A New Low Radiation Wireless Transmission System in Mobile Phone Application Based on Magnetic Resonant Coupling

Author

Quan Chen ; Ho, S.L. ; Fu, W.N.

Author_Institution

Univ. of Hong Kong, Hong Kong, China

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

3476

Lastpage

3479

Abstract

A novel two-stage transmission system for short range data exchange between cell phone and headset is proposed. The signal transfer is realized by non-radiative magnetic resonant coupling at an extremely low radiation level, rendering it a safe technique for the human body. Compared with Bluetooth technology, the proposed method also avoids electromagnetic interference with other radio transmissions at 2.4 GHz band as it operates at a much lower frequency band in the MHz range. Numerical analysis and simulation are conducted to study the transfer characteristics of the system and to demonstrate the advantages in terms of efficiency and SAR level.

Keywords

cellular radio; electromagnetic interference; interference suppression; mobile handsets; numerical analysis; Bluetooth technology; SAR level; cell phone; electromagnetic interference avoidance; frequency 2.4 GHz; headset; human body; low radiation wireless transmission system; mobile phone application; nonradiative magnetic resonant coupling; numerical analysis; radio transmissions; safe technique; short range data exchange; signal transfer; two-stage transmission system; Bluetooth; Cellular phones; Coils; Couplings; Receivers; Resonant frequency; Wireless communication; Magnetic resonant coupling; specific absorption rate (SAR) level; wireless signal communication;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2243117

Filename

6559031