scholarly journals Encryption Techniques and Wireless Power Transfer Schemes

2018 ◽  
Vol 9 (1) ◽  
pp. 183
Author(s):  
Nur Hazwani Hussin
Keyword(s):  
Electromagnetic Radiation ◽  
Near Field ◽  
Wireless Power Transfer ◽  
Capacitive Coupling ◽  
Far Field ◽  
Power Transfer ◽  
Wireless Power ◽  
Resonant Coupling ◽  
Coupling Technique ◽  
Main Factors

<p>Wireless power transfer (WPT) is one of the most useful ways to transfer power. Based on power transfer distances, the WPT system can be divided into three categories, namely, near, medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT. Magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. This paper reviews the techniques used in WPT. In addition, energy encryption plays a major role in ensuring that power is transferred to the true receiver. Therefore, this paper reviews the energy encryption techniques in WPT. A comparison between different techniques shows that the distance, efficiency, and number of receivers are the main factors in selecting the suitable energy encryption technique.</p>

scholarly journals Wireless Power Transfer Through Simultaneous Near-Field Focusing and Far-Field Synthesis

2019 ◽  
Vol 67 (8) ◽  
pp. 5623-5633 ◽  
Author(s):  
Rafael Gonzalez Ayestaran ◽  
German Leon ◽  
Marcos R. Pino ◽  
Paolo Nepa
Keyword(s):  
Near Field ◽  
Wireless Power Transfer ◽  
Far Field ◽  
Power Transfer ◽  
Wireless Power

scholarly journals Wireless Power Transfer

2021 ◽  
Author(s):  
Colin Sokol Kuka
Keyword(s):  
Power Transmission ◽  
Near Field ◽  
Wireless Power Transfer ◽  
Far Field ◽  
Power Transfer ◽  
Wireless Power ◽  
Remote Locations ◽  
Consumer Electronic ◽  
Wireless Charge ◽  
The Internet Of Things

In the recent years, the wireless power transfer technique has attracted a lot of attention in research. As a result, it is becoming an increasingly popular technology in consumer electronic devices and electric vehicles. However, there are other methods in which energy could be transmitted, and they could be further classified according to their working ranges, namely the near-field and the far-field transmission. In this chapter, an overview on the principles of different types of wireless power transmission is described. Then, the investigation of the receiver block is discussed through studying the features of rectifier technologies. Later, the book continues to describe the Rectenna system (rectifying antenna) adopted to the Internet of Things (IoT) wireless charge in remote locations.

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