Phased array antenna provided with a calibration network

Details Phased array antenna provided with a calibration network Phased array antenna provided with a calibration network

H - Electricity

01

Q

H01Q 3/26 (2006.01)

Patent

CA 2215744

The invention comprises a phased array antenna comprising a number of waveguide radiators (19) and a power supply system and furthermore comprising a calibration network (20, 21, 22) for providing a test pulse. By directly connecting the calibration network to the waveguide radiators, a more accurate calibration is obtained, which is due to any phase and amplitude errors arising in the waveguide radiators being processed in a calibration algorithm. In a favourable embodiment, the calibration network is designed as a system of waveguides (20, 21, 22).

L'invention concerne une antenne réseau à commande de phase comprenant un certain nombre d'éléments rayonnants à guides d'onde (19), un système d'alimentation et un réseau d'étalonnage (20, 21, 22) destiné à produire une impulsion d'essai. En connectant directement le réseau d'étalonnage aux éléments rayonnants à guides d'ondes, on peut obtenir un étalonnage plus précis. Ceci est dû au fait que toutes les erreurs de phase et d'amplitude provenant des éléments rayonnants à guides d'onde sont traitées dans un algorithme d'étalonnage. Dans une forme d'exécution avantageuse, le réseau d'étalonnage est conçu comme un système de guides d'onde (20, 21, 22).

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