Novel Ultra-Wideband Monopole Antenna with Dual Band-Notched Function
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A novel UWB monopole antenna with dual band-notched property was proposed in this paper.There are some other systems working in the frequency band of UWB systems.The interference between these systems is an urgent problem to address,and notching is a simple but effective way to solve it.This design was based on circular patch monopole antenna and fed by micro-strip line.Printing radiation units on both sides of the fed micro-strip line and inserting a U-shaped slot in the ground plane can notch the frequency bands of WLAN and WiMax respectively,so as to inhibit the interference between UWB system and some other systems.A prototype of the presented antenna has been fabricated and experimentally studied.Both the simulation and measurement results have demonstrated that such antenna owns excellent band-notched characteristics in the UWB band and is suitable for practical UWB systems.