Printed circuit with inductively coupled printed coil elements a

Details Printed circuit with inductively coupled printed coil elements a Printed circuit with inductively coupled printed coil elements a

1974-06-12

1977-12-13

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 70S, 333 79, H03H 708, H03H 1300, H01G 440, H01F 2740

Patent

active

040632016

ABSTRACT:
A printed circuit including a first conductor formed on an insulating plate as an inductance element, a second conductor formed on the insulating plate as an inductance element which is inductively coupled to the first element, and a common conductor formed on the insulating plate between the first and second elements and mutually inductively coupled to the first and second elements to provide a predetermined desired coefficient of coupling between the first and second elements. A preferred detailed form of the invention additionally includes printed capacitor elements in circuit with the inductance elements to provide an electric band-pass wave filter.

REFERENCES:
patent: 2252092 (1941-08-01), Newman
patent: 2688119 (1954-08-01), Gere
patent: 2751558 (1956-06-01), Grieg et al.
patent: 2759098 (1956-08-01), White et al.
patent: 2762987 (1956-09-01), Mackey
patent: 2951149 (1960-08-01), Grieg et al.
patent: 3512254 (1970-05-01), Jenkins et al.
patent: 3665570 (1972-05-01), Brooks
patent: 3858126 (1974-12-01), Kameya
patent: 3947934 (1976-04-01), Olson
"Reference Data for Radio Engineers", Howard W. Sams and Co., Inc. New York, 1968, pp. 20-23.
Dishall, "Gaussian-Response Filter Design" in Electrical Communication, vol. 36, No. 1, 1959; pp. 3 & 9-10.

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