Modular heat mitigation system with mmWave suppression for active electronically steered antennas

A phased array antenna comprising:

• an enclosure;
• a printed circuit board (PCB) structure provided in the enclosure, said PCB structure including a plurality of layers having dielectric layers and conductive layers;
• a plurality of patch antenna radiating elements formed on one side of the PCB structure;
• a plurality of beamforming integrated circuits (ICs) formed on an opposite side of the PCB structure from the radiating elements, where gaps are defined between the beamforming ICs;
• and
• a modular heatsink unit removably coupled to the enclosure, said heatsink unit including a heatsink, a plurality of pedestals thermally coupled thereto, where each pedestal is thermally coupled to one of the beamforming ICs, and a plurality of propagation suppressing elements, and where a separate propagation suppressing element is provided in each gap between the beamforming ICs.

A phased array antenna comprising:

• an enclosure;
• a printed circuit board (PCB) structure provided in the enclosure, said PCB structure including a plurality of layers having dielectric layers and conductive layers;
• a plurality of horn antenna radiating elements formed on one side of the PCB structure;
• a plurality of beamforming integrated circuits (ICs) formed on an opposite side of the PCB structure from the radiating elements, where gaps are defined between the beamforming ICs;
• and
• a modular heatsink unit removably coupled to the enclosure, said heatsink unit including a heatsink, a plurality of pedestals thermally coupled thereto, where each pedestal is thermally coupled to one of the beamforming ICs, and a plurality of propagation suppressing elements, where a separate propagation suppressing element is provided in each gap between the beamforming ICs.