay characteristics based on the w-analysis of electro-magnetic waves and semianductonr devices

基于电磁波和半导体器件的w分析改进群延迟特性

基本信息

批准号：
18560329
负责人：
HONJO Kazuhiko
金额：
$ 2.53万
依托单位：
The University of Electro-Communications
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

项目摘要

Suppression of the group delay dispersions for RF components is one of the most important issues for realizations of UWB (Ultra Wide Band) radio system. For that purpose, as the first step, a co-simulation technique between the Maxwell's equations and the semiconductor device equations has been developed based on the FDTD method. Using the method, a 60 GHz amplifier module consisting of PDTL(Planar Dielectric Transmission line) waveguides and a HEMT device has been co-simulated as the first trial, where crystal structures for the compound semiconductor material and the millimeter-wave waveguides were simultaneously analyzed. Simulated results and measured results for the module were in good agreements. Thus the method has been successfully applied to the microwave characteristics analysis of long finger structures for InGaP/GaAs HBT's and A1GaN/GaN HEMT's. As the second step, the group delay generation origin was investigated in a viewpoint of the circuit technology, including both lumped element circuits and distributed circuits. The second step delivered a successful realization of fully distributed circuit switch MMIC with low group delay dispersion& Also a novel group delay compensation circuit topology based on the composite right hand/left band concept was realized. Also the minimum sized broadband planar self-complementary antenna was realized. As the final step, both an InGaP/GaAs HBT ultrabroad band amplifier with an active balun and a group delay compensation MMIC were designed, fabricated and tested. It has been demonstrated that the amplifier group delay was successfully suppressed. The MMIC can be used as a driver amplifier far UWB self-complementary antennas.

抑制射频组件的群延迟色散是实现超宽带（UWB）无线电系统的关键问题之一。为此，首先提出了基于时域有限差分法的麦克斯韦方程组与半导体器件方程的联合仿真技术。利用该方法对一个由PDTL（Planar介电传输线）波导和HEMT器件组成的60 GHz放大器模块进行了首次联合仿真，同时对复合半导体材料和毫米波波导的晶体结构进行了分析。该模块的仿真结果与实测结果吻合良好。该方法已成功应用于InGaP/GaAs HBT和A1GaN/GaN HEMT长指结构的微波特性分析。第二步，从电路技术的角度研究了群延迟产生的根源，包括集总元件电路和分布式电路。第二步成功实现了低群延迟色散的全分布式电路开关MMIC，并实现了一种基于左/右复合带概念的群延迟补偿电路拓扑结构。实现了最小尺寸的宽带平面自互补天线。最后，设计、制作并测试了具有有源平衡器的InGaP/GaAs HBT超远带放大器和群延迟补偿MMIC。实验结果表明，该方法能够有效地抑制放大器群延迟。MMIC可以用作远超宽带自互补天线的驱动放大器。