Rectennas for Microwave-Based Wireless Power Transfer (WPT)

Rectennas for Microwave-Based Wireless Power Transfer (WPT)

Mukesh Kumar Khandelwal (Bhagwan Parshuram Institute of Technology, India)
Copyright: © 2019 |Pages: 21
DOI: 10.4018/978-1-5225-5870-5.ch007

Abstract

Electromagnetics has an important role in power and energy industry. In this chapter, the concept of rectenna is reviewed. The history of rectenna for wireless energy harvesting and transmission is discussed. Finally, examples are employed to illustrate some rectenna design and measurement issues such as rectenna impedance matching and its conversion efficiency. It is also shown that rectennas can harvest wireless energy efficiently under certain conditions and have the potential to become a power supplier for some special applications.
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Classification Of Power Transmission

As we know there are lots of approaches for power transmission and we can divide them in following two major parts:

  • 1.

    Wired Power Transmission

  • 2.

    Wireless Power Transmission (WPT): In Wired Power Transmission System, both point (transmitting and receiving points) are physically connected via conducting media whereas in WPT power is transmitted from one point to another point wirelessly. WPT systems may further divided in following three subsections:

    • a.

      Electromagnetic

    • b.

      Induction

    • c.

      Magnetic. Each subsection is further divided in following sub-parts:

      • i.

        Microwave

      • ii.

        Laser

      • iii.

        Capacitive

      • iv.

        Resonant

      • v.

        5) Inductive

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