Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1986-09-11
1989-03-28
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 77B, 36457104, G01R 2704
Patent
active
048167673
ABSTRACT:
An RF network analyzer is disclosed which is suitable for both laboratory and automated production measurements. An important feature of the invention is the ability of the user to completely specify the method of calibration to be used. In particular the user can select any three arbitrary RF standards having known electromagnetic response characteristics and can attach them in any arbitrary order to perform the calibration of the instrument. This calibration is carried out by measuring the RF scattering parameters S.sub.11, S.sub.21, S.sub.12, and S.sub.22, storing the data in a memory, and then calculating vector error correction coefficients that are characteristic of systematic errors introduced by the RF network analyzer into measured scattering parameters.
REFERENCES:
patent: 3904959 (1975-09-01), Britton, Jr.
patent: 4103223 (1978-07-01), Weinert
patent: 4104583 (1978-08-01), Engen
patent: 4361801 (1982-11-01), Meyer
patent: 4680538 (1987-07-01), Dalman
HP catalog-1983 edition--p. 455.
Weinert: "A Dual-Channel Vector Ratio Meter"--Conference on MW Measurements--Loudon--UK--May 1981--(6 pages).
Weinert: "A 1-18 GHZ Attenuator Calibrator"--IEEE Trans. on Instrum., Dec. 1976--pp. 298-306.
Winston: "A 5 MHZ Spectrum Analyzer"--Tekscope--vol. 7, No. 3 (1975).
Barr, IV John T.
Cannon Wayne C.
Eisenzopf Reinhard J.
Fromm Jeffery B.
Hewlett--Packard Company
Milks, III William C.
Solis Jose M.
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