Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1981-06-30
1983-08-02
Grimley, A. T.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
361424, H05K 900
Patent
active
043967957
ABSTRACT:
An RF shielding gasket is provided for establishing low impedance paths, in a given frequency range, in the interface area between two conductive surfaces. The gasket includes a first and second plurality of stubs. The stubs are joined to one another by a conductive member. The stubs are open circuited at one end and connected to the conductive member on the other end. Each stub is folded back upon itself between the two ends. In the interface area, portions of each of the conductive surfaces function as ground planes and a first and second plurality of microstrip lines are thus provided. The open circuits are transformed into low impedance paths, in the frequency range of interest, between the second end of the stubs and the portions of the first and second conductive surfaces. In one embodiment, the stubs and conductive member are formed into a substantial U-shape with a resilient core in the central volume to form a compact RF gasket.
REFERENCES:
patent: 2317813 (1943-04-01), Schoenborn
patent: 2604507 (1952-07-01), Tyson
patent: 2825042 (1958-02-01), Tollefson et al.
patent: 4347420 (1982-08-01), Ikeda et al.
Grimley A. T.
Meise W. H.
RCA Corporation
Tone D. A.
Tripoli J. S.
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