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This version (21 Sep 2023 13:47) was approved by Connor Bryant.The Previously approved version (22 Aug 2023 21:11) is available.Diff

Satcom Phased Array Reference Design for Space

For satellite systems that require in-mission frequency band re-configuration, a multi-path design can be used to implement a single hardware design that can operate from L band to Ka band. This reference design shows an approach to developing a hybrid beamforming RX and TX system with up/down converter that covers X, Ku and Ka band for space-based satellite communication. However, the Up/Down converter can be bypassed to enable operation in the UHF, L, S and C bands.

The reference design includes all aspects of the system including:

  • Analog Beamforming
  • RF Down/Up Conversion
  • LO and Clock Generation and Distribution
  • ADC and DAC Digitization
  • Digital Signal Processing
  • FPGA recommendation
  • Recommended Power Management

The highlighted performance for this reference design is the following:

  • 16 Receive and 16 Transmit Elements (scalable)
  • Wide Frequency Coverage - Ka-band focused analog beamformer paired with wideband RF channel + Digitizer (L through Ka band)
  • Wide instantaneous BW
  • High NPR
  • Low Noise figure
  • Quick reconfiguration
  • Synchronization across elements

Specifications

Specifications are in progress and will be published in the coming weeks. (Sept. 2023)

Resources

  1. Receiver Signal Chain Overview and Theory of Operation
    1. RX Beamforming Network
    2. Down-converter Design and Operation
      1. Frequency Plan
      2. Spurious performance
    3. IF Section
    4. Analog to Digital Converter (ADC) + DSP
    5. Timing and Control
      1. RX Beamforming Network
      2. Down-conversion and IF Section
    6. RX Performance Simulations and Measurements
      1. Noise Power Spectral Simulation
      2. Two-Tone Test Spectral Simulation
      3. System Cascade
  2. Transmitter Signal Chain Overview and Theory of Operation
    1. Digital to Analog Converter (DAC) + DSP
    2. Up-converter Design
    3. TX Beamforming Network and PA
    4. Timing and Control
    5. TX Performance Simulations and Measurements
  3. LO Generation
    1. Receive LO Path
    2. Transmit LO Path
    3. Simulated Performance
  4. Power Supply Design
  5. Size and Scalability
  6. Software Architecture
    1. Timing and Synchronization
    2. Supported Drivers
  7. Radiation Susceptibility
    1. RF Components
    2. Digitizer
    3. Power Supply Network

Support

For support on this reference design, please contact us through our technical support portal at the follow link: en/support/technical-support.html


Bill of Materials

The table below lists the part numbers for the components used the design. Where space qualified parts are not available, the commercial part number is listed. Some of the part numbers listed below are space specials which do not appear on analog.com. Please contact ADI sales or an authorized distributor for more information and to receive orderable part numbers.

