The 2010 International Symposium on Antennas and Propagation (ISAP 2010), co-organized by the Wireless Communication Laboratory of the Faculty of Science and Technology of the University of Macau, the State Key Laboratory of Millimeter Waves of City University of Hong Kong, and the Bureau of Telecommunications Regulation, supported by the Science and Technology Development Fund, and gold-sponsored by Rohde & Schwarz, opened at 23 November and will end on 26 November 2010. The symposium aims to serve as a platform for the exchange of information on state-of-the-art research in all the related topics as well as to continue and accelerate the momentum of research in antenna and propagation areas, so as to improve the local telecommunication industry and academic development.