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. 09, 2002
Filed:
Aug. 27, 1998
Satoru Tomie, Gamo-gun, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
In a conventional high-frequency input/output feedthrough having a microstrip line, for a millimeter wave band, the reliability of a hermetic seal portion was low and transmission characteristics in the millimeter wave band were not preferable. A high-frequency input/output feedthrough of the present invention includes: a dielectric substrate with a ground conductor on a bottom face thereof; a wall member joined onto the top face of the dielectric substrate; a pair of line conductors formed in line with each other on both sides of the wall member on the top face of the dielectric substrate; an inside-layer line conductor which is formed to be in line and parallel with the pair of line conductors below the wall member inside the dielectric substrate, both ends of which are electrically connected by through conductors, to respective end portions of the pair of line conductors on both sides of the wall member, wherein an interval of the through conductors are set to be a quarter of a wavelength of a high-frequency signal to be used. The high-frequency input/output feedthrough is characterized by a hermetic seal portion of high reliability and preferable transmission characteristics.