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:
Nov. 19, 2002
Filed:
Aug. 20, 2001
Danny F. Ammar, Windermere, FL (US);
Eugene Fischer, Clermont, FL (US);
Xytrans, Inc., Orlando, FL (US);
Abstract
A millimeter wave filter for surface mount applications includes a dielectric base plate having opposing surfaces. A ground plane layer is formed on a surface of the dielectric base plate. At least one low temperature co-fired ceramic layer is positioned over the ground plane layer and defines an outer filter surface. A plurality of coupled line millimeter wavelength resonators are formed as stripline or microstrip and positioned on the outer filter surface. These resonators can be parallel coupled line filters, including hairpin resonators. Radio frequency terminal contacts are positioned on the surface of the dielectric base plate opposite the at least one low temperature co-fired ceramic layer. Conductive vias extend through the at least one low temperature co-fired ceramic layer, ground plane and dielectric base plate and interconnect the radio frequency terminal contacts and coupled line resonator.