Wave transmission lines and networks – Attenuators
Patent
1976-12-16
1979-03-27
Gensler, Paul L.
Wave transmission lines and networks
Attenuators
338128, 338138, 338174, H03H 726
Patent
active
041468538
ABSTRACT:
A main resistance element and an elongated conductor are arranged coaxially and a plurality of secondary resistance elements are arranged radially and connected between the main resistance element and the conductor. A slider is ohmically movable on the main resistance element to provide a variable attenuator with low impedance and logarithmic attenuation to at least -60 db. An auxiliary resistance element may be provided coaxially with the main resistance element and the conductor with another set of secondary resistance elements connecting the auxiliary resistance element with the conductor, the ends of the main and auxiliary resistance elements being connected together.
REFERENCES:
patent: 2517180 (1950-08-01), Davis
patent: 2536501 (1951-01-01), Hood et al.
patent: 3341790 (1967-09-01), Candilis
patent: 3740676 (1973-06-01), Garuts
patent: 3824506 (1974-07-01), Bacher
patent: 4035747 (1977-07-01), Hindermayr et al.
Kiyono Tetsuhiro
Nakamura Moritoshi
Alps Electric Co. ,Ltd.
Dunne Gerard F.
Gensler Paul L.
Shoup Guy W.
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