ABSTRACT
As wireless communications continue to grow in importance by providing exciting new services beyond the conventional voice and text-only communications, antenna systems must evolve in order to keep up with ever increasing requirements and technical challenges. This chapter deals with recent advances and innovations in antenna systems for communications. It examines the design of multiple antenna systems, focusing on the optimisation of antenna performance using decoupling techniques. The chapter explores the topic of smart reconfigurable antennas, where antennas are designed to be frequency reconfigurable to fulfill extreme bandwidth requirements of long-term evolution systems. It then focuses on RFID and sensor antenna innovations, with different antenna design and modelling issues discussed for a variety of applications, with operations in high frequency, ultra high frequency, and ultra-wideband bands. The chapter also deals with the holistic characterisation and measurement of antenna performance.
