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:
Sep. 07, 1993
Filed:
Jun. 05, 1992
Applicant:
Inventors:
Assignee:
Forem S.p.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ;
U.S. Cl.
CPC ...
333116 ; 333238 ;
Abstract
A method for increasing the directivity and adaptation of directive microwave couplers formed of two spaced apart lines, in which the length of each line is reduced to a value of less than one quarter of the operating wavelength. Capacitance is added to the coupler to counter the reduction of capacitance resulting from the shortened lines. The capacitance is added by: (1) increasing the surface area of the shortened lines by adding lateral pads; and (2) providing a dielectric bridge across the pads.