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. 03, 1984
Filed:
Jul. 22, 1982
Hitachi Cable Ltd., Tokyo, JP;
Abstract
A low loss leakage transmission line including a cylindrical dielectric tube the wall thickness d.sub.2 of which is selected to satisfy ##EQU1## where .epsilon..sub.1 is the dielectric constant of the internal space within the tube, .epsilon..sub.2 is the dielectric constant of the material which forms the tube, and n is a positive odd integer. A loss layer may be disposed around the cylindrical dielectric tube to capture any lost wave energy. In one embodiment, a plurality of cylindrical dielectric tubes of different dielectric constants are coaxially arranged with the wall thickness of each of the tubes satisfying the above formula.
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