High permeability tapped transmission line

Wave transmission lines and networks – Coupling networks – Delay lines including long line elements

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333161, 345204, H01P 118

Patent

active

061541044

ABSTRACT:
A transmission line includes a high permeability conductor. The high permeability conductor increases the inductance-per-length of the transmission line to reduce the propagation velocity along the line. The high permeability conductor supplements a high dielectric constant insulator and high permeability core that increase the capacitance-per-length and inductance-per-length, respectively. In one embodiment, the transmission line is a microstrip line that is used in a matrix addressable display. In another embodiment, the transmission line is a coaxial line where the central conductor includes a center layer of nonmagnetic material and an outer layer of high permeability material. The high permeability conductor can be formed from a single layer of high permeability material or may be formed from a central layer of high conductivity material coated with an outer layer of a high permeability conductor.

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Allen, Mark G., "Integrated Inductors for Low Cost Electronic Packages" International Electron Device Meeting Technical Digest: 95-137 to 95-141, Dec., 1995.

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