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US 5,621,364 AGranted
Weighted reflector for surface acoustic waves
AssigneeSiemens Aktiengesellschaft
InventorsWerner Ruile, Jurgen Machui, Roland Dill, Brian Lewis
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Abstract
A weighted reflector which has relatively low sensitivity to production-dependent tolerances. The reflector is based on the principle of an open-short reflector which has length-weighted reflector strips.
Claims4
A weighted surface-wave reflector, comprising:
- metallization strips which are arranged parallel to one another;
- at least one busbar,
- said metallization strips including:
- first metallization strips which are connected to one another via said at least one busbar and
- open metallization strips which are free of said at least one busbar, said open metallization strips vary in length in accordance with a predetermined weighting function, and
- said first metallization strips being in free spaces between said open metallization strips.
3 more elements
A weighted surface-wave reflector, comprising:
- metallization strips which are arranged parallel to one another;
- two busbars,
- said metallization strips including:
- connected metallization strips which are connected to one another via said two busbars and
- open metallization strips which are free of said two busbars,
- said connected metallization strips are interrupted in a longitudinal direction, a length of an interruption is determined by a predetermined weighting function, and
- said open metallization strips being provided in the interruptions.
4 more elements
Dependencies are inferred from the claim text.