Wave transmission lines and networks – Coupling networks – Delay lines including long line elements
Patent
1986-03-31
1987-07-07
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including long line elements
333164, 333202, 333245, 357 27, H01P 120, H01P 900, H01P 1218
Patent
active
046790128
ABSTRACT:
Transversal characteristic filter using a magnetostatic-wave device having amplitude weighted transducer assemblies. The input transducer includes a multi-fingered conductive layer with each finger being equally dimensioned and spaced. Each finger is separately connected to a contact of a field effect transistor integrated onto a semiconductor chip. A separate transistor is available for connection to each finger. The contact widths of the transistors vary depending upon the location of the connected finger from the center-most finger. A distribution approaching sin(x)/x is desirable in most applications. At the output or combining end of the device, the transducer fingers are separately connected to the gates of individual transistors whose junction widths vary symmetrically about the width of the junctions of the transistor connected to the center-most finger. Phase reversal is provided for fingers which are sufficiently displaced to be aligned with the side lobes of the sin(x)/x current distribution, at both the input and output transducers.
REFERENCES:
patent: 3864647 (1975-02-01), Bongianni
patent: 4028639 (1977-06-01), Hagon et al.
patent: 4137470 (1979-01-01), Desormiere
patent: 4152676 (1979-05-01), Morganthaler et al.
patent: 4199737 (1980-04-01), Patterson et al.
patent: 4207546 (1980-06-01), Grudowski
patent: 4209759 (1980-06-01), Vollvet
patent: 4283692 (1981-08-01), Adam
patent: 4291283 (1981-09-01), Castera
patent: 4314214 (1982-02-01), Castera et al.
patent: 4316162 (1982-02-01), Vollvet et al.
patent: 4328473 (1982-05-01), Montress et al.
patent: 4465986 (1984-08-01), Loh et al.
Adam et al.-"Magnetostatic-Wave Devices Move Microwave Design into the Gigahertz Realm", Electronics May 8, 1980; pp. 123-128.
Adam-"A Temperature Stabilized Magnetostatic Wave Device", 1979 IEEE MTT-S International Microwave Symposium Digest, Orlando, FL, USA (30 Apr.-2 May 1979); pp. 160-161.
Nussbaum Marvin L.
Sutcliff W. G.
Westinghouse Electric Corp.
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