Dynamic Pivoting Antenna-Module-Based Flexural Wireless Power Charger for Various Wireless Sensor

Abstract

IoT is one of the popular topics for the past few years. The study achieves the data in the internet collecting and sharing by data transmission wired or wireless from information carriers. In most of IoT application, the main information devices are embedded systems and micro sensors. Due to the hardware limitations, most of information devices use the wireless transmission to do the data exchange like Wi-Fi, NFC, and Bluetooth. However, most of these devices are powered by batteries. In the other words, there are some problems that the user has to face: time limit, hard to replace batteries, and different specifications. In order to solve these problems, a dynamic antenna-based wireless power charger based on electromagnetic coupling of coil is proposed to replace traditional batteries in this chapter. Flexible printed circuit can allow the user changes in the circuit into a suitable shape by cutting, reversing, and coiling. In this way, the user can improve the electricity supply effect by adjusting the power of wireless transmission.