Hybrid Power Combining Rectenna Array for Wide Incident Angle Coverage in RF Energy Transfer

Lee, Dong Hoon; Lee, Soo-Ji; Hwang, In‐June; Lee, Wang‐Sang; Yu, Jong‐Won

doi:10.1109/tmtt.2017.2678498

Cited by 80 publications

(39 citation statements)

References 23 publications

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“…Prior to it, complete illustration about the microwave antennas in RF energy harvesting are presented with complete design perspective. A comparative study along with performatory analysis of microwave antennas are presented in Table ; keeping intact with rectenna characteristics: operating frequency, realized gain, polarization diversity, input power levels, and RF‐to‐DC power conversion efficiency, which was not in the scope of review papers for RF energy harvesting available in the open literature. Technically, to pursue clear understanding about tradeoffs of modern RF systems; five different cases of planar antennas (monopole antennas) at different bands with reflector surfaces and integrated with rectifier circuits are designed, simulated and analyzed by using FDTD domain solver (CST microwave studio) and circuit solver (advanced design system).…”

Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

“…The relevant theories of basic forms of antennas are available in open literature . It is further classified into high performance antennas, metamaterial antennas, CP antennas, reconfigurable antennas, and array antennas . It is a strong belief that prerequisites need to be cleared before using the implicit technique in proposed antenna models.…”

Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

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Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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With the significant rise of low power embedded devices in various applications of both consumer and commercial usage, the surge for continuous power requirements has initiated promising research toward alternative sources of energy. It includes the domain of wireless power transmission, internet‐of‐things, wireless sensor nodes, machine‐to‐machine, and radio frequency identification. Thus, the overall scope of this review article is to witness microwave antennas and its implementation in RF energy harvesting system through ambient RF signals. For this reason, unified understanding of classical electromagnetism is needed; beginning with the fundamentals of RF transmission and the exploration of concepts such as Fraunhofer's Distance and Friis Transmission Equation. It is followed up by the analogy of dependency of parameters like circuit build‐up, conversion efficiencies and amount of power harvested, which is quite crucial from the rectifier point‐of‐view. For better improvisement in RF energy harvesting systems, five different cases of monopole antennas are explored with reflector surfaces such as PEC (perfect electrical conductor) and AMC (artificial magnetic conductor) integrated with the rectifier circuit. Implementation with wide diversity has proposed a generalized solution for achieving tradeoffs: polarization and pattern diversity with consistent system efficiency; leads to clean and sustainable energy for low power‐embedded devices.

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Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

Section: Microwave Antennas In Rf Energy Harvesting Systemsmentioning

confidence: 99%

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Behera

Meher

Mishra

2020

Int J RF Microw Comput Aided Eng

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“…The direction of the main‐beam is dependent on the input port of excitation of the butler matrix. The block diagram of a beam‐switching wireless power transfer system based on a combination of a linear antenna array and a butler matrix is shown in Figure . A number of wireless sensor nodes capable of energy harvesting are in different positions as shown in Figure .…”

Section: Introductionmentioning

confidence: 99%

Compact circularly polarized beam-switching wireless power transfer system for ambient energy harvesting applications

Chandrasekaran

Nasimuddin

Alphones

et al. 2019

Int J RF Microw Comput Aided Eng

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In this work, we propose a circularly polarized (CP) beam-switching wireless power transfer system for ambient energy harvesting applications operating at 2.4 GHz. Beam-switching is achieved using a low profile, electrically small CP antenna array with four elements and a novel miniaturized 4×4 butler matrix. The CP antenna is designed with an e-shaped slot and four antennas. The CP antenna measures 0.32λ 0 ×0.32λ 0 ×0.006λ 0 at 2.4 GHz. The antenna has a gain of 3 dBic and an axial ratio less than 3-dB at 2.4 GHz. A linear antenna array consisting of four elements is designed with the CP antenna element with an inter-element distance of 0.29λ 0 . A 4×4 butler matrix with miniaturized couplers and crossovers are used to feed the four antenna array elements. Based on the input port of excitation, the main beam of the antenna array is demonstrated to be switched to four directions: −5 , 65 , −55 , and 20 . A CP rectenna is used to demonstrate the wireless power transfer capability of the combination of the butler matrix and the CPantenna array. The rectenna consists of a Teo-shaped CP antenna and a rectifier. The open circuit voltage at the output of the rectenna is found to peak value of 30 mV at −3 , 61 , −53 , and 17 . Thus a complete system for CP wireless power transfer including the power transmission system as well as the RF energy harvesting sensor is designed and experimentally verified. K E Y W O R D Sbutler matrix, circular polarized rectenna, RF energy harvesting system, wireless power transfer

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“…A wide-angle rectenna with a triple-feed network has been introduced to provide wide-angle reception capabilities in both Eand H-planes [7]. A wide-angle rectenna that uses a hybrid power combining technique has been reported [8]. Linearly polarized antennas were used in these rectennas [4][5][6][7][8], and strict antenna alignment between the transmitter and receiver is required to obtain a higher output DC power at the load.…”

Section: Introductionmentioning

confidence: 99%

A Circularly Polarized Dual-Axis Wide-Angle Rectenna Employing a Dual-Feed Array Antenna With Inclined Patches

Phyoe¹,

Nishiyama²,

Toyoda³

2019

PIER M

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In this paper, a novel circularly polarized rectenna using a dual-feed array antenna with inclined patches is proposed to provide a dual-axis wide-angle reception capability. A new conical and pencil dual-beam circularly polarized array antenna integrating planar magic-Ts is designed and fabricated to overcome the polarization and main-beam misalignment between the transmitting and receiving antennas. To improve the rectenna's output power, open stub matching networks are used to achieve the matching between the antenna and rectifying diodes. Two types of circularly polarized dual-axis rectennas which respectively allow the parallel and series connections of two diodes are experimentally evaluated and compared to confirm the wide-angle reception capabilities in the x-z and y-z planes.

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Hybrid Power Combining Rectenna Array for Wide Incident Angle Coverage in RF Energy Transfer

Cited by 80 publications

References 23 publications

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Microwave antennas—An intrinsic part of RF energy harvesting systems: A contingent study about its design methodologies and state‐of‐art technologies in current scenario

Compact circularly polarized beam-switching wireless power transfer system for ambient energy harvesting applications

A Circularly Polarized Dual-Axis Wide-Angle Rectenna Employing a Dual-Feed Array Antenna With Inclined Patches

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