A Compact 2.45-GHz Broadband Rectenna Using Grounded Coplanar Waveguide

Nie, Mei-Juan; Yang, Xue‐Xia; Tan, Guoqiang; Han, Bing

doi:10.1109/lawp.2015.2388789

Cited by 123 publications

(40 citation statements)

References 15 publications

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“…In our design, we keep the rectenna circuit symmetric, avoid discontinuities and fabricate the PCB using milling tools only. While CPW rectenna have been proposed previously [4,[6][7][8], these designs are optimized for high incident power levels and/or use a secondary energy source. In this work, we seek to fabricate a rectenna in CPW dedicated to operation at low power levels near 2.45 GHz and designed towards rectenna array implementation such as in [9].…”

Section: Design Requirements and Substrate Choicementioning

confidence: 99%

An Ism Band Conventional CPW Rectenna for Low Power Levels

Rivière¹,

Douyère²,

Oree³

et al. 2017

PIER C

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Abstract-This paper presents the design and fabrication of a coplanar waveguide (CPW) rectenna using a sequential modular approach. The rectenna is printed on high permittivity, low-loss board ARLON AD1000 ( r = 10.35 and tan δ = 0.0023 @ 10 GHz). The rectifier section is realized with a single reverse-biased schottky diode SMS-7630 in reverse topology for which a diode model is obtained at −20 dBm for frequencies F 0 = 2.45 GHz and 2F 0 = 4.9 GHz. The low-pass filter and the impedance matching are synthesized from passive CPW structures. Co-simulation technique is used to overcome CPW simulation limitations and to integrate the diode characteristics. The antenna consists of a circular slot loop antenna with stub matching such that its input impedance is close to 50 Ω. The goal of this work is to design a rectifier to simplify and speed up the fabrication process of a rectenna array. We reduced the number of processes to etch the rectifier on the board and minimized the number of lumped elements. At −20 dBm, simulation of the rectifier with an ideal impedance matching network shows rectification at 2.45 GHz with efficiency of 12.8%. The rectifier and rectenna show efficiency of approximately 10% at an operating frequency of 2.48 GHz.

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Section: Design Requirements and Substrate Choicementioning

confidence: 99%

An Ism Band Conventional CPW Rectenna for Low Power Levels

Rivière¹,

Douyère²,

Oree³

et al. 2017

PIER C

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show abstract

“…In the design of a rectenna, the two components, namely, the antenna and the rectifying circuit, are usually designed individually and combined together. [9][10][11][12][13] A matching circuit is often needed between the antenna and the rectifying circuit. [14][15][16][17] If we know the working principle of the rectifying circuit connected with an antenna, the matching between the antenna and the rectifying circuit can be achieved without using any matching circuit.…”

Section: Introductionmentioning

confidence: 99%

“…In general, the conversion efficiency of the rectenna is calculated by simulated results or measured results. [9][10][11][12] If the calculation method of the rectenna conversion efficiency is known, the conversion efficiency can be accurately estimated by the calculation with working parameters of the rectifying circuit and the antenna. Besides, in most MPT experiments, the power density irradiated on the receiving aperture is not the same since these experiments are always carried out in the Fresnel zone.…”

Section: Introductionmentioning

confidence: 99%

A method to calculate the conversion efficiency of a rectenna

Wan

Liu

2018

Int J RF Microw Comput Aided Eng

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This article studies the working principle of a rectenna which is a combination of an antenna and a rectifying circuit. In the simulation, the working properties of the rectifying circuit can be represented by two characteristic curves which are extracted from it, and these two curves are independent of the device which is connected with it. The measured results demonstrate that the data calculated by the two curves can be used to accurately describe the conversion efficiency of the rectifying circuit. Furthermore, the two curves are used to represent the rectifying circuit in the calculation of the rectenna conversion efficiency. In addition, with the characteristic impedance of the antenna, the calculation equation is given. In the experiment of the rectenna, the measured conversion efficiency of the rectenna is in agreement with the data calculated by the proposed equation, which proves the accuracy of this method.

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“…In order to design a broadband high-efficiency rectifier, some rectifiers using broadband match network were proposed [7][8][9]. A broadband match network based on grounded coplanar waveguide (GCPW) was designed to extend bandwidth [7].…”

Section: Introductionmentioning

confidence: 99%

“…A broadband match network based on grounded coplanar waveguide (GCPW) was designed to extend bandwidth [7]. The bandwidth of efficiencies higher than 50% was 54.5% (1.6 GHz-2.8 GHz).…”

Section: Introductionmentioning

confidence: 99%

A Broadband High-Efficiency Rectifier Based on Two-Level Impedance Match Network

Li¹,

Yang²,

Liu³

2018

PIER Letters

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Abstract-A broadband high-efficiency rectifier with shunt-diode circuit topological structure is presented in this paper. By utilizing the two-level impedance match network, the rectifier can achieve a high microwave-direct current (mw-dc) conversion efficiency within a broad range of operation bandwidth. A stepped microstrip line and a cross-shaped microstrip stub as two-level match network is designed to extend the operation bandwidth. A cross-shaped stub connected to the capacitances act as a dc-pass filter to block the fundamental frequency wave and the high order harmonics and further improve mw-dc efficiency within a broad bandwidth. Experimental results show that the peak conversion efficiency is 80.3% at the frequency of 1.9 GHz when the input power is 22 dBm. When the input power is 19.5 dBm, the bandwidth of efficiency higher than 70% is 40% (1.80 GHz-2.72 GHz). This rectifier has the characteristics of low profile and easy integration, which is suitable for RFIDs, WSNs, and other applications.

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A Compact 2.45-GHz Broadband Rectenna Using Grounded Coplanar Waveguide

Cited by 123 publications

References 15 publications

An Ism Band Conventional CPW Rectenna for Low Power Levels

An Ism Band Conventional CPW Rectenna for Low Power Levels

A method to calculate the conversion efficiency of a rectenna

A Broadband High-Efficiency Rectifier Based on Two-Level Impedance Match Network

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