A Novel Hexa-Band Antenna for Mobile Handsets Application

Abstract

A novel hexa-band antenna for mobile handsets application is proposed and analyzed in this communication. An asymmetric T-type monopole antenna with a shorted-line is designed to be operated in code-division multiple access (CDMA, 824-894 MHz), global system for mobile communications (GSM, 880-960 MHz), digital communication system (DCS, 1710-1880 MHz), personal communication system (PCS, 1850-1990 MHz), wideband code division multiple access (WCDMA, 1920-2170 MHz) and Bluetooth (2400-2484 MHz) bands. A prototype of the proposed antenna with 50 mm in length, 3 mm in height and 15 mm in width is fabricated and experimentally investigated. The experimental results indicate that the VSWR 2.5:1 bandwidths achieved were 17.8% and 37.1% at 900 MHz and 2100 MHz, respectively. The specific absorption rate (SAR) for an input power of 24 dBm in CDMA, GSM and WCDMA bands, and an input power of 21 dBm in DCS and PCS bands all meet the SAR limit of 1.6 mW/g. Experimental results are shown to verify the validity of theoretical work.