The 2018 IEEE AP-S Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting will be held on July 8–13, 2018, at the Westin Waterfront hotel in Boston, MA. The combined symposium and meeting are cosponsored by the IEEE Antennas and Propagation Society (AP-S) and the U.S. National Committee (USNC) of the International Union of Radio Science (URSI). The technical sessions, workshops, and short courses will be coordinated between the two organizations to provide a comprehensive and well-balanced program. This combined symposium and meeting is intended to provide an international forum for the exchange of information on state-of-the-art research in antennas, propagation, electromagnetic engineering, and radio science. The paper submission deadline is January 15, 2018.