35 GHz rectifying antenna for wireless power transmission

Ren, Yu‐Jiun; Li, M.-Y.; Chang, Kai

doi:10.1049/el:20071061

Cited by 49 publications

(26 citation statements)

References 4 publications

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“…The total length of TL5 and TL7 is λ/4 at f 0, so the diode impedance can be transformed to 50 Ω using a quarter wave transformer and a TL8 λ/4 line to cancel the reactive part of the transformed impedance [18]. A different approach is adopted in [19], in which a ring antenna is used with inherent second harmonic rejection property. Similarly, in [20], a combination of an interdigitated capacitor and a chip capacitor not only performs impedance matching but also prevents higher order harmonics from reaching the antenna.…”

Section: Harmonic Suppression Networkmentioning

confidence: 99%

RF Energy Harvesting for Ubiquitous, Zero Power Wireless Sensors

Saeed

Shoaib

Cheema

et al. 2018

International Journal of Antennas and Propagation

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This paper presents a review of wireless power transfer (WPT) followed by a comparison between ambient energy sources and an overview of different components of rectennas that are used for RF energy harvesting. Being less costly and environment friendly, rectennas are used to provide potentially inexhaustible energy for powering up low power sensors and portable devices that are installed in inaccessible areas where frequent battery replacement is difficult, if not impossible. The current challenges in rectenna design and a detailed comparison of state-of-the-art rectennas are also presented.

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Section: Harmonic Suppression Networkmentioning

confidence: 99%

RF Energy Harvesting for Ubiquitous, Zero Power Wireless Sensors

Saeed

Shoaib

Cheema

et al. 2018

International Journal of Antennas and Propagation

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show abstract

“…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. The reported CPS (coplanar strip line) rectenna and patch rectenna operated at 35 GHz obtain the measured conversion efficiencies of 38% and 29%, respectively, when the input MMW power is 120 mW [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…To obtain the enough input power for the rectifying circuit, the transmitted millimeterwave power is high for the above two rectennas because of the low gain of the receiving antennas. In order to lessen the transmitting power demand and supply the required input power for the rectifying circuit, the 1 × 2 antenna array is designed for the rectifying circuit [14]. The rectenna element and the 2 × 2 series array obtain an efficiency of 35% when the power density is 30 mW/cm 2 .…”

Section: Introductionmentioning

confidence: 99%

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

Tan

Yang

Mei

et al. 2016

International Journal of Antennas and Propagation

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A novel Vivaldi rectenna operated at 35 GHz with high millimeter wave to direct current (MMW-to-DC) conversion efficiency is presented and the arrays are investigated. The measured conversion efficiency is 51.6% at 35 GHz and the efficiency higher than 30% is from 33.2 GHz to 36.6 GHz when the input MMW power is 79.4 mW. The receiving Vivaldi antenna loaded with metamaterial units has a high gain of 10.4 dBi at 35 GHz. A SIW-(substrate integrated waveguide-) to-microstrip transition is designed not only to integrate the antenna with the rectifying circuit directly but also to provide the DC bypass for the rectifying circuit. When the power density is 8.7 mW/cm 2 , the received MMW power of the antenna is 5.6 mW, and the maximum conversion efficiency of the rectenna element is 31.5%. The output DC voltage of the element is nearly the same as that of the parallel array and is about half of the series array. The DC power obtained by the 1 × 2 rectenna arrays is about two times as much as that of the element. The conversion efficiencies of the arrays are very close to that of the element. Large scale arrays could be expended for collecting more DC power.

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“…[17], [18]. Designed rectennas at 35GHz have already earned 72% RF to DC power conversion efficiency [13].…”

Section: Introductionmentioning

confidence: 99%

Millimeter-Wave Energy Harvesting Using <formula formulatype="inline"><tex Notation="TeX">$4\times4$</tex></formula> Microstrip Patch Antenna Array

Mavaddat¹,

Armaki²,

Erfanian³

2015

Antennas Wirel. Propag. Lett.

105

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In this paper an energy harvester at 35GHz has been developed which known as rectenna. An array of rectangular microstrip patch antenna with 16 elements was used to efficiently convert RF to DC signal. A step impedance low pass filter is used between antenna and rectifier circuit to suppress second order harmonic generated by diode. A GaAs Schottky diode MA4E1317 was used in parallel with load as half wave rectifier circuit. The fabrication process is based on conventional optical photolithography to obtain an integrated circuit. The maximum RF to DC conversion efficiency of 67% was successfully achieved with input RF power of 7mW at 35.7GHz.

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35 GHz rectifying antenna for wireless power transmission

Cited by 49 publications

References 4 publications

RF Energy Harvesting for Ubiquitous, Zero Power Wireless Sensors

RF Energy Harvesting for Ubiquitous, Zero Power Wireless Sensors

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

Millimeter-Wave Energy Harvesting Using <formula formulatype="inline"><tex Notation="TeX">$4\times4$</tex></formula> Microstrip Patch Antenna Array

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