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:
Apr. 02, 2019
Filed:
Jan. 14, 2016
Applicant:
National Institute of Standards and Technology, Gaithersburg, MD (US);
Inventors:
Kin P. Cheung, Rockville, MD (US);
Jason T. Ryan, Frederick, MD (US);
Jason Campbell, Frederick, MD (US);
Assignee:
NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, Gaithersburg, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 22/00 (2006.01); H01Q 1/52 (2006.01); G01S 13/00 (2006.01);
U.S. Cl.
CPC ...
G01S 13/00 (2013.01); G01N 22/00 (2013.01); H01Q 1/521 (2013.01); H01Q 1/526 (2013.01);
Abstract
A phase shift detector includes: an interferometer; and a microwave probe in electrical communication with the interferometer, the microwave probe including: a primary shield electrode; and a transmission electrode disposed proximate to the primary shield electrode, the transmission electrode and the primary shield electrode being exposed and arranged to produce an electric field, wherein the transmission electrode is isolated electrically from the primary shield electrode.