Modular active phased array

An antenna assembly, comprising:

• a structural grid, including:
• a plurality of continuous beam members,
• a plurality of splices coupled to the continuous beam members and crossing over the top of, or under the bottom of, the plurality of continuous beam members, and
• a plurality of discontinuous beam members coupled to the splices;
• and
• a front structure coupled to the structural grid, including:
• a walkway, and
• a radome coupled to the front structure;
• where each of the plurality of continuous beam members has one or more notches configured to allow the plurality of splices to cross over or under.

An antenna assembly for an active electronically scanned array, comprising:

• a planar dual polarization, coincident phase center foam based patch radiator;
• a lower forward housing, coupled to the patch radiator, having a first side and a second side with a first set of four walls, containing;
• a plurality of modular circulators, coupled to the second side and surrounded by the first set of four walls;
• an RF manifold coupled to the modular circulators;
• an upper forward housing, having a first side coupled to the first set of four walls, and a second side with a second set of four walls, containing;
• a plurality of coldplate and power logic board pairs, and each coldplate provides conductive cooling;
• a plurality of S-Band transmit/receive modules coupled to each coldplate and power logic board pair,
• an aft housing, coupled to the upper forward housing, including:
• a first side;
• an assembly;
• a coolant distribution manifold;
• a removable cover;
• a plurality of bus bars;
• and
• a plurality of line replaceable units coupled to the first side of the aft housing with wedgelocks and injectors, including:
• a high voltage power supply;
• a low voltage power supply;
• an array driver;
• an auxiliary power supply;
• a power filter;
• and
• a beam steering control module.