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:
Feb. 03, 1981
Filed:
Mar. 19, 1979
Ronald E Jachowski, Paradise Valley, AZ (US);
Decibel Products, Inc., Dallas, TX (US);
Abstract
A cubical device includes six square sides connected to form a cube. Each side has an electrically conductive inner surface electrically connected to the other inner surfaces. A plurality of electric field probes attached to coaxial connectors centrally mounted on respectively perpendicular sides of the cube extend into the volume bounded by the cube. In one embodiment of the invention, three opposing pairs of electric field probes extend into the volume from opposite sides of the cube. The electrical cube then functions as three independent bandpass filters, each having a 'Q' determined by the volume. In another embodiment of the invention, an output probe extends into the cavity at a predetermined angle and senses the standing wave patterns produced in response to the electric field probes, whereby the cubical apparatus functions as a bidirectional combiner for up to three channels. In a further embodiment of the invention, one or more grounded conductive loops extend into the volume to produce interference between standing wave patterns therein, effecting internal coupling which causes the cubical device to function as one of a variety of composite filters, such as a double tuned filter or a composite bandpass filter with one or more notches in its output characteristic.