High efficiency C-band 1000 element rectenna array for microwave powered applications

Bharj, Sarjit S.; Camisa, R.L.; Grober, S.; Wozniak, F.; Pendleton, E.

doi:10.1109/mwsym.1992.187972

Cited by 22 publications

(6 citation statements)

References 2 publications

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“…The angle φ is measured with respect to the x-axis, as indicated in Figure 10. Figures 11,12,and 13 show the efficiency of the antenna array and the SRR array for incidence angles of 30 • , 45 • , and 60 • , respectively. Table 1 summarizes the numerical simulation results.…”

Section: Srr Array Vs Patch Antenna Arraymentioning

confidence: 99%

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Complementary split ring resonator arrays for electromagnetic energy harvesting

Alavikia

Almoneef

Ramahi

2015

Applied Physics Letters

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By virtue of their ability to resonate at a wavelength much larger than the maximum dimension, Split-Ring Resonator (SRR) cells can be densely stacked to create energy harvesting arrays having per-unit-area power efficiency higher than a single SRR cell. While the concept of using metamaterial particles for electromagnetic energy harvesting had been demonstrated in our earlier work, the overall efficiency of an SRR array in comparison to classical antenna arrays is fundamental to the viability of this technology. In this work, we focus on a comparative study based on numerical fullwave simulations where an array of SRRs is compared to an array of microstrip antennas. We show that an SRR array can provide significant enhancement in power efficiency and bandwidth in comparison to the classical microstrip patch antenna. Experimental validation is provided showing SRR arrays can provide significant energy-absorption enhancement.

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Section: Srr Array Vs Patch Antenna Arraymentioning

confidence: 99%

“…This rectenna array was comprised of 1000 dipole antennas feeding rectifier circuits with silicon quad-bridge Schottky diodes having high reverse voltage. The diodes had the advantage of higher power-handling capabilities than those of the previously used GaAs diodes [12], thus achieving conversion efficiencies exceeding 80%.…”

Section: Introductionmentioning

confidence: 99%

Complementary split ring resonator arrays for electromagnetic energy harvesting

Alavikia

Almoneef

Ramahi

2015

Applied Physics Letters

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“…We measured both the conversion and overall (total) efficiency of the rectifiers, defined as [9] (4)…”

Section: Rectifiermentioning

confidence: 99%

A planar 4.5-GHz DC-DC power converter

Djukic

Maksimović

Popović³

1999

IEEE Trans. Microwave Theory Techn.

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In this paper, we present two dc-dc converters that operate at a microwave frequency. The first converter consists of a Class-E switched-mode microwave amplifier, which performs the dc-ac conversion, and two half-wave diode rectifier outputs. The Class-E MESFET amplifier has a maximum power-added efficiency of 86%, corresponding drain efficiency of 95%, and 120 mW of output power at 4.5 GHz. The diode rectifier has a maximum conversion efficiency of 98% and an overall efficiency of 83%. The second converter consists of a high-efficiency Class-E oscillator and a diode rectifier. The Class-E oscillator has a maximum efficiency of 57% and maximum output power of 725 mW. The dc-dc converter is planar and compact, with no magnetic components, and with a maximum overall dc-dc conversion efficiency of 64% for a dc input of 3 V, and the output voltage across a 87-load of 2.15 V.

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“…The new rectenna array is designed with large-scale manufacturability and simplicity in mind. Most examples of rectenna arrays approaching a size of 1 m × 1 m in the literature appear to involve the manual assembly of individual rectenna elements [8], [32], [72], [73] and the suspension of elements λ/4 above a metallic reflector [8], [32], [72], [73], [74]. The design presented here employs modular printed-circuit-board (PCB) tiles, which are more conducive to large-scale manufacturability and ease of repair.…”

Section: Introductionmentioning

confidence: 99%

Scalable, High-Sensitivity X-Band Rectenna Array for the Demonstration of Space-to-Earth Power Beaming

et al. 2021

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This paper presents a large, modular X-band rectenna array developed for the planned demonstration of a space-to-Earth power beaming link operating at 10 GHz. The array is composed of 16 tiles assembled into a panel greater than 1 m × 1 m in size. To accommodate tests during the early development and construction of the space-based transmitter, the rectenna cells are designed to maximize performance at low power densities using commercial-off-the-shelf Schottky diodes. To increase efficiency at the expense of some field-of-view, each rectenna cell employs a 4-antenna subarray to feed a single diode. Array performance is validated over a 30-dB range of power densities from 1 mW/m 2 to 1 W/m 2 , reaching a total rectenna efficiency in excess of 39% at 1 W/m 2. The rectenna array's field of view, defined by the 3-dB beamwidth of its antenna subarray, is 36 • × 36 •. The DC power collected by each tile is combined in a reconfigurable manner to control the output voltage level for the protection of electrical loads. These results are expected to directly influence the first demonstrations of space-to-Earth power transfer. INDEX TERMS Wireless power transmission, rectennas, solar power, satellites. FIGURE 2. Block diagram of the rectenna topology used in this paper. This topology is based on the original rectenna designs by William Brown [4]-[8].

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High efficiency C-band 1000 element rectenna array for microwave powered applications

Cited by 22 publications

References 2 publications

Complementary split ring resonator arrays for electromagnetic energy harvesting

Complementary split ring resonator arrays for electromagnetic energy harvesting

A planar 4.5-GHz DC-DC power converter

Scalable, High-Sensitivity X-Band Rectenna Array for the Demonstration of Space-to-Earth Power Beaming

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