Maryland's Defense Patent Database

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Antenna calibration method and system

Patent image
NRL

A phased array antenna system includes an RF front end, a radome, and an optical calibrator embedded in the radome for enabling in-situ calibration of the RF front end. The optical calibrator employs an optical timing signal generator (OTSG), a Variable Optical Amplitude and Delay Generator array (VOADGA) for receiving the modulated optical output signal and generating a plurality of VOADGA timing signals, and an optical timing signal distributor (OTSD). The in-situ optical calibrator allows for reduced calibration time and makes it feasible to perform calibration whenever necessary.

Inventors: 
Paek, Eung Gi; Parent, Mark G.; Choe, Joon Y.
Patent Number: 
Technical domain: 
Communications
FIle Date: 
2008-06-25
Grant Date: 
2010-03-02
Grant time: 
615 days
Grant time percentile rank: 
11
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY