Naslov
Increasing the Radiation Efficiency and Resistance of Electrically Small Spherical Helical Antenna for Wireless Power Transfer

Autori
Škiljo, Maja ; Blažević, Zoran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of SoftCOM 2013 / Rožić, Nikola ; Begušić, Dinko - Split, 2013, 1-5

ISBN
978-953-290-041-5

Skup
2013 International Conference on Software, Telecommunications and Computer Networks

Mjesto i datum
Primošten, Hrvatska; Split, Hrvatska, 18.09.2013. - 20.09.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
spherical helical antenna; wireless power transfer; inductive feed; multiple-folding

Sažetak
The performance of wireless power transfer system depends highly on antenna radiation efficiency, according to the theory. Practical problem of power transfer between electrically small antennas is their impedance match to standard transmission lines. This paper shows how the maximum power transfer efficiency can be reached with new design approach at 10 MHz. Various helical antenna designs are investigated and compared. A combination of two methods is proposed for increasing the radiation efficiency and the input resistance of spherical helical antenna. The results show that it is possible to achieve significantly higher power transfer efficiency at 10 MHz than in the reported literature. The wireless power transfer system consisted of two four-arm spherical helical antennas with kresa = 0.064, can achieve maximum power transfer efficiency of 95 percent at 2 m.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA