Band-Notched Design for UWB Antennas

A method to form a notch band is presented. We etch complementary split-ring resonators in the T-stub region of a CPW-feed ultrawideband (UWB) antenna. Due to limited space in this region, we connect two resonators together so that they have a common slot edge. Compared with two separated CSSRs, this new design not only occupies less space but also yields high mismatch losses. It is found that high mismatch losses and deep suppression level can be obtained at the desired notch band.

[1]  K. Esselle,et al.  Prediction of the Notch Frequency of Slot Loaded Printed UWB Antennas , 2007, IEEE Transactions on Antennas and Propagation.

[2]  I. Gil,et al.  Microwave filters with improved stopband based on sub-wavelength resonators , 2005, IEEE Transactions on Microwave Theory and Techniques.

[3]  Yi-Cheng Lin,et al.  Compact Ultrawideband Rectangular Aperture Antenna and Band-Notched Designs , 2006, IEEE Transactions on Antennas and Propagation.