Dual-band microstrip antenna fed by coaxial probe

In order to meet the requirement of wireless local area network applications and world interoperability for microwave access applications simultaneously, a dual-band microstrip antenna fed by 50Ω coaxial probe is designed by using the slot loading technique and the short-sheet loading technique. The performances of the antenna are simulated and the size of radiation patch is optimized accordingly. Based on the optimized size parameters, the antenna was fabricated and its performance was measured. Both simulated and measured results show the antenna is suitable for wireless applications.