Optimization of radar antenna switching hybrid in response...

Details Optimization of radar antenna switching hybrid in response... Optimization of radar antenna switching hybrid in response...

2007-07-17

2007-07-17

Phan, Dao (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

C342S374000

Reexamination Certificate

active

10918146

ABSTRACT:
A radar system operates at various different frequencies, and routes power among various antennas by use of a hybrid arrangement. The system is precalibrated at each possible operating frequency by adjusting the phase shifts associated with the hybrid in a feedback manner to provide optimal performance, and the calibration values are stored. During normal operation, the calibration values of phase shift are selected and used for feedforward operation at each frequency.

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patent: 2004/0228422 (2004-11-01), Silveira et al.
patent: 2005/0041152 (2005-02-01), Bendov

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