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Improved U-shaped stub rectangular slot antenna with tuning pad for UWB applications

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3 Author(s)
Chang, D.C. ; Dept. of Electr. Eng., Da Yeh Univ., Chang-Hua, Taiwan ; Liu, J.C. ; Liu, M.Y.

An improved design of the U-shaped stub rectangular slot antenna with a tuning pad for enhancing the impedance bandwidth is proposed. By properly tuning the physical size of the copper pad, a wide impedance bandwidth of the antenna can be achieved for UWB applications. For 10 dB return loss, a impedance bandwidth of the antenna is covered from 2.3 to 12 GHz (135.7%). A gain variation from 2 to 6.82 dBi is obtained.

Published in:

Electronics Letters  (Volume:41 ,  Issue: 20 )