Step adjustable attenuator

Details Step adjustable attenuator Step adjustable attenuator

1978-09-14

1980-08-05

Gensler, Paul L.

Wave transmission lines and networks

Attenuators

338195, 338288, 338307, H03H 726

Patent

active

042164443

ABSTRACT:
A step adjustable attenuator comprising a silicon substrate on one face of which are deposited thin film-type resistors and electrical conductors by which the resistors are interconnected. Contact points are arranged at the periphery of the substrate and connected to the resistors. However, the attenuating sections are not interconnected on the substrate. A conductive pattern prepared from a conductive film forms finger-like leads of which inner portions are bonded to the contact points. By its shape, the pattern ensures the interconnections between the sections and forms two rows of outputs, one for the connections on the printed-circuit board on which is implanted the attenuator and the other being associated with displaceable straps enabling attenuation to be adjusted.

REFERENCES:
patent: 3344387 (1967-09-01), Kinkel et al.
patent: 3489980 (1970-01-01), Masters
patent: 3599125 (1971-08-01), Yoshida

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