Antennas for Wireless Sensors

Summary

This chapter provides an overview of the antennas, their design principles, uses, and the recent breakthroughs that are driving innovation in wireless sensor networks. It discusses the sensors using wireless medium where antennas play an important role. Wireless sensing is an essential technology that leverages electromagnetic (EM) signal fluctuations to detect environmental changes caused by the specific motion of interest. In all multi‐modal wireless sensing applications, the antennas serve as a key interface between EM waves and the physical world. The chapter also provides a brief introductory view of some important antenna parameters adhered to wireless sensing. The knowledge of potential frequency bands for wireless sensing unveils a multitude of possibilities that encompass a wide range of wireless sensing applications. The chapter discusses some key techniques used in the fabrication of antennas. They are: printed circuit board antennas; on‐chip and integrated antenna fabrication; and stitching and embroidery for flexible textile antennas.