Novel wireless impulsive power transmission to enhance the conversion efficiency for low input power

Chun Chih Lo, Yu Lin Yang, Chi Lin Tsai, Chieh Sen Lee, Chin-Lung Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

32 Citations (Scopus)

Abstract

This paper applies UWB technologies in a special aspect for the transmission of energy rather than messages to achieve a novel wireless impulsive powering approach and enhance the power conversion efficiency (PCE) for low average input power. The whole impulsive wireless power transmitting and receiving systems are implemented to validate the feasibility of the wireless power transmission (WPT) using impulsive waves and the improvement of the conversion efficiency of the rectifier circuitry. Experimental results prove that this technique is quite suitable for low input power transmission which is good for biomedical applications. In order to deliver the UWB power efficiently, a horn antenna with high directivity, large gain, and broad bandwidth acts as the transmit antenna. The impulsive power generated by the impulse generator is amplified by the UWB power amplifier and then delivered through the horn antenna. And the received impulsive power is converted by the voltage-doubler rectifier composed of Schottky diodes into a direct current (dc) power to supply the chips or rechargeable batteries. In this paper, the UWB impulsive wireless transmission systems have been proved to achieve 50% power conversion efficiency (PCE) even when the input power of the rectifier is lower than 0 dBm. Due to the fact that low transmission power has relatively little impacts and causes relatively slight injury to human bodies, it is one of the essential key technologies in biomedical implant chips and devices.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission
Subtitle of host publicationTechnologies, Systems, and Applications, IMWS-IWPT 2011 - Proceedings
Pages55-58
Number of pages4
DOIs
Publication statusPublished - 2011 Jul 14
Event2011 1st IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications, IMWS-IWPT 2011 - Kyoto, Japan
Duration: 2011 May 122011 May 13

Publication series

Name2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications, IMWS-IWPT 2011 - Proceedings

Other

Other2011 1st IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications, IMWS-IWPT 2011
CountryJapan
CityKyoto
Period11-05-1211-05-13

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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