Summary
International Symposium on Antennas and Propagation
2012
Session Number:1A4
Session:
Number:1A4-1
On Near-Field Radiation Characteristics of the Internal Handset Antenna with a Curved Metal Pattern
Hsuan-Jui Chang,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
Near-field radiation characteristics of an internal cellular handset antenna with a curved metal pattern are studied. The antenna's metal pattern comprises a simple strip monopole for the GSM1800/1900 operation. The strip monopole is smoothly curved to avoid right-angle or abrupt bendings such that smooth variations of the excited surface currents thereon can be obtained. In this case, it is expected that the antenna's near-field radiation can be decreased. When compared to a corresponding monopole antenna with one or more right-angle bendings, the obtained results show that the proposed antenna can has lower SAR (specific absorption rate) values by at least 1.0 dB, which is mainly owing to the decreased near-field radiation. Detailed results are presented and discussed.