Patent ID: 7612628
Filing Date: 2009-11-03
Classification: G01R,H01P

Abstract:
1. A sampling circuit, comprising; a substrate; a first sampling diode and a second sampling diode defined on the substrate and in electrical communication with a signal input; a strobe waveguide, defined on the substrate, that includes a first conductor and a second conductor configured to deliver corresponding strobe pulses of opposite polarity to the first sampling diode and the second sampling diode; an intermediate frequency (IF) waveguide, defined on the substrate, and that includes a first conductor and a second conductor that are in electrical communication with the first sampling diode and the second sampling diode, respectively, and configured so that signal samples delivered to the first and second conductors by the first sampling diode and the second sampling diode are of the same polarity and strobe portions delivered to the first conductor and second conductor are of opposing polarity; varactors configured with the strobe waveguide to form a nonlinear transmission line (NLTL); and respective diodes that electrically connect the first conductor of the IF waveguide and the second conductor of the IF waveguide to the first conductor of the strobe waveguide and the second conductor of the strobe waveguide, respectively.