low SAR design of folder type ...

A low SAR design of folder type handset with dual antennasA LOW SAR DESIGN OF FOLDER TYPE HANDSET WITH DUAL

ANTENNAS
J. D. Park', B. C. Kim, H. D. Choi
Electronics and Telecommunications Research Institute Advanced Radio Technology Dcpartmcni

Korea

I.INTRODUCTION

With fhc rapid development of mobile phone. Lhcrc has bccn a growins demand for reduction o f effects
IO

thc human body from antenna exposure. Recently, planar rype anlennas arc
to

intcnded to "ply

the mobile phone in order

I D reduce

SAR (Specific Absorption Ratel [I],

[2]. In this study. r folder type mobile phone that has dual antennas was designed to reduce

SAR on thc human hcvd. One o f f h e antennas i s PlFA (Pianar lnverled F Antenna) that is
inrcrtcd i n

thc foldcr case, the other is typical monopole antenna. In older

to

achieve Optimal

performance from these unle