Wave transmission lines and networks – Attenuators
Patent
1985-05-08
1987-06-09
Gensler, Paul
Wave transmission lines and networks
Attenuators
338308, 338333, H01P 122
Patent
active
046723366
ABSTRACT:
An attenuator is in the form of a pad comprising a coating of resistive material which connects an input port, an output port and a pair of linked constant potential ports. The regions of the pad adjacent to the outer edges of the input port are provided with outwardly pointing cusps with curved boundary edges. These reduce current crowding at the edges of the input port, and avoid localized overheating of the adjacent regions of the pad, which could result in pad failure.
REFERENCES:
patent: 2471732 (1949-05-01), Feenberg
patent: 2899665 (1959-08-01), Cowles
patent: 4272739 (1981-06-01), Nesses
Gensler Paul
Marconi Instruments Limited
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