Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1981-06-22
1984-01-24
Gensler, Paul L.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
333125, 333128, G01R 2704
Patent
active
044279361
ABSTRACT:
A compact apparatus for the accurate measurement of complex reflection coefficients and VSWR of a device over a bandwidth of an octave or greater by preferably measuring three power levels at detectors associated with the device. The device is formed by the junction of 5 transmission lines two of which are used for receiving a test signal and for transmitting the signal to the device being measured. The other three transmission lines are connected to detector arms each having a detector associated therewith. The techniques of the invention are embodied herein in a waveguide embodiment, a stripline embodiment and a microstrip embodiment of the invention.
REFERENCES:
patent: 3136962 (1964-06-01), Bowness
patent: 3156879 (1964-11-01), Hess
patent: 3701054 (1972-10-01), Hagler et al.
patent: 4328471 (1982-05-01), Quine
Engen, The Six-Port Reflectometer: An Alternative Network Analyzer, IEEE Trans. on MTT, vol. MTT-25, Dec. 1977, pp. 1075-1080.
Granville-George et al., Computer Controlled 6-Port Reflectometer. . . , Conf: IEE Coll. on Microwave Measurement, London, Eng., 20 May 1981.
Crandell et al., Reflectometers for Millimeter-Wave Measurements, Microwave Journal, vol. 23, No. 6, Jun. 1980, pp. 59, 60, 63.
Montgomery et al., Principles of Microwave Circuits, McGraw-Hill, N.Y. 1948, pp. 455-459.
Hansson Bertil E. R.
Riblet Gordon P.
Gensler Paul L.
Microwave Development Labs
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