Office Held

IEEE MTT/AP Hong Kong Chapter, Chairman (2010-2011), Vice Chairman (2008-2009), Secretary(2006-2007), Treasurer (2004-2005), Executive Member (2000-2003)

IEEE MTT-S AdCom Committee, Transnational Committee Region 10 Vice Coordinator (since 2008)

IEEE MTT-S AdCom Committee, Membership Services Region 10 Coordinator (since 2009)

IEEE MTT-S AdCom Committee, Regional Initiatives/China Initiatives (Ad Hoc) (since 2009)

Editorial Duty

Associate Editor, IEEE Transactions on Microwave Theory and Techniques

Associate Editor, IEEE Transactions on Industrial Electronics

Editor, International Journal of Antennas and Propagation

Conference Committee

Chariman of TPC, International Workshop on Antenna Technology 2011, Hong Kong, Mar. 2011

TPC Member, International Microwave Symposium 2011(IMS2011)

Chariman of TPC, International Symposium on Antenna and Propagation 2010, Macao, Nov. 2010

TPC Member, IEEE MTT-S International Microwave Symposium 2007

Deputy Chairman of TPC, Asia Pacific Microwave Conference 2008, Hong Kong, Dec. 2008

TPC Session Chair, Asia Pacific Microwave Conference 2009, Singapore, Dec.,2009

TPC Member, 2008 IEEE MTT-S IMWS on Art of Miniaturizing RF and Microwave Passive Components, Chengdu, China, Dec. 2008

Conference Co-Chair, 2008 Global Chinese Microwave Summit 2008, Nov.,2008

International Steering Committee Member, 2008 Global Symposium On Millimeter Wave, Apr., 2008

TPC Co-Chair, 3^rd International Laser, Long-wave and Microwave Conference, 2008, Yokohama

Vice TPC Chairman, The 2005 Microwave and Millimeter-Wave Symposium of China

Reviewers of Journals

IEEE Transactions on Industrial Electronics

Journal Microwave and Optical Technology

IEEE Transactions on Microwave Theory and Techniques;

IEEE Transactions on Antennas and Propagation.

IEEE Microwave and Wireless Components  Letters；

IET Electronics Letters;

IET Proceedings Microwaves, Antennas & Propagation;

IEEE Transactions on Circuits and Systems I;

IEICE Transactions on Electronics.

Radio Science

Solid-State Electronics

International Journal of Antennas and Propagation