Loaded notched dual compact rectangular ultra-wideband applications monopole antenna

Keywords: CST UWB WLAN WiMAX ABSTRACT This work presents a rectangular of microstrip ultra wideband patch antenna for worldwide interoperability for microwave access (Wi-Max) and wireless local area network (WLAN) with a dual band-notched feature. Before developing a new wireless local area network (WLAN) system, it is necessary to gain a deeper understanding of wireless channels operating in the chosen environment's frequency operating bands. Because the 2.4 GHz industrial, scientific and medical (ISM) band is not licensed, the majority of WLAN devices experience interference from devices operating in the same frequency spectrum [l]-[3]. The existence of the system of narrow-band communications such as worldwide interoperability for microwave access (WiMAX) 3.30 GHz - 3.80 GHz, and HLAN 5.725 GHz - 5.85 GHz and WLAN 5.15 GHz - 5.35 GHz for standards IEEE 802.11a and X-band satellite communications (7.9 GHz - 8.4 GHz) represents the main concern for UWB antenna designers. The antenna is made of FR-4, which a relative dielectric constant of 4.3, a height of loss a tangent (tanS) 0.02; 1.6 mm. A patch and ground are constructed entirely of annealed copper with a thickness of t = 0.035 mm. The optimal values for the antenna parameter that we found through a parametric research are listed in Table 1.