Abstract:
An apparatus for transmitting electrical signals is disclosed. The apparatus includes a substrate and a twisted pair of conductors located on the substrate. The twisted pair of conductors has a first layer comprising conductive material, a second layer comprising nonconductive material, and a third player comprising conductive material. The first layer has a plurality of segments separated by a plurality of gaps. The second layer is positioned in said gaps and electrically insulates a portion of the segments positioned within the gaps. The third layer is positioned over the second layer. The third layer is configured to electrically connects an end of one segment to an end of another segment. The twisted pair of conductors formed by the three dimensional structure comprises two electrically isolated conductors twisted about each other.
Abstract:
A transmission line circuit includes a dielectric layer and a plurality of pairs of conductive lines extending generally along a first direction. The conductive lines in each pair are separated by the dielectric layer, and the conductive lines in each pair intermittently cross at crossing points that are separated by a first distance. The crossing points of adjacent pairs of the conductive lines are offset along the first direction.
Abstract:
A multilayer printed circuit board ("PCB") coil that simulates a coil formed from litz wire. The PCB includes a plurality of alternating conductor and insulating layers interconnected to cooperatively form the coil. Each conductor layer includes a trace that follows the desired coil shape and is divided into a plurality of discrete conductor segments. The segments are electrically connected across layers to provide a plurality of current flow paths (or filaments) that undulate between the layers in a regular, repeating pattern. The coil may be configured so that each filament spends a substantially equal amount of time in proximity to the paired coil and therefore contributes substantially equally to the self or mutual inductance of the coil. Each conductor layer may include a plurality of associated traces and intralayer connector that interconnected so that each filament undulates not only upwardly/downwardly, but also inwardly/outwardly in a regular, repeating pattern.
Abstract:
A printed solenoid inductor delay line system comprises discrete delay sections, where the inductor is implemented in the form of a printed, spiraling solenoid, with the solenoid axis in the plane of the multi-layer printed circuit board (PCB).
Abstract:
This invention discloses s a double sided insert board, on which one side is provided with at least one front board connectors according to the notch width, the other side is provided with at least one back board connectors according to the notch width. The front board connectors and the back board connectors are located at the same level on the double sided insert board as well as are staggerd about. The front board connectors and the back board connectors are the uniform board connectors of same standard and with same pins. The double sided insert board according to the invention satisfy the common usage of the front board and the back board. The invention also has no special demands to the design, production, and manufacture of the boards, which reduces the production cost and difficulties in project. As the same time, the front board and the back board are same, which reduces the cost for design.