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.:

US 11131699 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 28, 2021

Filed:

Sep. 07, 2018
Applicant:

National Institute of Advanced Industrial Science and Technology, Tokyo, JP;

Inventors:

Ryo Sakamaki, Tsukuba, JP;

Masahiro Horibe, Tsukuba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/06 (2006.01); G01R 1/067 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 27/06 (2013.01); G01R 1/06772 (2013.01); G01R 31/28 (2013.01);
Abstract

A method that includes changing a probe angle with respect to the conductor surface of a substrate that has a flat conductor surface mounted on the mounting surface of a stage in a high-frequency test system, thereby changing the state of contact of the tip of a signal terminal and tip of a ground terminal with the conductor surface, outputting high-frequency signals from the signal terminal to the conductor surface and receiving reflected signals using the probe to find S-parameters at different probe angles, and determining, based on a plurality of the S-parameters, a reference probe angle at which the reference line formed connecting the tip of the signal terminal and tip of the ground terminal is parallel with the conductor surface.


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