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Thanks James: Phase III Antenna Validator Black-Box

Thanks James: Phase III Antenna Validator Black-Box. Tim Wendler Project 8 Yale 2019 Collaboration Meeting “ Scutigera coleoptrata ”. Superior Antennae Beamformer. I’ve been preparing for this day. LO = X,K,W Band. LO = X,K,W Band. Target. RF input. RF output. IF input. IF output.

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Thanks James: Phase III Antenna Validator Black-Box

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  1. Thanks James: Phase III Antenna Validator Black-Box Tim Wendler Project 8 Yale 2019 Collaboration Meeting “Scutigeracoleoptrata” Superior Antennae Beamformer

  2. I’ve been preparing for this day LO = X,K,W Band LO = X,K,W Band Target RF input RF output IF input IF output Bandwidth of chirp Me at China Lake Naval Base Analog Devices AD9914 Digital Direct Synthesizer 16-bit Phase Resolution 3.6GS/s 12-bit depth ADC

  3. I’ve been preparing for this day LO = X,K,W Band LO = X,K,W Band 40dB Spur Free Dynamic Range Target Max Hold RF input RF output Chirp Heading on upward IF input IF output SNR I’m expecting from Phase 4 Analog Devices AD9914 Digital Direct Synthesizer 16-bit Phase Resolution 3.6GS/s 12-bit depth ADC

  4. PWBR Gen. 2 Radar Transmitter January 2015 K&L 8ED30-7750/T1500-O/O 7.75GHz ctr. freq., 1.5GHz BW 7-8.5GHz LO1 Reject filter K&L 9ED20-9500/T2000-O/O 9.5GHz ctr. freq., 2GHz BW K&L 10IL40-1428/T3000-O/O{120} 1.428GHz cutoff freq. MFC 19242 3.6GHz ctr. freq., 1.2GHz BW DDS AD9914 8.5-10GHz K&L 5N45-2880/E127.7-O/O 2.88GHz ctr. freq., 210.6MHz BW K&L 7FV10-17000/T2000-O/O 17GHz ctr. freq., 2GHz BW 16-18GHz LO2 Frequency varies with desired transmission band 2.88GHz Serves as DDS clock and LO1 10MHz Rb Frequency Reference

  5. Antenna Validator LO with <120dBm/Hz @10kHz offset RF input RF output IF input IF output I Q I Q Keysight RSA Tektronix AWG5204 10MHz Rb Frequency Reference

  6. Antenna Validator LO with <120dBm/Hz @10kHz offset ? ? RF input RF output IF input IF output I Q I Q Keysight RSA Tektronix AWG5204 Extreme Control over Phase and Instantaneous Frequency 10MHz Rb Frequency Reference

  7. What’s inside the black box

  8. Scale of Turnstile Synth CRES Tx (4) 13mil diameter coaxial feeds De-embedder

  9. HFSS Results with which to compare

  10. Dynamic Polarization Caveat • Must Compare to radiative field in time-domain HFSS CRES Time-Avg Loop Antenna (Magnetic Dipole) CRES Tx

  11. Turnstile Produces Full Pattern Turnstile

  12. Turnstile Turnstile • Generates full field • Requires 4 single-ended signals • Ferrous Tubes enhance magnetic dipole radiative moment Time-Avg CRES 2-differential modes, in quadrature

  13. We will test other ideas too

  14. The EndThanks To: Luiz de Viveiros, Kurt Kidner, Vic Hart, Nick Buzinsky, Mark Jones, and MaurioGrando, James Nikkel, Penny Slocum, Hamish Robertson, Brent Vandevender, Rachel Perry, and Alec Lindman

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