Circuit board and method in which the impedance of a transmission-path is selected by varying at least one opening in a proximate conductive plane

A device and method for defining a signal transmission path having a selectable, continuous impedance. In one embodiment of the invention, a circuit board is provided with a signal conductor, and a conductive plane having an opening, wherein dimensions of the opening and proximity of the opening to...

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Bibliographische Detailangaben
1. Verfasser:	BARR ANDREW H
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE WAVEGUIDES
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Beschreibung
Zusammenfassung:	A device and method for defining a signal transmission path having a selectable, continuous impedance. In one embodiment of the invention, a circuit board is provided with a signal conductor, and a conductive plane having an opening, wherein dimensions of the opening and proximity of the opening to the signal conductor are selected to affect an impedance of the signal conductor. The signal conductor and the conductive plane form a transmission path with the impedance of the transmission path being a function in part of the opening and the signal conductor. Such a circuit board provides a signal-transmission path having a selectable, continuous impedance return-signal path.