Efficient Rectenna Circuit for Wireless Power Transmission

Efficient Rectenna Circuit for Wireless Power Transmission

Anurag Saxena, Paras Raizada, Lok Prakash Gautam, Bharat Bhushan Khare
Copyright: © 2020 |Pages: 9
DOI: 10.4018/978-1-5225-9683-7.ch006
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Abstract

Wireless power transmission is the transmission of electrical energy without using any conductor or wire. It is useful to transfer electrical energy to those places where it is hard to transmit energy using conventional wires. In this chapter, the authors designed and implemented a wireless power transfer system using the basics of radio frequency energy harvesting. Numerical data are presented for power transfer efficiency of rectenna. From the simulated results, it is clear that the anticipated antenna has single band having resonant frequency 2.1 GHz. The anticipated antenna has impedance bandwidth of 62.29% for single band. The rectenna has maximum efficiency of 60% at 2.1 GHz. The maximum voltage obtained by DC-DC converter is 4V at resonant frequency.
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Rectenna Circuit

High density integration technologies have provided immigration from mobile to wearable in information communication system in recent times. In this paper, an anticipated antenna is simulated using slotting techniques on a PCB. They are mostly used at microwave frequencies. A microstrip patch antenna can be a type of metal foil of different design on the face of a PCB, with a ground plane on the other side of the PCB. Microstrip patch antennas have turn into well-liked in modern times by reason of their low weight low shape conformability, easy and cheap realization. The simulations were carried out using IE3D software and design parameters are shown in Table 1. Figure 1 shows the top view of proposed antenna Geometry.

978-1-5225-9683-7.ch006.m01
(1)

The efficiency wireless power system is measure as the power (in %) i.e. transferred from the power source to the received power. The efficiency of harvesting circuit can be measure by eq.(2).

978-1-5225-9683-7.ch006.m02
(2)

  • Pout = DC Power output

  • Pin = DC Power input

Table 1.
Dimension of microstrip antenna
S.NoParameterValue
1Substrate thickness (mm)1.6
2Relative permittivity4.4
3Length of the patch (mm)33.72
4Width of the patch (mm)43.47

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