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Millimeter Wave Digital Arrays (MIDAS)

Background

OverviewMulti-Beam Digital Arrays at Millimeter Wave

Dominate the millimeter wave spectrum with wideband digital beamforming

• Many simultaneous beams in all directions for simplified network discovery• Wide bandwidth & frequency agility• Line-of-sight tactical communications, traditional & emerging LEO SATCOM• Scalable Solution for Multiple Applications

2 Core Tech Areas

• Digital RF silicon tile at 18-50 GHz

• Wideband antenna & T/R components

Technical ApproachRaytheon

Technical Areas 1 + 2

Direct conversion beamforming in RF SOI CMOS (45/22 nm) with InP wideband PAs and LNAs

3D Printed Radiators 3mm pitchMulti-Reticle Silicon Array Feedboard

GaAs + SiGe + CMOS3D Heterogeneous Tiles

Jariet TechnologiesTechnical Area 1

32 channel 12LP CMOS beamforming IC tile

TA3 mm wave Array Fundamentals

On-grid 3D hetero-integrated array with 90nm GaAs PAs and 3D printed wideband radiators

Northrop GrummanTechnical Area 2

Summary• 18-50 GHz element-level digital beamforming• Low-power, high dynamic range mmW transceivers• 3D packaging of CMOS, III-V & antennas• Scalable tile for large arrays

Notional MIDAS link: 50 x 50 mm2 array, 12.5 Watt transmit power, 62-70 dBm EIRP over the band

10 dB link SNRRH = 50%, No Fog

TA1/2 Performers: Craig Hornbuckle1, Ryan Walsh2, James McSpadden3

1Jariet Technologies, 2Northrop Grumman, 3Raytheon

Performer Frequency Plan CMOS ADC/DAC

Rate LO/CLK PA LNA Switch Antenna

Jariet/NGMS High IF 12LP Fin FET 8/8 GSps Local PLLs Qorvo 90 nm GaAs pHEMT (QPHT09)

Qorvo 90 nm GaAs pHEMT (QPHT09)

Qorvo 90 nm GaAs pHEMT (QPHT09) 3D Printed Notch

Raytheon SAS Direct Conversion 45nm / 22FDX 2x 4/8 GSps Distributed LO Teledyne 250nm InP HBT

Teledyne 50nm InP HEMT

Teledyne 50nm InP HEMT

Wideband Current loop

AN/FPS-85 – en.wikipedia.org/wiki/Eglin_AFB_Site_C-6Cobra Dane – en.wikipedia.org/wiki/Cobra_DanePAVE PAWS – en.wikipedia.org/wiki/PAVE_PAWSAN/SPY-1 – missilethreat.csis.org/defsys/an-spy-1-radar/AN/MPQ-65 – en.wikipedia.org/wiki/MIM-104_PatriotF-35 – www.mwrf.com/systems/radar-systems-make-historyAEHF – https://en.wikipedia.org/wiki/Advanced_Extremely_High_FrequencyMFRF – darpa.mil/program/multifunction-rfACT – darpa.mil/program/arrays-at-commercial-timescales

AEHF – www.afspc.af.mil/About-Us/Fact-Sheets/Display/Article/249024/ advanced-extremely-high-frequency-system/B-1B – www.northropgrumman.com/Capabilities/ ANAPQ164Radar/Pages/default.aspxHAPDAR – commons.wikimedia.org/wiki/ File:HAPDAR_array_installation.jpgF-22 – fullafterburner.weebly.com/next-gen-weapons/anapg-77-radar-modesSpace Fence – www.globalsecurity.org/space/systems/space-fence.htmJSTARS – en.wikipedia.org/wiki/Northrop_Grumman_E-8_Joint_STARSSMART – https://ieeexplore.ieee.org/document/4250440

3D He t e roge ne ous In t e gra t ion