(19)
(11) EP 0 036 746 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.12.1981 Bulletin 1981/52

(43) Date of publication A2:
30.09.1981 Bulletin 1981/39

(21) Application number: 81301118

(22) Date of filing: 17.03.1981
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 20.03.1980 US 132020

(71) Applicant: ZENITH RADIO CORPORATION
 ()

(72) Inventor:
  • Dobrovolny, Pierre
     ()

   


(54) Method and apparatus for line isolation and interference shielding for a shielded conductor system


(57) method and structure is disclosed for isolating the shield of a shielded conductor system from a low frequency power source to which the shield may be connected. In a preferred embodiment, the isolation technique includes providing an interruption in the conductor's shield and situating within the interruption dielectric and magnetically absorptive material so as to create at least a pair of capacitances across the interruption, and such that the capacitances are separated by magnetically absorptive material. In this manner, low frequency isolation is achieved and the field within the cable is shielded from ambient high frequency electromagnetic interference which could otherwise leak through the interruption into a desired high frequency signal path within the conductor.







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