Planar Multiband Antenna for Compact Mobile Transceivers

A compact planar antenna for portable multistandard transceivers is presented. The proposed microstrip-fed antenna includes a symmetrical double G-shaped radiator and slotted ground plane. A return loss of better than 10 dB is achieved at the frequency bands PCS (1850-1990 MHz), WLAN+ Bluetooth (2400-2480 MHz), WiMAX (2500-2690 MHz), WiMAX (3400-3600 MHz), HIPERLAN2 (5150-5350/5470-5725 MHz), and IEEE 802.11a (5150-5350-5725-5825 MHz). Moreover, the return loss is more than 6 dB across the DCS band (1.71-1.88 GHz). The proposed antenna is printed on a single-layered FR4 substrate, and it occupies a small volume of 40 × 30 × 1.6 mm³. The simulated and measured performance of the antenna confirms its multiband operation and omnidirectional radiation pattern.