Author/Authors :
Bastani, Zahra Department of Engineering and Technology - Islamic Azad University, Shiraz, Fars Science and Research Branch, Iran , Honarvar, Mohamad Amin Department of Electrical Engineering - Islamic Azad University, Najafabad Branch, Iran , Jabari, Masoud Department of Electrical Engineering - Islamic Azad University, Marvdasht Branch, Iran
Abstract :
This paper introduces a novel ultra-wideband (UWB) microstrip antenna having wireless local area network band rejection characteristics. The proposed antenna is composed of a lip-shaped radiation patch being fed by a 50 Ω coplanar waveguide (CPW) feed line. The ground vertically continued to the two sides of the radiator. Thus, the substantial extra space adjacent to the radiator can be efficiently saved. The band rejection in the wireless local area networks (WLAN) (5.15-5.825GHz) is secured through etching the two symmetric C-shaped slots on ground plane to preclude interference between UWB and WLAN systems. The proposed antenna is of the size of 30×30×1.6𝑚𝑚3working within the range of 2.9 to 11.2 GHz with VSWR lower than 2 except in 5.15-5.825GHz band. Finally, the antenna is simulated and fabricated with nearly omnidirectional radiation patterns, stable gain and constant group delay in the operating band.
Keywords :
Ultra-wideband (UWB) , Coplanar waveguide (CPW) , Microstrip antenna , Wireless local area network (WLAN) , Voltage standing wave ratio (VSWR)
