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. 14, 2004
Filed:
Oct. 12, 2000
Nobuki Hiramatsu, Seika-cho, JP;
Takeshi Okamura, Nara, JP;
Kazuki Hayata, Uji, JP;
Yoshitake Terashi, Kagoshima, JP;
Hironori Kii, Seika-cho, JP;
Hiroshi Uchimura, Kagoshima, JP;
Akinori Sato, Hayato-cho, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A NRD guide includes a pair of parallel plate conductors opposed to each other at a spacing equal to or shorter than half the wavelength of a high-frequency signal to be transmitted and having opposing inner surfaces whose arithmetic average roughness Ra satisfies 0.1 &mgr;m≦Ra≦50 &mgr;m, and a dielectric strip arranged between the pair of parallel plate conductors and held in contact with the respective inner surfaces of the parallel plate conductors. The dielectric strip is strongly secured to the inner surfaces to exhibit an excellent durability. The transmission loss of the high-frequency signal can be effectively suppressed.