Monopole Patch Antenna with Dual Band of 2.4 and 5 GHz Designed for Wireless LAN Applications

Abstract

A compact prototype of dual band monopole antenna has been fabricated on PCB with small overall size of 36.6 mm×47 mm. By the trial of simulation to tune the dimensions of PCB, an optimum design of antenna can be obtained. Dual resonances excited in 2.4 and 5 GHz bands. For return loss more than 9.6 dB, the achieved bandwidths are 2.41 to 2.77 GHz in 2.4 GHz band and 5.11 to 5.83 GHz in 5 GHz band. The return loss ( ) can keep larger than 9.6dB within the bands of 2.4 and 5 GHz.