Ultra-wideband slot antenna with controllable notched bandwidth

作者：Li, Chun-Mao^*; Zhang, Bo

来源：Journal of South China University of Technology(Natural Science Edition), 2010, 38(12): 56-60.

DOI：10.3969/j.issn.1000-565X.2010.12.011

• L-shaped slits
• Notched bandwidths
• Notched characteristic
• Potential interferences
• Rejection band
• Ultra wide-band antennas
• Ultra wideband antennas (UWB)
• Wideband characteristics

As the notched bandwidth of the existing band-notched ultra-wideband (UWB) antennas are difficult to control, this paper presents a novel kind of UWB slot antenna with controllable notched bandwidth. In the investigation, first, a broadened rectangular solt antenna is used to generate ultra-wideband characteristics covering 3.1~10.6 GHz band. Then, a pair of inverted L-shaped slits is embedded in the ground to create a band-notched function. The notched bandwidth can be easily controlled by adjusting the width and location of the slits. Finally, an UWB antenna with rejection band at 5.0~6.0 GHz is successfully designed and fabricated, which effectively eliminates the potential interference from WLAN.

• 出版日期2010-12
• 单位华南理工大学