Fiber optic delay lines in the form of a modified corporate feed having progressive phase delays and a corporate feed having equal phase delays are used to couple RF modulated light signals to detecting, mixing, amplifying and radiating devices of an active array radar. Different RF signals may be sent...http://www.google.fr/patents/US5933113?utm_source=gb-gplus-shareBrevet US5933113 - Simultaneous multibeam and frequency active photonic array radar apparatus
Simultaneous multibeam and frequency active photonic array radar apparatus
