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:
Jul. 16, 1991
Filed:
Feb. 09, 1990
Teny L Fry, Davidsonville, MD (US);
Rose Communications, Inc., Santa Clara, CA (US);
Abstract
A hybrid network including a four port directional coupler with the terminating impedance of one port being intentionally mismatched with the characteristic impedance of the coupler. Such an intentionally mismatched port will cause the transfer signal of an input signal from an adjacent port to be reflected to another adjacent port and to be combined with the transfer signal of a second input signal, which is from an input port not isolated from the first input port. Placing the two input ports adjacent to one another also allows one input to radiate out of another adjacent input port. Alternately, a hybrid network is provided including a four port directional coupler with all ports properly terminated at the characteristic impedance of the coupler. An external combiner for signals from one port and its adjacent port allows the combining of two input transfer signals generated from the other two non-isolated input ports.