Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2015.10.1.338
Title & Authors
Compact Band-notched UWB Antenna Design Based On Transmission Line Model Zhu, Xiaoming; Yang, Xiaodong; Chen, Peng;
In order to avoid the interference from existing narrowband communication systems, this paper proposes a compact band-notched UWB (ultra wideband) antenna with size of . Transmission line model is applied to analyzing wide impedance matching characteristic of the modified base antenna, which has a gradual stepped impedance feeder structure. The proposed antenna realizes dual band-notched function by combining two biased T-shaped parasitic elements on the rear side with a window aperture on the radiation patch. The simulation current distributions of the antenna reflect resonant suppression validity of the two methods. In addition, the measured radiation characteristics demonstrate the proposed antenna prevents signal interference from WLAN (5.15-5.825GHz) and WiMAX (3.4-3.69GHz) effectively, and the measured patterns show the antenna omnidirectional radiation in working frequencies.
UWB antenna;Notched band;Transmission line model;Gradual stepped impedance matching;Parasitic element;Window aperture;
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