Near field effects of millimeter-wave power transmission for medical applications

Hargsoon Yoon; Kyo D. Song; Kunik Lee; Jaehwan Kim; Sang H. Choi

doi:10.1117/12.880526

15 April 2011 Near field effects of millimeter-wave power transmission for medical applications

Hargsoon Yoon, Kyo D. Song, Kunik Lee, Jaehwan Kim, Sang H. Choi

Proceedings Volume 7980, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2011; 798012 (2011) https://doi.org/10.1117/12.880526
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

An integration of micro devices system and wireless power transmission (WPT) technology offers a great potential to revolutionize current health care devices. The system integration of wireless power transmission devices with smart microsensors is crucial for replacing a power storage devices and miniaturizing wireless biomedical systems. Our research goal is to replace battery power supply with an implantable millimeter-wave rectenna. Recently, a hat system with a small millimeter-wave antenna which can feed millimeter-wave power to thin-film rectenna array embedding Schottky diodes was introduced for neural sensing and stimulation applications. In order to prove the design concept and investigate wireless power coupling efficiency under the system design, near-field wireless power transmission was studied in terms of wave frequency and distance. Also, in this paper, we will present the influence of biological objects to the wireless power transmission, simulating the experimental conditions of human objects for future medical applications.

Citation Download Citation

Hargsoon Yoon, Kyo D. Song, Kunik Lee, Jaehwan Kim, and Sang H. Choi "Near field effects of millimeter-wave power transmission for medical applications", Proc. SPIE 7980, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2011, 798012 (15 April 2011); https://doi.org/10.1117/12.880526

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KEYWORDS

Antennas

Near field

Wireless energy transfer

Skin

Distance measurement

Microwave radiation

Absorption

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