Multiport automatic calibration device for a multiport test system
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United States of America Patent
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Sep 2, 2003
Grant Date -
May 9, 2002
app pub date -
Sep 18, 2001
filing date -
Sep 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment of the invention, there is provided an N-port automatic calibration device comprising N-ports, wherein each port is adapted to be coupled to a port of an N-port multiport test set. The N-port automatic calibration device comprises a single-pole, N-1 throw switch having a single-pole coupled to a first port of the automatic calibration device and having each throw of the N-1 throws coupled to a corresponding port of the automatic calibration device. In addition, the N-port automatic calibration device comprises at least one single-pole, double-throw switch, having a single-pole coupled to a second port of the N-ports of the automatic calibration device, having a first throw coupled to a first load impedance, and having a second throw coupled to a throw of the N-1 throws of the single-pole, N-1 throw switch.
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