Planar Antenna Design for Internet of Things Applications

Abstract

Planar antenna plays an important role in Internet of Things (IoT) applications because of its small size, low profile and low cost. In IoT wireless module, antenna is typically occupied one-third size of overall circuit; therefore, planar antenna, i.e., integrated on printed circuit board (PCB) is one of attractive design. In this chapter, the fundamental of antenna is firstly discussed. Printed Inverted-F Antenna (PIFA) is taken as an example to explain the design process of simple planar antenna and a size-reduced 2.4 GHz ISM band PIFA is used for experimental explanation for the short-range IoT applications. Finally, a wideband antenna is shown as wideband planar antenna for short-range and long-range IoT applications.

Flexible and frequency reconfigurable CPW-fed monopole antenna with frequency selective surface for IoT applications

“…Recently, IoT has become an evolutional technology that aims to ease communication between human beings and their surrounding environment. The IoT merges the human and his surrounding wireless devices and sensors in a single network in real-time [1][2][3][4] . The IoT technology put big challenges on the working communications systems as a huge amount of data is required to be transferred between the wireless nodes connected to the network 5 .…”

“…The antenna is characterized by its large size with respect to other components, and it will be impractical to design an antenna for each frequency band on the same platform. For these reasons, a careful design of an antenna that can satisfy the requirements of the next IoT technologies is a vital necessity 4 . One of the successful choices that satisfy the requirements of IoT applications is the reconfigurable antennas [6][7][8] .…”