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:
Mar. 14, 2000
Filed:
Dec. 22, 1997
Gerry Allen Parker, Trophy Club, TX (US);
Nokia Telecommunications, OY, Espoo, FI;
Abstract
An RF three-way combiner/splitter is disclosed that can be fabricated in a single signal layer on a PCB and which has better separation of the outputs and improved location of ballast resistors. The combiner/splitter includes seven one-quarter wave-length trace segments joined to form a structure in a general shape of a figure eight. The seven one-quarter wave-length trace segments connect to form six connection ports, wherein a first and second connection port is above and below a central input port and three output ports are disposed on the opposite side of the structure. A first ballast resistor is coupled to the first connection port and a second ballast resistor is coupled to the second connection port. The trace segments may be straight or some of the trace segments may be folded to decrease the physical length of the combiner/splitter.