%0 Journal Article
%T Active UWB Printed Antenna with Tunable and Switchable Band-Notched Functions
%A Feng Xu
%A Ling Tang
%A Xu Chen
%A Xin-An Wang
%J PIER     Letters
%D 2012
%I EMW Publishing
%R 10.2528/PIERL11121401
%X A printed ultra-wideband (UWB) monopole antenna with both tunable and switchable band-notched characteristics is proposed. An embedded resonant slot loaded with a varactor and a pin diode controlled by DC signal through one common bias network is employed to tune and switch the notch band. In the ``all-pass'' state when the two diodes are partially turned on, the power consumption of this active antenna is only 2.4 ¦ÌW. Measured return loss, radiation pattern, gain and group delay of the introduced antenna are presented in this paper.
%U http://www.jpier.org/pierl/pier.php?paper=11121401