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:
Jul. 28, 2026
Filed:
Sep. 08, 2022
Nec Corporation, Minato-ku, JP;
Kohei Yoshida, Tokyo, JP;
Kenji Wakafuji, Tokyo, JP;
Ryota Nihei, Tokyo, JP;
Kazuyuki Hayashi, Tokyo, JP;
Fujio Okumura, Kanagawa, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A phase shifter that includes a 90-degree hybrid circuit and a variable-length stub group including two variable-length stubs connected to the 90-degree hybrid circuit. The variable-length stub includes a first switch connected to the 90-degree hybrid circuit and including vanadium dioxide of a first composition that phase-transitions between an insulation phase and a metal phase in a first phase transition temperature range, a first stub connected to the first switch, a second switch connected to the first stub and including vanadium dioxide of a second composition that phase-transitions between an insulation phase and a metal phase in a second phase transition temperature range higher than the first phase transition temperature range, and a second stub connected to the second switch and having an end grounded.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile