Abstract
This paper presents a complex conjugate impedance matching technique taking account of the electric properties of biological tissues during power transfer. Output impedance of a wireless power transfer (WPT) system depends on the electrical property of tissues where the system is being used. So, impedance mismatch between Rx and rectifier occurs when the system optimized for air is used in biological tissues. First, the system is matched in the air and later, impedance mismatch is estimated when the same system is being used in chicken which is later compensated. The proposed matching technique will bring back the rf-dc power conversion efficiency (PCE) very close to that of the system being used in the air. Experiment was carried out in three different cases where PCE is 49.53% in the air, 30% in chicken with the conventional conjugate matching and 45.5% in the chicken using the proposed matching technique.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1419-1422 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781728113098 |
| Publication status | Published - Jun 1 2019 |
| Event | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States Duration: Jun 2 2019 → Jun 7 2019 |
Publication series
| Name | IEEE MTT-S International Microwave Symposium Digest |
|---|---|
| Volume | 2019-June |
| ISSN (Print) | 0149-645X |
Conference
| Conference | 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 |
|---|---|
| Country | United States |
| City | Boston |
| Period | 6/2/19 → 6/7/19 |
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All Science Journal Classification (ASJC) codes
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
45% RF-to-DC Conversion Efficiency Wireless Power Transfer System Through Biological Tissues Using Complex Conjugate Impedance Matching Taking Account of Tissue's Properties. / Chalise, Sumin; Nakao, Mitsuki; Tahar, Fairus; Barakat, Adel; Yoshitomi, Kuniaki; Pokharel, Ramesh.
2019 IEEE MTT-S International Microwave Symposium, IMS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 1419-1422 8700821 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - 45% RF-to-DC Conversion Efficiency Wireless Power Transfer System Through Biological Tissues Using Complex Conjugate Impedance Matching Taking Account of Tissue's Properties
AU - Chalise, Sumin
AU - Nakao, Mitsuki
AU - Tahar, Fairus
AU - Barakat, Adel
AU - Yoshitomi, Kuniaki
AU - Pokharel, Ramesh
PY - 2019/6/1
Y1 - 2019/6/1
N2 - This paper presents a complex conjugate impedance matching technique taking account of the electric properties of biological tissues during power transfer. Output impedance of a wireless power transfer (WPT) system depends on the electrical property of tissues where the system is being used. So, impedance mismatch between Rx and rectifier occurs when the system optimized for air is used in biological tissues. First, the system is matched in the air and later, impedance mismatch is estimated when the same system is being used in chicken which is later compensated. The proposed matching technique will bring back the rf-dc power conversion efficiency (PCE) very close to that of the system being used in the air. Experiment was carried out in three different cases where PCE is 49.53% in the air, 30% in chicken with the conventional conjugate matching and 45.5% in the chicken using the proposed matching technique.
AB - This paper presents a complex conjugate impedance matching technique taking account of the electric properties of biological tissues during power transfer. Output impedance of a wireless power transfer (WPT) system depends on the electrical property of tissues where the system is being used. So, impedance mismatch between Rx and rectifier occurs when the system optimized for air is used in biological tissues. First, the system is matched in the air and later, impedance mismatch is estimated when the same system is being used in chicken which is later compensated. The proposed matching technique will bring back the rf-dc power conversion efficiency (PCE) very close to that of the system being used in the air. Experiment was carried out in three different cases where PCE is 49.53% in the air, 30% in chicken with the conventional conjugate matching and 45.5% in the chicken using the proposed matching technique.
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M3 - Conference contribution
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1419
EP - 1422
BT - 2019 IEEE MTT-S International Microwave Symposium, IMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
ER -