Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting

David Lauder; Yichuang Sun

doi:10.1109/ECCTD49232.2020.9218310

Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper reviews recent developments in design of antennas and impedance matching networks for RF Energy Harvesting (RF-EH) at UHF. The antenna design is considered in conjunction with the requirements that it places on the impedance matching network (IMN), in order to match the load which is an RF to DC converter. It is shown that there may be advantages in using an interface impedance between the antenna and the IMN that differs from the conventional 50 Ωimpedance. Various options are considered for the design of an IMN driving a rectifier load. A novel adaptive IMN architecture is proposed that can match two different load impedances, depending on the received power level. This can optimize Power Conversion Efficiency (PCE) over a range of different input powers that may be encountered in RF EH.

Original language	English
Title of host publication	24th IEEE European Conference on Circuit Theory and Design, Sofia, Bulgaria, 7-10 September 2020
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
DOIs	https://doi.org/10.1109/ECCTD49232.2020.9218310
Publication status	Published - 7 Sept 2020

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10.1109/ECCTD49232.2020.9218310

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title = "Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting",

abstract = "This paper reviews recent developments in design of antennas and impedance matching networks for RF Energy Harvesting (RF-EH) at UHF. The antenna design is considered in conjunction with the requirements that it places on the impedance matching network (IMN), in order to match the load which is an RF to DC converter. It is shown that there may be advantages in using an interface impedance between the antenna and the IMN that differs from the conventional 50 Ωimpedance. Various options are considered for the design of an IMN driving a rectifier load. A novel adaptive IMN architecture is proposed that can match two different load impedances, depending on the received power level. This can optimize Power Conversion Efficiency (PCE) over a range of different input powers that may be encountered in RF EH.",

author = "David Lauder and Yichuang Sun",

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day = "7",

doi = "10.1109/ECCTD49232.2020.9218310",

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Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting. / Lauder, David; Sun, Yichuang.
24th IEEE European Conference on Circuit Theory and Design, Sofia, Bulgaria, 7-10 September 2020. Institute of Electrical and Electronics Engineers (IEEE), 2020.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting

AU - Lauder, David

AU - Sun, Yichuang

PY - 2020/9/7

Y1 - 2020/9/7

N2 - This paper reviews recent developments in design of antennas and impedance matching networks for RF Energy Harvesting (RF-EH) at UHF. The antenna design is considered in conjunction with the requirements that it places on the impedance matching network (IMN), in order to match the load which is an RF to DC converter. It is shown that there may be advantages in using an interface impedance between the antenna and the IMN that differs from the conventional 50 Ωimpedance. Various options are considered for the design of an IMN driving a rectifier load. A novel adaptive IMN architecture is proposed that can match two different load impedances, depending on the received power level. This can optimize Power Conversion Efficiency (PCE) over a range of different input powers that may be encountered in RF EH.

AB - This paper reviews recent developments in design of antennas and impedance matching networks for RF Energy Harvesting (RF-EH) at UHF. The antenna design is considered in conjunction with the requirements that it places on the impedance matching network (IMN), in order to match the load which is an RF to DC converter. It is shown that there may be advantages in using an interface impedance between the antenna and the IMN that differs from the conventional 50 Ωimpedance. Various options are considered for the design of an IMN driving a rectifier load. A novel adaptive IMN architecture is proposed that can match two different load impedances, depending on the received power level. This can optimize Power Conversion Efficiency (PCE) over a range of different input powers that may be encountered in RF EH.

U2 - 10.1109/ECCTD49232.2020.9218310

DO - 10.1109/ECCTD49232.2020.9218310

M3 - Conference contribution

BT - 24th IEEE European Conference on Circuit Theory and Design, Sofia, Bulgaria, 7-10 September 2020

PB - Institute of Electrical and Electronics Engineers (IEEE)

ER -

Design Considerations of Antennas and Adaptive Impedance Matching Networks for RF Energy Harvesting

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