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:
Jan. 18, 2000
Filed:
Dec. 15, 1997
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333116 ; 333238 ; 29829 ; 156 47 ;
Abstract
In a coupled line, microstrip lines are formed so as to be arranged with a spacing that is narrower than the smallest possible space that is obtainable with a conventional electrode forming process, on a top side thereof spaced away from a dielectric substrate. The microstriplines have a trapezoid-shaped cross-section with the narrower major surface at the bottom, in contact with the dielectric substrate. Such formation makes it possible to strengthen the coupling between the microstrip lines, and to reduce the conductor loss of the microstrip lines.