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Radio Astronomy: A case study in Broadband Electromagnetics

Time: May 31, 2019

地址 Ⅲ-237 in the Building of North Campus 事件时间: 2019-05-31 15:00:00

https://meeting.xidian.edu.cn/uploads/images/201905/1559188381.png

Title:

Radio Astronomy: A case study in Broadband Electromagnetics

Lecturer:

Professor Anthony Keith Brown

Time:

2019-05-31 15:00:00

Venue:

-237in the Building of North Campus

Lecturer Profile

Anthony KeithBrownis an Emeritus Professor at the University of Manchester, UK a visiting professor at Queen Mary, University of London, and the Cavendish Laboratories, University of Cambridge, UK. He was the Chair in Communication Engineering and Head of the School of Electrical and Electronic Engineering at the University of Manchester, UK until 2016.

His research in antennas and propagation has resulted in 130 publications on the subject including five patents and, as co-author, two books. He mainly works in the application of broad band antennas to radar, wireless communication and radio astronomy instrumentation.
He is has been a member of the Square Kilometre Array radio telescope UK research group since 2002. He was also a UK representative to the COST ASSIST action, chairman of the Wireless Friendly Building Group, served on the EUROCAE WG41 standards group and was the only none US citizen serving on the Technical Advisory Commission to the FCC in Washington, D.C.

Prof. Brown has been involved in computational electromagnetics since the 1980’s and received the Founders Award from the Applied Computational Electromagnetics Society (ACES) in 1994.

Prof. Brown has acted as chair to a wide number of international conferences and seminars over his career most recently co-chairing the European Conference on Antennas and Propagation, EUCAP in 2018. He is a past Council member of the Engineering Professors Council, a Fellow of the IET and IMA and a Senior Member of IEEE. He is a member of the IET’s TPN on Antennas and Propagation. He was a founder member of the Engineering and Physical Sciences Research Council (UK) Communications College.

Lecture Abstract

Radio astronomy is increasingly finding new and important scientific phenomena . To achieve this requires more and more sophisticated engineering. For engineers to design and deliver the new generation of radio telescope capability we need to understand, at least in a introductory way, what are the demands of radio astronomy science . From this the radio frequency engineering needed to provide a flexible scientific instrument can be derived in collaboration with the scientific community.

This lecture presents a brief summary of some aspects of radio astronomy and from this the principles of, and challenges for , broadband antenna design are discussed. Some of the broadband antenna principles are derived. As an example the Square Kilometre Array is used with the latest designs of broadband arrays, feeds and reflectors for radio telescope presented.

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