Super-Wideband Printed Asymmetrical Dipole Antenna

This is the authors' abstract. We don't add key points for this paper.

The proposed dipole antenna consists of two printed strips with unequal lengths and is fed by a coplanar strip (CPS) line. As the antenna parameters and port impedance are properly selected, a super wide operating band (jS11j < i10dB) of 3.5 to 20.0GHz is realized. Antenna samples were fabricated using standard PCB process. The area of the constructed dipole antenna is 40:0£5:0mm 2 . The S-parameter measurement was performed via a transition (CPS to double-sided parallel strip line) and transformer (190 to 50Ohm). The measured fractional bandwidth achieved 139.3% (from 3.4 to 19.0GHz) as predicted, over which the antenna peak gain is better than 0dBi.