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J Electromagn Eng Sci > Volume 13(1); 2013 > Article
Journal of Electromagnetic Engineering and Science 2013;13(1):34-37.
DOI: https://doi.org/10.5515/JKIEES.2013.13.1.34   
Band-Notched Ultra-Wideband Antenna with Asymmetric Coupled-Line for WLAN and X-Band Military Satellite
Jun-Hyuk Lee, Young-Je Sung
Dept. of Electronic Engineering, Kyonggi University
This paper presents a novel ultra-wideband (UWB) antenna that rejects narrow and broad bands and is suitable for wireless communications. The base of the proposed antenna has a circular patch that can cover the UWB frequency range (3.1~10.6 GHz). The interference issues caused by co-existence within the UWB operation frequency are overcome by a design that uses a parallel-coupled asymmetric dual-line with a circular monopole antenna. The proposed antenna showed a stable radiation pattern, realized gain and reflection coefficient lower than -10 dB across the UWB operation bandwidth except for 5.15~5.85 GHz and 7.25~8.4 GHz. The fabrication, simulation, and measurement results obtained for the proposed antenna were in good agreement with the expected values.
Key words: Parallel Coupled Line, Notch-Bands, Patch Antenna, Ultra-Wideband (UWB)
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