Flat transmission path for communication system
AssigneeSocieta Italiana Telecomunicazioni Siemens S.p.A.
InventorsDalmazio Raveglia, Carlo Lonati, Giancarlo Macchi
Life of this patent
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Abstract
A transmission path for a pulse-type communication system comprises two flat outer conductors and one flat inner conductor separated from one another by layers of dielectric material such as Teflon. The maximum effective thickness of the conductors is on the order of magnitude of the penetration depth of the current. The stack of conductive and nonconductive layers is flanked by two ferrite strips of the same height as the stack and in contact therewith, these strips serving to gather the laterally emanating lines of force into closed loops alongside the stack. At least one of the strips may be subdivided into sections separated by gaps through which branch leads can extend into contact with the flat conductors.
Claims5
A transmission path for a communication system operating with pulsed signals, comprising:
- a flat elongate inner conductor and two flat elongate outer conductors bracketing said inner conductor, said inner and outer conductors being substantially coextensive in width, the effective thickness of each of said conductors in a common transverse plane being at most on the order of magnitude of the penetration depth of an alternating current at a frequency in the kHz range;
- two dielectric layers of substantially the same width as said conductors and of greater thickness than the latter separating said inner conductor from said outer conductors, thereby forming with said conductors a stack of substantially rectangular cross-section;
- and
- ferromagnetic elements alongside said stack for maintaining the lines of force of a magnetic field, generated by said pulse signals, substantially parallel to said conductors at the minor sides of said cross-section.
Dependencies are inferred from the claim text.