The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2009
Filed:
Jun. 13, 2005
Masato Haruta, Saitama, JP;
Hiroyuki Konno, Saitama, JP;
Naoya Kimura, Gunma, JP;
Yoshikazu Nakayama, Saitama, JP;
Masato Haruta, Saitama, JP;
Hiroyuki Konno, Saitama, JP;
Naoya Kimura, Gunma, JP;
Yoshikazu Nakayama, Saitama, JP;
Advantest Corporation, Tokyo, JP;
Abstract
There are measured characteristics of a jig (fixture) used to calculate and measure circuit parameters of a device under test. There is provided a jig characteristic measuring device which measures the jig characteristics of a jig which includes signal lines used to connect a DUT and a network analyzer with each other (namely, the reflection characteristics of the signal lines, and the transmission S parameters), measures the reflection coefficients of the signal lines in an open state where the DUT is not connected to the signal lines measures the reflection coefficients of the signal lines in a short-circuit state where all the signal lines are grounded, and derives the jig characteristics of the jig based on these measured results.