学术报告:Circuit and Network Approaches for Modeling and Designing Microwave Planar Filtering Structures
发布时间: 2017-07-01 浏览次数: 13 文章来源: 电子科学与工程学院

主讲人:Prof. Jiasheng Hong, Doctor of Philosophy (Oxford), Fellow of IEEE

时间:201774日(周15:30-17:00

地点:仙林校区电子学科楼223会议室

主办单位:电子科学与工程学院

  

讲座简介:

Equivalent circuits and networks can be very useful for the development of microwave planar filters. In this talk, several typical examples will be addressed. This includes a general circuit model for planar transmission line defected ground structures that exhibits multiple electromagnetic band gaps or stop bands in frequency responses. Another equivalent circuit of cross-coupled resonator filter with a transmission line-inserted inverter is introduced to investigate a generalized configuration of transmission line filter for realization of different advanced filtering characteristics. Narrowband cross-coupled filter designs are usually based on design parameters such as the coupling coefficient and external quality factor. To this end, equivalent circuit models can be deployed to establish useful relationships to extract these design parameters from full-wave EM simulated responses. Examples will be given for a demonstration. Lumped-element equivalent circuits are useful for developing miniature multilayer filters. More miniature filters of this type will be presented.


主讲人简介:

Hong Jiasheng, IEEE fellow, is a professor of the Department of Electrical, Electronic and Computer Engineering at Heriot-Watt University, Edinburgh, U.K., where he is currently leading a team for research into advanced RF/microwave device technologies. He has authored and co-authored over 200 journal and conference papers and two books, Microstrip Filters for RF/Microwave Applications (Wiley, 2001, 1st ed., 2011, 2nd ed.) and RF and Microwave Coupled-Line Circuits, Second Edition (Artech House, 2007). His current interests involve RF/microwave devices, such as antennas and filters, for wireless communications and radar systems, as well as novel material and device technologies including multilayer circuit technologies using package materials such as liquid crystal polymer, RF MEMS, ferroelectric and high-temperature superconducting devices.Dr.Hong is currentlyserving as Associate Editor of Microwave Theory and Techniques (MTT).