Dual-Band Resistance Compression Networks for Improved Rectifier Performance

Niotaki, Kyriaki; Georgiadis, Apostolos; Collado, Ana; Vardakas, John S.

doi:10.1109/tmtt.2014.2364830

Cited by 149 publications

(59 citation statements)

References 24 publications

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“…connected in series with some reactive elements that introduce opposite phase response in the two branches at the desired operation frequency. More recently, in [15] a dual band RCN based rectifier circuit has been proposed where the reactive element networks consist of dual band bandpass filters sections. These dual band bandpass sections are formed by a series and a shunt LC section.…”

Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

“…These dual band bandpass sections are formed by a series and a shunt LC section. The opposite phase response in the two branches is obtained by using the same network but reversing the node where it is connected to the varying load [14,15]. The schematic representation of the dual band RCN based rectifier in [15] is shown in Fig.…”

Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

“…The opposite phase response in the two branches is obtained by using the same network but reversing the node where it is connected to the varying load [14,15]. The schematic representation of the dual band RCN based rectifier in [15] is shown in Fig. 5 and its RF-DC conversion efficiency is compared to the efficiency of a conventional dual band rectifier in Fig.…”

Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

“…Other works combine the use of a JFET transistor and a Schottky diode to synthesize a rectifier that can operate for both large and small input powers levels [13]. Some other works propose the use of resistance compression networks (RCN) in order to minimize the variations in power and load that reach the rectifying element [14,15].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Rectifier Design Challenges for RF Wireless Power Transfer and Energy Harvesting Systems

Collado¹,

Daskalakis²,

Niotaki³

et al. 2017

RADIOENGINEERING

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Abstract. The design of wireless power transfer (WPT) and energy harvesting (EH) solutions poses different challenges towards achieving maximum RF-DC conversion efficiency in these systems. This paper covers several selected challenges when developing WPT and electromagnetic EH solutions, such as the design of multiband and broadband rectifiers, the minimization of the effect that load and input power variations may have on the system performance and finally the most optimum power combining mechanisms that can be used when dealing with multielement rectifiers.

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Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

Section: Load/input Power Variations In Rectifier Circuitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rectifier Design Challenges for RF Wireless Power Transfer and Energy Harvesting Systems

Collado¹,

Daskalakis²,

Niotaki³

et al. 2017

RADIOENGINEERING

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“…Nowadays, Wireless Power Transfer (WPT) and energy scavenging have been attracting researchers and industry due to the ever-growing need for flexible, sustainable, and unfailing sources of energy. In addition, with recent advances in wireless sensor networks (WSN), e.g., the Internet of Things (IoT), such intelligent systems are further highlighting this necessity [1,2]. The aim of wireless power transfer is to allow devices to operate for an extended period of time without having to charge/replace their batteries, a critical issue because of the inherent costs and difficulties of reaching inaccessible areas.…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Power Harvester with Active Load Modulation for Highly Efficient Short/Long Range RF WPT Applications

et al. 2018

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After demonstrating, in previous works, the proof of concept of adaptive rectifiers with active load modulation to operate simultaneously for short/long range RF Wireless Power Transfer (WPT) while maintaining a high Power Conversion Efficiency (PCE), the authors introduced in this paper a power link budget of the proposed adaptive rectifier with a compromise between distance and efficiency. Then, to further exhibit its capabilities and enhance its performance, this paper first introduced a discussion about the parameters preventing the rectifier from operating over a wide range of input powers was performed. Furthermore, active load modulation was implemented and its co-simulation results presented. Finally, an adaptive rectifier was fabricated and its results successfully compared to measured data. It exhibits 40% of PCE over a wide dynamic input range of incident RF power levels from −6 to 25 dBm at the 900 MHz in the Industrial Scientific Medical band (ISM band), with a maximum PCE of 66% for an input power of 15 dBm. The proposed devices are therefore suitable for WPT applications to harvest energy from a controlled source.

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