Degradation factors of short-distance wireless power transmission and allowable variation of receiving circuit parameters

Author

Iigusa, Kyoichi ; Harada, Hiroshi

Author_Institution

Smart Wireless Lab., NICT, Yokosuka, Japan

fYear

2014

fDate

6-11 April 2014

Firstpage

1992

Lastpage

1996

Abstract

Wireless transmission efficiency is deteriorated by radiation and ohmic loss even when the receiving circuit is optimally controlled and the transmitting circuit is controlled to match the input impedance of the transmitting antenna. The dependences of these degradation factors on transmission distance, antenna type, size, and arrangement are investigated. Because variation of the receiving circuit parameters deteriorates transmission efficiency, the variation width allowing receiving efficiency degradation (in which degradation by impedance mismatch of a transmitting antenna is excepted) of 10% is also evaluated.

Keywords

impedance matching; power transmission; transmitting antennas; antenna arrangement; antenna size; antenna type; degradation factors; impedance mismatch; ohmic loss; receiving circuit parameters; short-distance wireless power transmission; transmission distance; transmission efficiency; transmitting antenna; transmitting circuit; variation width; Dipole antennas; Impedance; Propagation losses; Receiving antennas; Transmitting antennas; Wireless communication; dipole; efficiency; loop; loss; radiation; receipt; transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2014 8th European Conference on

Conference_Location

The Hague

Type

conf

DOI

10.1109/EuCAP.2014.6902195

Filename

6902195