This book presents the design requirements of antenna integration for
modern commercial devices such as smartphones, dongles, and access
points. Practical use-case scenarios of smartphone and the design
process of the antenna system for the same are highlighted. The
feasibility of scaling up sub-6GHz to mmWave antennas is also discussed
in detail followed by a plethora of design examples which could be panel
mounted to modern-day commercial smartphones. The unique requirement of
gain switchability is introduced with feasible practical antenna
designs. High efficiency antennas for 5G base stations is introduced
along with a design example on planar all-metallic antenna. Beam
switchability requirement for base station is illustrated with a couple
of compact antenna system examples. Variety of feeding techniques for
mmWave antennas is elaborated in this book. Finally, low-cost antenna
designs for future wireless devices are illustrated.