Wave transmission lines and networks – Coupling networks – Delay lines including elastic surface wave propagation means
Patent
1984-09-13
1987-01-27
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including elastic surface wave propagation means
310313R, 310315, 331107A, 333139, 333193, 361282, H03H 942, H03H 968, H03B 532
Patent
active
046396977
ABSTRACT:
A surface acoustic wave (SAW) device provides a phase shift and a first predetermined phase shift variation as a function of temperature. A passive network including a passive, reactive component is thermally and electrically coupled to the SAW device. An electrical characteristic of the component has a predetermined variation as a function of the temperature of the reactive component which provides the network with a second, predetermined phase variation as a function of temperature to compensate for the first predetermined phase variation as a function of temperature provided from the surface acoustic wave device. With this arrangement, the phase shift provided from the surface acoustic wave device is substantially invariant with temperature.
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Chase, Jr. Charles E.
Picquendar Jean E.
Yarranton Arthur
Maloney D. G.
Nussbaum Marvin L.
Raytheon Company
Sharkansky R. M.
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