Microwave amplifier tube coherency test set
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsChester C. Phillips, William H. Zinger, Robert F. Platte, Melrose M. Jesurun, Dennis H. Matthias
Life of this patent
Estimating the term…
Abstract
A test set for an amplifier or other electronic device in which a waveform enerator furnishes a modulated RF signal to the item under test. Sensors extract samples of the RF signal at the item's input and output. A detector-mixer network compares and processes the input and output sample signals and produces signals at its output which are indicative of the phase distortion and amplitude distortion introduced by the item. The phase and amplitude distortion signals are sampled and held for each modulating signal pulse and are then processed to compile statistical data regarding the item's performance.
Claims5
An apparatus for testing the coherency of an electronic device including an input and an output comprising:
- pulse means connected to the input of said electronic device for energizing said electronic device with an input series of pulses;
- first means coupled between said pulse means and said electronic device input for providing a first signal indicative of the input to said electronic device;
- second means coupled to the output of said electronic device for providing a second signal indicative of the output of said electronic device;
- detector means having first and second detector inputs and first and second detector outputs;
- said first detector input being coupled to said first means such that said detector means receives said first signal and said second detector input being coupled to said second means such that said detector means receives said second signal;
- whereby in response to said input series of pulses, a first series of signals are present at said first detector output and a second series of signals are present at said second detector output;
- means for storing each of said first series of signals and each of said second series of signals;
- a first power divider connected to said first means for providing a first power divider signal and a second divider signal which is 90.degree. phase shifted from said first power divider signal;
- and
- a second power divider connected to said second means for providing third and fourth power divider signals.
Dependencies are inferred from the claim text.