Ultra Wideband Printed Monopole with Truncated Stub For Dual Notch Performance [ ]

The printed monopole with T-shaped slot yields Ultra Wideband response from 3 GHz to over 12 GHz. Placing a stub in the T-slot gives rise to a notch band or rejection band, which is tunable by varying the position and dimensions of the stub. By further truncating the stub, a dual notch band is achieved. The center frequency of second notch band is tuned from 3.3 GHz to 5.2 GHz by increasing the truncation gap.