A compact dual-polarized 8.51-GHz rectenna for high-voltage (50 V) actuator applications

Epp, L.; Khan, A.R.; Smith, H.K.; Smith, R.P.

doi:10.1109/22.817479

Cited by 98 publications

(48 citation statements)

References 15 publications

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“…Compared to the results for the efficiency (63.2% at 8.51 GHz [7] and 21% at 9.3 GHz [8]), the efficiency of the RF-DC conversion circuit proposed in this paper is higher than that in the papers referred to for the X-band frequency. And, the proposed rectifying circuit was measured and found to have a maximum 71.9% efficiency and more than 50% over the 1 GHz frequency range, as shown in (b) (a) Figure 15.…”

Section: Experimental Results For the Rectifying Circuitcontrasting

confidence: 74%

“…Therefore, there have been tradeoffs of choosing the frequency for microwave powered aerial vehicle (MPAV) systems, which operate at X-band with a compact size and light weight [6]. For the polarization diversity, compactness, and thermal management, a dual-polarized rectenna array was demonstrated at X-band to drive a high voltage actuator [7]. A low-cost planar rectenna with a FR4 substrate and a surface-mounted Schottky barrier diode was tested and found to have a low η RF−DC of about 21% [8].…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1 shows a general configuration of the rectenna, which consists of an antenna, a rectifying circuit, and a load. The nonlinear characteristics of diodes generate unwanted harmonic signals that propagate backward to the antenna and forward to the load; therefore, a harmonic rejection filter, a DC-pass filter, and a matching circuit for the diode impedance should be carefully designed to obtain an optimized η RF−DC [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Compact and Wideband Circularly Polarized Rectenna With High Efficiency at X-Band

Shin¹,

Seo²,

Choi³

et al. 2014

PIER

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Abstract-A new design for a compact and wideband circularly-polarized rectenna with high efficiency operating at X-band is proposed. A dual-slot coupled antenna excited by an H-shaped slot fed by a T-shaped microstrip is designed to yield wideband performance as a receiving array antenna. Rectifying circuit models for harmonic suppression circuit, impedance matching, DC-pass circuit, and DC return circuit at the input and output of the diode are built up and optimized to transfer the maximum power from the antenna to the load using an ADS circuit simulator. An RF-DC conversion efficiency of 71.9% is measured on the conditions of 300 Ω load, and 50.1 mW RF input power at 9.5 GHz operating frequency. For the proposed wideband rectenna, the efficiency of more than 50% is measured over a 1 GHz frequency bandwidth. The measured gain, axial ratio, and return loss of the circularly polarized antenna with a 4-element array are 11.2 dBi, 1.1 dB, and −16.4 dB, respectively. The reflection coefficient of the array antenna is measured at less than −10 dB over a wide frequency range of about 2 GHz. Using this antenna as transmitting (TX) and receiving (RX) radiators, the free-space power transfer capability of the rectenna is tested in free space to turn on an LED at 25 cm distance.

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Section: Experimental Results For the Rectifying Circuitcontrasting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Compact and Wideband Circularly Polarized Rectenna With High Efficiency at X-Band

Shin¹,

Seo²,

Choi³

et al. 2014

PIER

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“…Developing rectennas to achieve the best efficiency, researchers made efficiency improvements during 1992-1994, concentrating on 2.45 and 35 GHz [9][10][11][12]. In 2000, at the Jet Propulsion Laboratory (JPL), based on the availability of the high power X-band sources an experiment of 8.51 GHz was held [13]. Most of the works done in MW-WPT have concentrated on the 2.450 GHz Industrial, Scientific and Medical (ISM) band frequency due to its power transmission efficiency and relatively lower human health concerns [7] [14][15].…”

Section: List Of Abbreviationsmentioning

confidence: 99%

Efficiency Assessment for Indoor Microwave Wireless Power Transmission Systems

Bahrampour¹,

Amca²

2015

IJOEE

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Keeping the power hungry, smart wireless communication devices up and running became a challenging issue due to the need for continuous supply of battery power required for fulfilling all the functions. Since the battery capacity is limited, it needs to be recharged as often as possible. Hence, rather than spreading wires all around, it is a promising solution to cover the medium with electricity wirelessly or create charging points around residential premises based on Wireless Power Transmission technology. The work presented here involves investigation of the possibility of providing wireless charging points within a room and analyzing the choice of best frequency and best pulse shape for transmitting power wirelessly within a distance smaller than 10 m in order to charge batteries of such devices as smart phones. The parameters that can be adjusted to maximize efficiency of wireless power transmission and the relationship between the choice of frequency, pulse shape and distance is investigated. Antenna design will be left as a subject for future study.

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“…The microwave transmission often uses 2.45GHz or 5.8GHz of ISM band. The other choices of frequencies are 8.5 GHz [13], 10 GHz [14] and 35 GHz [15]. The highest efficiency over 90% is achieved at 2.45 GHz among all the frequencies [15].…”

Section: Microwave Generatormentioning

confidence: 99%

Wireless Power Transmission - A Next Generation Power Transmission System

Mohammed¹,

Ramasamy²,

Shanmuganantham³

2010

IJCA

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In this paper, we present the concept of transmitting power without using wires i.e., transmitting power as microwaves from one place to another is in order to reduce the transmission and distribution losses. This concept is known as Microwave Power transmission (MPT). We also discussed the technological developments in Wireless Power Transmission (WPT). The advantages, disadvantages, biological impacts and applications of WPT are also presented.

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A compact dual-polarized 8.51-GHz rectenna for high-voltage (50 V) actuator applications

Cited by 98 publications

References 15 publications

A Compact and Wideband Circularly Polarized Rectenna With High Efficiency at X-Band

A Compact and Wideband Circularly Polarized Rectenna With High Efficiency at X-Band

Efficiency Assessment for Indoor Microwave Wireless Power Transmission Systems

Wireless Power Transmission - A Next Generation Power Transmission System

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