Abstract
A triple band-notched ultrawide band (UWB) antenna is presented to avoid the interference of services working in the UWB band, such as WLAN, WiMAX and X-band satellite systems. The arc H-shaped slot on the radiating patch creates a low frequency notched band, while the other two band-notched bands are formed by cutting narrow slots on the ground plane. The presented antenna can operate on the ultrawide band efficiently and inhibit interference from three different kinds of narrow band communication systems. The simulation and measurement results show that the antenna has excellent band-notched function on the rejectband and almost omnidirectional radiation pattern on the passband.
Highlights
Ultra-wideband (UWB) systems have attracted widespread attention
Antenna had three notched bands, and rejected complete WiMAX band, complete WLAN band and the band for X-band satellite applications operating near 8 GHz
A planar UWB monopole antenna with triple band-notched function at 3.5/5.5/8 GHz is presented in this paper
Summary
Ultra-wideband (UWB) systems have attracted widespread attention. Compared with the traditional wireless system, the ultra-wideband system has some advantages such as strong anti-multipath effect ability, strong anti-interference ability, insensitivity to channel fading, low cost and low system complexity [1]. In [14], a UWB antenna was proposed in which two C-shaped slots were cut in the radiation patch to achieve dual band-notched function. In [17], by cutting an inverted G-shaped slot on the ground plane and elliptical slot on the modified circular patch, a 3.5/5.5 GHz dual band-notched UWB antenna was presented. In [21], by cutting four rectangular complementary split ring resonators (RCSRR) on the radiating patch and two rectangular open-loop resonators placed near the feedline, a smallest form factor UWB antenna with band-notched function at 3.5, 4.5, 5.25, 5.7 and 8.2 GHz was presented. A UWB antenna with a triple band-notched function is presented by cutting an arc H-shaped slot on the circular radiating patch and etching narrow slots on the ground plane. Specific details about the antenna design, as well as the results of the simulations and measurements, are described and discussed below
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