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US 2020/0049798 A1Published application
Array and module calibration with delay line
AssigneeRaytheon Company
InventorsDebra J. Tonks, Stephen M. Sparagna, William Kennedy, David A. Ringheiser, Jack Lee
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Abstract
An apparatus and method for enhanced calibration of radar at the module level supports dual polarization and array calibration and alignment without the use of external test equipment. Utilizing a delay line, loop back capability at the module level allows existing receiver exciter subsystem to be used for calibration. This approach eliminates the need for manual array calibration using external RF monitor subsystem or external test antennas.
Claims20
An apparatus for calibrating radar, comprising:
- a sub-array driver module coupled to an input port of the radar;
- a plurality of array element modules coupled to the sub-array driver module;
- a controllable delay in each of the plurality of array element modules;
- and
- a plurality of sub-arrays, wherein each of the sub-arrays includes a respective sub-array driver module.
2 more elements
Dependencies are inferred from the claim text.