Circuit QTY Device Description Package Process Qualification Level Production Status
RxxADRF5730 0.1 to 40 GHz Digital Step Attenuator 24-Terminal LGA Advanced SiliconCSHIn Development
Rx4ADRF5022-CSH 0.1 GHz to 45 GHz Silicon SPDT Reflective Switch12-Lead LGA Advanced SiliconCSH In Development
Rx8ADRF5144 1 GHz to 20 GHz Silicon SPDT Reflective Switch 20-Terminal LGA Silicon TBDRecommended for New Designs
Rx8ADRF5040 9 kHz to 12 GHz Silicon SP4T Nonreflective Switch Surface-Mount LFCSP SiliconTBDRecommended for New Designs
Rx4HMC8413-CSL Low Noise Amplifier, 0.01 GHz to 9 GHz 6-Lead LFCSPGaAs pHEMPTCSLRecommended for New Designs
Rx16ADL8142S Low Noise Amplifier, 23 GHz to 31 GHz 8-Lead LFCSPGaAs pHEMPTCSLRecommended for New Designs
Rx2AD9082-CSH MxFE Quad, 16-Bit, 12 GSPS RF DAC and Dual, 12-Bit, 6 GSPS RF ADC 324-Ball BGA-TBD Recommended for New Designs
Rx4ADAR3001S-CSL 27.5 GHz to 31 GHz, 4-Beam and 4-Element, Ka-Band Beamformer 311-Pin BGA-CSL Recommended for New Designs
Rx4ADAR5000 4-Way RF Splitter Combiner, 17 GHz to 32 GHz WLCSP-TBD Recommended for New Designs
Rx2ADMFM2000 0.5 - 32 GHz Microwave Down Converter SIP179-Pin BGA-TBDPre-Release
RxxHFCN-3100+ Mini Circuits LTCC High Pass Filter, 3400 - 9900 MHzpackage GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
RxxLFCW-5000+ Mini Circuits LTCC Low Pass Filter, DC - 5000 MHz package GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
RxxLFCG-2600+ Mini Circuits LTCC Low Pass Filter, DC - 2600 MHz package GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
RxxBFHK-6751+ Mini Circuits LTCC Band Pass Filter, 5900 - 6900 MHz package GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
RxxBFCQ-2702+ Mini Circuits LTCC Band Pass Filter, 22000 - 31000 MHz package GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
RxxB291MB0S Knowles DLI 29.1 GHz Surface Mount Band Pass Filter package GaAs Integrated Passive ComponentContact Knowles DLIRecommended for New Designs
TXxADRF5730 0.1 to 40 GHz Digital Step Attenuator 24-Terminal LGA Advanced SiliconTBDRecommended for New Designs
TXxADRF5022 0.1 GHz to 44 GHz Silicon SPDT Reflective Switch12-Lead LGA Advanced SiliconAQEC-Standard Recommended for New Designs
TXxADRF5144 1 GHz to 20 GHz Silicon SPDT Reflective Switch 20-Terminal LGA Silicon TBDRecommended for New Designs
TXxHMC8413 Low Noise Amplifier, 0.01 GHz to 9 GHz 6-Lead LFCSPGaAs pHEMPTTBDRecommended for New Designs
TXxHMC7950 Low Noise Amplifier, 2 GHz to 28 GHz 16-Lead LCCGaAs pHEMPTTBDRecommended for New Designs
TXxADAR3000 17 GHz to 22 GHz, 4-Beam and 4-Element, Ka-Band Beamformer SIP 311-ball CSPBGA -TBD Recommended for New Designs
TXxADAR5000 4-Way RF Splitter Combiner, 17 GHz to 32 GHz WLCSP-TBD Recommended for New Designs
TXxADMFM2001 7 GHz to 31 GHz Microwave Up Converter SIP179-Pin BGA-TBDPre-Release
TXxLFCG-4400+ Mini Circuits LTCC Low Pass Filter, DC - 4400 MHzpackage GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
TXxL204XF4S Knowles DLI 20.4 GHz Surface Mount Low Pass Filter package GaAs Integrated Passive ComponentContact Knowles DLIRecommended for New Designs
TXxB192NB2S Knowles DLI 19.2 GHz Surface Mount Band Pass Filter package GaAs Integrated Passive ComponentContact Knowles DLIRecommended for New Designs
TXxBFHK-1982+ Mini Circuits LTCC Band Pass Filter, 17500 - 22200 MHzpackage GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
LO1ADF4371S 62.5 MHz to 32 GHz Synthesizer with Integrated VCO 7×7 LGA Silicon CSHIn Development
LO2ADMV8416 6.3 GHz to 18 GHz, Tunable Band-Pass Filter 6×6 LFCSP GaAsCommercialRecommended for New Designs
LO2ADMV8432 15.1 GHz to 32 GHz, Tunable Band-Pass Filter 6×6 LFCSP GaAsCommericalRecommended for New Designs
LO7ADH1126S (HMC1126)Low Noise Amplifier, 400 MHz to 52 GHz 5×5 LGA GaAs pHEMPTK Recommended for New Designs
LO2ADRF5022-CSH Silicon Non-Relfective SPDT Switch, 100 MHz to 45 GHz3×3 LGA SiliconCSHIn Development
LO2KAT-3+ Mini Circuits DC to 43.5 GHz Absorptive 3dB fixed attenuator2×2 MCLP GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
LO2ADRF5730-CSH 0.1 to 40 GHz Digital Step Attenuator 4×4 LGA SiliconCSHIn Development
LO4EP2KA+ Mini Circuits 10 to 43.5 GHz 2 Way-0° Power Splitter 3.5×2.5 QFN GaAs Integrated Passive Component Contact Mini CircuitsRecommended for New Designs
DIGI2AD9082-CSH MxFE Quad, 16-Bit, 12 GSPS RF DAC and Dual, 12-Bit, 6 GSPS RF ADC 324-Ball BGA-TBD Recommended for New Designs
DIGI1LTC6953Ultralow Jitter, 4.5GHz, 11 Output Clock Distributor 52-Lead QFN-TBD Production
DIGI2ADF4371SMicrowave Wideband Synthesizer with Integrated VCO48-Terminal LGA-TBD Recommended for New Designs
resources/eval/developer-kits/space-based-satcom-ref-design.txt · Last modified: 14 Sep 2023 15:29 by Eamon Nash

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