Design of Printed Multi-band Double Dipole Antenna for Wireless Communication Applications

This paper intends to propose a printed multi-band monopole antenna for wireless local area network(WLAN). The proposed antenna is consisted of the two difference size alternated branches by modified monopole and alternated strips and tapered matching with modified ground plane. The proposed antenna has a low profile and can easily be fed by microstrip line. Prototypes of the proposed antenna designed for WLAN operations in 2.4, 5 GHz bands have been designed and tested. The proposed antenna was obtained good radiation characteristics. The simulated bandwidth for VSWR≤ 2 is 0.98 GHz (2.1~3.08), 1.74 GHz 93.98 ~ 5.72) 1.18 GHz (6.6 ~7.78). The simulation peak gain is 2.8 dBi at 5.45 GHz.