In this paper a new technique is proposed to improve the directivity and directivity bandwidth of couplers. In this approach, a low pass filter has been inserted before isolation port. It is shown that this technique can improve coupling...

In this paper, a highly-linear CMOS transconductor for use in tracking low-pass Gm-C filters employed

III digital TV tuners IS proposed. In order to improve the linearity of the proposed transconductor at the wide ...