IEICE TRANSACTIONS on Electronics
Efficiency-Enhancement of 2.45-GHz Energy Harvesting Circuit Using Integrated CPW-MS Structure at Low RF Input Power
Summary :
This paper looks into the underlying RF energy harvesting issues at low input ambient power levels below 0 dBm where efficiency degradation is severe. The proposed design aims to improve the rectenna sensitivity, efficiency, and output DC power. In the same manner, we are using a straightforward and compact size rectenna design. The receiving antenna is a coplanar waveguide (CPW) slot monopole antenna with harmonic suppression property and a peak measured gain of 3 dBi. Also, an improved antenna radiation characteristics, e.g radiation pattern and gain covering the desired operating band (ISM 2.45 GHz), is observed. The rectifier is a voltage doubler circuit based on microstrip (MS) structure. Two architectures of rectenna were carefully designed, fabricated and tested. The first layout; antenna, and rectifier were fabricated separately and then connected using a connector. The peak efficiency (40% at -5 dBm) achieved is lower than expected. To improve the efficiency, a high compactness and simple integration between antenna and rectifier are achieved by using a smooth CPW-MS transition. This design shows improved conversion efficiency measurement results which typically agree with the simulation results. The measured peak conversion efficiency is 72% at RF power level of -7 dBm and a load resistance of 2 kΩ.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E102-C No.5 pp.399-407
- Publication Date
- 2019/05/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.2018ECP5065
- Type of Manuscript
- PAPER
- Category
- Electronic Circuits
Authors
Mohamed M. MANSOUR
Electronics Research Institute, Microelectronics Department,Kyushu University
Haruichi KANAYA
Kyushu University
Keyword
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Mohamed M. MANSOUR, Haruichi KANAYA, "Efficiency-Enhancement of 2.45-GHz Energy Harvesting Circuit Using Integrated CPW-MS Structure at Low RF Input Power" in IEICE TRANSACTIONS on Electronics,
vol. E102-C, no. 5, pp. 399-407, May 2019, doi: 10.1587/transele.2018ECP5065.
Abstract: This paper looks into the underlying RF energy harvesting issues at low input ambient power levels below 0 dBm where efficiency degradation is severe. The proposed design aims to improve the rectenna sensitivity, efficiency, and output DC power. In the same manner, we are using a straightforward and compact size rectenna design. The receiving antenna is a coplanar waveguide (CPW) slot monopole antenna with harmonic suppression property and a peak measured gain of 3 dBi. Also, an improved antenna radiation characteristics, e.g radiation pattern and gain covering the desired operating band (ISM 2.45 GHz), is observed. The rectifier is a voltage doubler circuit based on microstrip (MS) structure. Two architectures of rectenna were carefully designed, fabricated and tested. The first layout; antenna, and rectifier were fabricated separately and then connected using a connector. The peak efficiency (40% at -5 dBm) achieved is lower than expected. To improve the efficiency, a high compactness and simple integration between antenna and rectifier are achieved by using a smooth CPW-MS transition. This design shows improved conversion efficiency measurement results which typically agree with the simulation results. The measured peak conversion efficiency is 72% at RF power level of -7 dBm and a load resistance of 2 kΩ.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2018ECP5065/_p
Copy
@ARTICLE{e102-c_5_399,
author={Mohamed M. MANSOUR, Haruichi KANAYA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Efficiency-Enhancement of 2.45-GHz Energy Harvesting Circuit Using Integrated CPW-MS Structure at Low RF Input Power},
year={2019},
volume={E102-C},
number={5},
pages={399-407},
abstract={This paper looks into the underlying RF energy harvesting issues at low input ambient power levels below 0 dBm where efficiency degradation is severe. The proposed design aims to improve the rectenna sensitivity, efficiency, and output DC power. In the same manner, we are using a straightforward and compact size rectenna design. The receiving antenna is a coplanar waveguide (CPW) slot monopole antenna with harmonic suppression property and a peak measured gain of 3 dBi. Also, an improved antenna radiation characteristics, e.g radiation pattern and gain covering the desired operating band (ISM 2.45 GHz), is observed. The rectifier is a voltage doubler circuit based on microstrip (MS) structure. Two architectures of rectenna were carefully designed, fabricated and tested. The first layout; antenna, and rectifier were fabricated separately and then connected using a connector. The peak efficiency (40% at -5 dBm) achieved is lower than expected. To improve the efficiency, a high compactness and simple integration between antenna and rectifier are achieved by using a smooth CPW-MS transition. This design shows improved conversion efficiency measurement results which typically agree with the simulation results. The measured peak conversion efficiency is 72% at RF power level of -7 dBm and a load resistance of 2 kΩ.},
keywords={},
doi={10.1587/transele.2018ECP5065},
ISSN={1745-1353},
month={May},}
Copy
TY - JOUR
TI - Efficiency-Enhancement of 2.45-GHz Energy Harvesting Circuit Using Integrated CPW-MS Structure at Low RF Input Power
T2 - IEICE TRANSACTIONS on Electronics
SP - 399
EP - 407
AU - Mohamed M. MANSOUR
AU - Haruichi KANAYA
PY - 2019
DO - 10.1587/transele.2018ECP5065
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E102-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 2019
AB - This paper looks into the underlying RF energy harvesting issues at low input ambient power levels below 0 dBm where efficiency degradation is severe. The proposed design aims to improve the rectenna sensitivity, efficiency, and output DC power. In the same manner, we are using a straightforward and compact size rectenna design. The receiving antenna is a coplanar waveguide (CPW) slot monopole antenna with harmonic suppression property and a peak measured gain of 3 dBi. Also, an improved antenna radiation characteristics, e.g radiation pattern and gain covering the desired operating band (ISM 2.45 GHz), is observed. The rectifier is a voltage doubler circuit based on microstrip (MS) structure. Two architectures of rectenna were carefully designed, fabricated and tested. The first layout; antenna, and rectifier were fabricated separately and then connected using a connector. The peak efficiency (40% at -5 dBm) achieved is lower than expected. To improve the efficiency, a high compactness and simple integration between antenna and rectifier are achieved by using a smooth CPW-MS transition. This design shows improved conversion efficiency measurement results which typically agree with the simulation results. The measured peak conversion efficiency is 72% at RF power level of -7 dBm and a load resistance of 2 kΩ.
ER -
English
