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. 13, 1993
Filed:
Sep. 24, 1991
Takuo Kashiwa, Itami, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A microwave integrated circuit includes a matching circuits. The microwave integrated circuit includes a main transmission line having a strip line and a shorted stub or an open stub, all of which are arranged on a semiconductor substrate. A phase control circuit connected in parallel with the main transmission line controls the passing phase of the main transmission line. Therefore, the electrical length of the main line can be changed and the passing phase through the main line can be controlled for adjusting impedance matching in accordance with changes in the impedance of the element to be matched, resulting in precise impedance matching at a desired frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile