Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-07-29
2008-07-29
Hirshfeld, Andrew H (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S649000, C324S601000, C702S085000
Reexamination Certificate
active
11537240
ABSTRACT:
Two ends of a transmission line whose electrical characteristics per unit length are known are connected to associated measurement ports of a network analyzer. A short standard is shunt-connected to at least three points in the longitudinal direction of the transmission line, and electrical characteristics are measured in a short-circuited state, thereby calculating error factors of a measurement system. Then an electronic device to be measured is shunt-connected to the transmission line, and electrical characteristics of the electronic device are measured. Then the error factors of the measurement system are removed from the measured values of the electronic device to be measured, thereby obtaining true values of the electrical characteristics of the electronic device to be measured. Accordingly, a highly accurate high-frequency electrical characteristic measuring method that is not affected by connection variations can be implemented.
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“In-Fixture Measurements Using Vector Network Analyzers,” Network Analysis pp. 1-32, no date.
Written Opinion, Mar. 29, 2005.
Hirshfeld Andrew H
Murata Manufacturing Co. Ltd.
Nguyen Hoai-An D.
Ostrolenk Faber Gerb & Soffen, LLP
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