ISAPE, a serial symposium on AP and EM Theory, always offers an active forum for exchanging creative ideas and experiences of the latest developments, designs in the areas of antennas, propagation, and electromagnetic theory for professors, researchers, engineers and excellent students all over the world. ISAPE 2012 will be held in Xi’an, China. All prospective papers in the areas of antennas, propagation, electromagnetic theory, computational electromagnetic, and EMC are welcome. All papers accepted will be included in IEEE Xplore and indexed by the INSPEC database and EI Compendex.