Gallium arsenide monolithically integrated sampling head using e

Details Gallium arsenide monolithically integrated sampling head using e Gallium arsenide monolithically integrated sampling head using e

1991-04-16

1995-01-03

Callaham, Timothy P.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307353, 307263, 328151, 330 20, H03K 1760, H03K 1700

Patent

active

053789393

ABSTRACT:
A high bandwidth RF sampler using equivalent time sampling comprising an RF coplanar waveguide integrated with sampling diodes on a gallium arsenide substrate. A monolithic, integrated coplanar strip nonlinear transmission line is integrated on the same substrate to receive sample pulses. These pulses are reshaped by the nonlinear transmission line to have a very fast edge. This edge is differentiated by a shunt inductance of a short circuit termination of a slot line portion of the RF signal coplanar waveguide. The resulting delta function sample pulses cause the sample diodes and integrated capacitors to develop an intermediate output frequency which is a replica of the RF signal at a lower frequency and no voltage conversion loss. RF signals of up to 300 Ghz can be sampled using this circuit.

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