Back to results
US 4,916,416 AGranted
Method for the correction of a surface wave device, especially for a reflective array compressor
AssigneeThomson-CSF
InventorJean Desbois
Life of this patent
Estimating the term…
Abstract
A method for the correction of surface wave devices consists of measuring the transfer function of an entirely finished surface wave device and then designing a surface wave corrective filter, the transfer function of which enables the correction of the transfer function of the preceding device. The method makes it possible to correct, in particular, RAC type dispersive filters.
Claims11
A method for implementing frequency response corrections of a surface acoustic wave device, comprising the steps of:
- determining a desired transfer function of said surface acoustic wave device and determining a deviation from the desired transfer function, said surface acoustic wave device being enclosed in a package;
- designing a surface acoustic wave corrective filter, a transfer function of said corrective filter making adjustments to the measured transfer function of said surface acoustic wave device based on said deviation such that the desired transfer function is obtained;
- manufacturing said corrective filter;
- and
- connecting in series said surface acoustic wave device and said corrective filter;
- and
- wherein the received transfer function is determined by the structure of said surface acoustic wave device.
4 more elements
A method for implementing frequency response corrections of a surface acoustic wave device, comprising the steps of:
- determining a desired transfer function of said surface acoustic wave device;
- measuring a transfer function of said surface acoustic wave device and determining a deviation from the desired transfer function, said surface acoustic wave device being enclosed in a package;
- designing a corrective filter, a transfer function of said corrective filter making adjustments to the measured transfer function of said surface acoustic wave device based on said deviation such that the desired transfer function is obtained;
- manufacturing said corrective filter;
- and
- connecting in series said surface acoustic wave device and said corrective filter;
- and
- maintaining said surface acoustic wave device and said corrective filter at the same temperature.
5 more elements
Dependencies are inferred from the claim text.