5.8-GHz stacked differential mode rectenna suitable for large-scale rectenna arrays

Matsunaga, Tatsuki; Nishiyama, Eisuke; Toyoda, Ichihiko

doi:10.1109/apmc.2013.6695070

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…e second configuration shown in Figure 1(b) combines the rectified DC output voltage of all antennas but reduces the efficiency of the system [23]. International Journal of Antennas and Propagation e proposed rectenna is modelled as a cube with multiband cross-dipole antennas on four sides and FM monopole antenna acting as the hanging structure at the top.…”

Section: System Level Conceptmentioning

confidence: 99%

Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

Khalid

Saeed

Shoaib

et al. 2020

International Journal of Antennas and Propagation

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This paper presents a quad-band, 3D mountable rectenna module for ambient energy harvesting. With the aim of powering up Internet of Things (IoT) nodes in practical ambient environments, a hybrid approach of combining power, both at RF and DC, is adopted using 98 MHz FM band, GSM900 (Global System for Mobile Communications), GSM1800, and Wi-Fi 2.4 GHz band. A dual polarized cross-dipole antenna featuring asymmetric slots as well as central ring structure enables multiband response and improved matching at the higher three frequency bands, whereas a loaded monopole wire antenna is used at the lower FM band. Four identical multiband antennas are placed in a 3D cubic arrangement that houses a 4-to-1 power combiner and matching circuits on the inside and the FM antenna on the top. In order to maintain stable rectenna output at varying input power levels and load resistances, a novel transmission line based matching network using closed form equations is proposed. Integrated in form of a 10 × 10 × 10 cm3 cube using standard FR4 substrate, the rectenna generates a peak output voltage of 2.38 V at −10 dBm input power. The RF to DC conversion efficiency is 70.28%, 41.7%, 33.37%, and 27.69% at 98 MHz, 0.9 GHz, 1.8 GHz, and 2.4 GHz, respectively, at −6 dBm. The rectenna also exhibits a measured conversion efficiency of 31.3% at −15 dBm for multitone inputs in ambient environment. The promising results in both indoor and outdoor settings are suitable to power low power IoT devices.

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Section: System Level Conceptmentioning

confidence: 99%

Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

Khalid

Saeed

Shoaib

et al. 2020

International Journal of Antennas and Propagation

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“…Max conversion efficiency [8] 65.2% [17] with dual patch 70% [17] with 6-patch array or 16-patch array 74% [18] 37.1% [19] 70% This work 75.5%…”

Section: Rectenna Structurementioning

confidence: 99%

“…In recent years, wireless power transmission (WPT) has become an intriguing solution for contactless powering of low power consuming electronic devices, such as wireless sensors and body area network devices [1]. WPT can be achieved by different approaches such as near-field inductive coupling [2], magnetic resonant coupling [3,4], and microwave power transmission (MPT) [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Comparing with the previous two power transferring approaches, MPT exhibits significant advantages on the ability of energy transfer direction controlling and much longer transmission range.…”

Section: Introductionmentioning

confidence: 99%

A Circular Polarized Rectenna with Out-of-Band Suppression for Microwave Power Transmission

Hong

Cao

Deng

et al. 2016

International Journal of Antennas and Propagation

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A novel circular polarized rectenna with out-of-band suppression is proposed in this paper. The circular polarization is realized by corner perturbation on a rectangular radiation patch and enhanced by a diagonal slim slot etched at the center of the patch. An open stub connecting to the quarter wavelength impedance transformer is used to suppress out-of-band wave through harmonics notching. The results of simulations and experiments agree very well, which show that the rectenna obtained −19 dB return loss at 2.4 GHz and −15.5 dB, −18.1 dB, and −11.4 dB suppression on second, third, and fourth harmonic frequency bands, respectively. The reflection coefficient in overall out-of-band, up to 10 GHz, is limited up to −3 dB. Integrated with a voltage doubling rectification circuit, the proposed rectenna can obtain 75.5% RF-to-DC conversion efficiency.

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“…The rectenna device which is easy in fabrication and onboard integration with other components is highly preferable [11]. In another work, a differential rectenna scheme has been proposed in [12,13] with improved efficiency at low signal level. However, the designed differential rectenna is linearly polarized and thus highly sensitive to the device or source movement.…”

Section: Introductionmentioning

confidence: 99%

Design of Differential Source Fed Circularly Polarized Rectenna With Embedded Slots for Harmonics Suppression

Kumar¹,

Chaudhary²

2018

PIER C

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This work presents an enhanced rectenna with a differential source feeding scheme for radio frequency (RF) energy harvesting at 2.45 GHz frequency. A circularly polarized (CP) microstrip antenna with embedded slots is designed which efficiently attains harmonics suppression. By modifying size and position of two diametrically opposite triangular projections in the top patch, two orthogonal modes that have equal magnitude and are in phase quadrature are excited. The four radial slots embedded in the antenna can block 2nd and 3rd harmonics which is suitable for onboard rectenna design without harmonics filter. A microstrip tapered feed line is used to match antenna element with 50-ohm impedance. The designed antenna is then tested for RF energy harvesting in two ways. One is conventional single source fed rectenna (SSFR), and the other is proposed differential source fed rectenna (DSFR). In the DSFR, the designed antennas are differentially operated by making a difference of λg/2 path length (λg Guided wavelength), and the ports are then connected to a differentially driven optimized rectifier circuit. For comparison, an SSFR and a DSFR are fabricated and tested. The circuit parameters in each case are optimized in Agilent Design System (ADS) 2011 software to maximize RF to direct current (DC) conversion efficiency. The proposed DSFR has a maximum efficiency (RF-DC) of 41.63% at 10 dBm RF input power. In the input power range from −20 dBm to 10 dBm, the DSFR has improved performance and higher efficiency over the SSFR.

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5.8-GHz stacked differential mode rectenna suitable for large-scale rectenna arrays

Cited by 8 publications

References 3 publications

Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

A Circular Polarized Rectenna with Out-of-Band Suppression for Microwave Power Transmission

Design of Differential Source Fed Circularly Polarized Rectenna With Embedded Slots for Harmonics Suppression

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