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Passive electronically scanned array

A passive electronically scanned array (PESA), also known as passive phased array, is an antenna in which the beam of radio waves can be electronically steered to point in different directions, in which all the antenna elements are connected to a single transmitter and/or receiver. The largest use of phased arrays is in radars. Most phased array radars in the world are PESA. The civilian microwave landing system uses PESA transmit-only arrays.

List of PESA radars
AN/FPQ-16 PARCS at Cavalier Space Force StationAN/MPQ-53AN/MPQ-65AN/SPQ-11 Cobra JudyAN/SPY-1 Aegis combat systemAN/TPQ-36 and AN/TPQ-37 Firefinder radars • AN/TPS-75 transportable 3D air search radar • AN/MPQ-64 SentinelCS/MPQ-90 Bee EyeAN/APY-1/2 Boeing E-3 SentryAN/APY-7 for Northrop Grumman E-8 Joint STARSAN/APQ-164 B-1B (Northrop Grumman formerly Westinghouse ESG) • AN/APQ-181 B-2 Spirit (initial version, now AESA) • ARTHURARABELEL/M-2026B VSHORADEMPARSaab Giraffe 40/50/75/S/AMB • Flap Lid and Tomb Stone for the SA-10 and SA-20 systems respectively • Héraklès • FuMG 41/42 Mammut radar used by Nazi Germany for early warning against Allied bombers (world's first operational phased array radar) • Rajendra RadarZaslon, first-ever electronically scanned radar in a fighter jet (MiG-31) • N035 Irbis (see Sukhoi Su-35BM) • RBE2 (Rafale) • NIIP N011M Bars for SU-30MKI • Leninets V004 (Su-34) • OPS-12 naval radar • Hensoldt (EADS) • Asr, an Iranian PESA • Multi-function radar of the KM-SAMSMART-S Mk2 ==References==
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