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This paper presents an experience gathered on near field and far field measurements in SITU, for the failure detection and troubleshooting of phased array antennas implemented in in-service air surveillance radars (the issue being to ensure the stability of the antenna performances of the associated radars elected for a longer and longer life). Although far field and near field measurements techniques...
Modern radar systems often have the conflicting requirements of a large phased array antenna for increased power-aperture product and/or angular resolution versus wide instantaneous signal bandwidth for fine range resolution. Pulse-to-pulse diversity may also be desired as a countermeasure against coherent repeater jammers. Using the multicarrier nature of orthogonal frequency-division multiplexing...
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