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:
Oct. 13, 1992
Filed:
Sep. 26, 1990
Richard C Edwards, Cedar Rapids, IA (US);
Rockwell International Corporation, Seal Beach, CA (US);
Abstract
A broadband diplexer for use in dividing input signals in accordance with frequency and in constructing multiplexers including multiple diplexers. The diplexer includes a pair of 0-degree couplers one of which is configured as a signal splitter while the other is configured as a signal combiner. A pair of filters having identical frequency selection characteristics but opposite impedance and admittance characteristics are connected in between the splitter and the output port of the combiner. In operation, input signals are received at the input port to the splitter and output signals are provided at the isolation port of the splitter and the output port of the combiner. The coupler and filters act in combination to divide the input signals in accordance with frequency so that the output signals have complementary spectra. The use of 0-degree couplers allows for very broadband performance by the diplexer.