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:
Dec. 27, 2011
Filed:
Jan. 30, 2008
Kiyoharu Seino, Tokyo, JP;
Masahiko Hunada, Tokyo, JP;
Kiyoharu Seino, Tokyo, JP;
Masahiko Hunada, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Since the loss of the conventional microwave device is large, when this device is applied to the microwave component, there are problems; for example, a low-noise amplifier, the noise figure is degraded, and when applied to a high-output amplifier, output and efficiency may be decreased. In particular, in the high-output amplifier of over 100 W class, heat generation at a capacitor which forms the microwave device increases, which causes a problem that the reliability of the microwave device may be decreased. A structure is formed to include a capacitor loaded between two high impedance lines the length of which has ¼ wavelength in the desired frequency band and the characteristic impedance is higher than 50Ω.