Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1980-12-29
1984-12-18
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
333114, 333116, 356345, G01R 2704, H01P 512, G01B 902
Patent
active
044892713
ABSTRACT:
A compact apparatus for the accurate measurement of complex reflection coefficients and VSWR of a device over either a waveguide bandwidth or multi-octave bandwidth by preferably measuring two power levels at detectors associated with the device. The device is formed by a main coupling means which in one embodiment is a main guide arm having means for receiving a test signal and means for transmitting the signal to the device being measured. In addition to the main coupling means (arms) there are also provided detector arms each having a detector associated therewith and means coupling signals from the main arm to the detector arms with the overall design being controlled in accordance with relatively simple formulae. The techniques of the invention are embodied herein in a waveguide embodiment, a stripline embodiment and a quasi-optical embodiment of the invention.
REFERENCES:
patent: 2654863 (1953-10-01), Riblet
Riblet, H. J.; "A Swept-Frequency . . . "; Proc. of the IRE; Dec. 1948; pp. 1493-1499.
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