Design of a Compact Planar Rectenna for Wireless Power Transfer in the ISM Band

Abstract

This paper presents a compact planar rectenna with high conversion efficiency in the ISM band. The proposed rectenna is developed by the decomposing of a planar rectenna topology into two functional parts and then recombining the two parts into a new topology to make the rectenna size reduction. The operation mechanism of the antenna and rectifying circuit in the proposed novel topology is explained and the design methodology is presented in detail. The proposed topology not only reduces the rectenna design cycle time but also leads to easy realization at the required frequency ranges with a very low cost. For validation, a 2.45 GHz rectenna system is designed and measured to show their microwave performances.

MEMS Based RF Energy Harvester for Battery-Less Remote Control: A Review

“…In this research, the antenna impedance is 50 Ohm at the desired frequency of operation. The rectenna design is based on the impedance interface of 50 Ohm (Zulkifli et al, 2015b) for reducing complexity in the total rectenna design system (Zhang et al, 2014b). This system is equipped with a dual band patch receiving antenna, to capture dual frequency band of 1.9 and 2.45 GHz incident RF power radiated by communication and broadcasting systems.…”

A Review on Wireless Power Transfer in Free Space and Conducting Lossy Media

“…For the rectifier circuit, different rectifier diodes were used. Examples can be found in [67] and [68], where (HSMS-8101) and (HSMS2860) Schottky diodes were used, respectively because of their high speed and low voltage drop. A novel wide dynamic range and high-efficiency rectifier was proposed in [69].…”

“…Direct matching between the antenna and rectifier [67] Folded dipole antenna Saves the space of the matching circuit and simplifies the rectenna. The output voltage increases with the number of array elements.…”

Study on Millimeter-Wave Vivaldi Rectenna and Arrays with High Conversion Efficiency

“…To design the rectifying circuit, it is essential to determine the diode's input impedance. At microwave band, the diode's input impedance could be obtained from the closed-form equation [6,7] or the commercial software of ADS (Advanced Design System) and AWR Microwave Office [8][9][10][11], in which the parameters of the diode model provided by the datasheet are accurate. However, at millimeter-wave bands, the equivalent circuit parameters of the diode model are inaccurate and the simulated results will not be precise enough, so the conversion efficiencies of the designed rectifying circuits are low [12][13][14]16].…”

“…Many rectennas at microwave bands have been developed [6][7][8][9][10][11], and the RF-to-DC conversion efficiency can reach about 80% when the rectifying circuits obtain about 100 mW input power. Until now, only a few millimeter-wave rectennas have been reported [12][13][14][15][16], which are listed in Table 1.…”