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SKA-Japan Industry Forum [SKA-Japan Workshop 2010]

SKA-Japan Industry Forum [SKA-Japan Workshop 2010]. EMC & Microwave Systems November 05, 2010. Status of SKA Japanese Industry Forum. Sep. 2009 Kicked off the industry meeting call for NAOJ and Japan SKA consortium Dec. 2009 Started the SKAIJ by the up and coming companies

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SKA-Japan Industry Forum [SKA-Japan Workshop 2010]

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  1. SKA-Japan Industry Forum[SKA-Japan Workshop 2010] EMC & Microwave Systems November 05, 2010

  2. Statusof SKAJapanese Industry Forum • Sep. 2009 Kicked off the industry meeting call for NAOJ and Japan SKAconsortium • Dec. 2009 Started the SKAIJ by the up and coming companies • Jul. 2010 Came together 9 companies Began to discussion the Japanese contribution SKA Industry of Japan • Exchange latest technologies • Dispute the sub-system specifications with Japan SKA Consortium (Science Astronomers) • Experimental trial and evaluation of the system performance Square Kilometer Array Industry of Japan

  3. Relationship of SKAIJ SKA IEACSSEC SPDO NAOJ Information Requirements SKAIJ Exchange technical issues Collaboration / Partner Requirements Japan SKA consortium (Science astronomy) International engineering community Approach ［New Technologies］ SKAContribution Square Kilometer Array Industry of Japan

  4. Wideband HomodyneFrontend Desired engineering goal！ Wideband direct sampling digital receiver and feed KEYWORD ! • Key futures • Frequency coverage • SKA mid-band to SKAsemi-high-bandfeed • 3-20GHz decade band • Integrated receiver • Low power and cooling wide-band LNA • High frequency and wide band ADC • Ultra high speed gigabit data transmission • Digital beam forming • 100 instantaneous beams and 2 polarizations Square Kilometer Array Industry of Japan

  5. Development concept Low power consumption Wideband Instantaneous beam Multi-beams Wideband Homodyne Frontend Light weight Compact space Cost effective Maintainability Square Kilometer Array Industry of Japan

  6. Ultra high speed InP HBT 3bitsampler NTT Photonics Laboratory (3 mm × 3mm） Experimental Test 3bit A/D Converter W49N spectrum using traditional heterodyne receiver 20.480-24.576GHz (BW = 4.096GHz)Direct sampler (8.192Gbps) Proof of concept Homodyne receivers W49N spectrum using high speed direct-sampling Kawaguchi@SKA-JP WS 2008 Square Kilometer Array Industry of Japan 5

  7. Trial model of wideband feed Kouzuma@EAVNWS2010 Evaluation Tapered Slot Antenna Return Loss [dB] Square Kilometer Array Industry of Japan 6

  8. Trial model of A/D converter package Trial model from SMIED Test probe Compare new package with wire bonding RF characteristics Insertion Loss [dB] Time domain reflection Square Kilometer Array Industry of Japan 7

  9. Wideband HomodyneFrontend Potential Sub-system 2 polarizations WBSPF Square Kilometer Array Industry of Japan

  10. Wideband HomodyneFrontend Challenging Sub-system 2 polarizations WBPAF Square Kilometer Array Industry of Japan

  11. Focus on Challenging Wideband radiator (Feed) Carry out decade band Compact space Integrated Receiver Analog part Indium-Phosphorous LNA with cryogenic cooling Low power consumption, light weight, compact space Applicative existing cryogenic cooling technologies Digital part (Direct digital sampling) High speed wideband A/D converter Improvement analog input transmission in the A/D converter Ultra high speed data output Extreme volume digital beam forming Large volume of digital data from feeds Sales products Square Kilometer Array Industry of Japan

  12. New developments and future directions SKA semi-high-band feeds  Phased array 3-20 GHz 100 instantaneous beams x 2 polarizations LNA with Cryogenic cooling Low power consumption Cryogenic cooling Whole analog section or individual LNA Wideband A/Dconverter Analog frequency : ~20 GHz Sampling rate : ~16 Gbps / 3 bits Wideband HomodyneFrontend Square Kilometer Array Industry of Japan

  13. Timeline 2008-12 Telescope system design and cost 2012 Site selection 2013-15 Detail design and pre-construction phase 2016 Advanced instrumentation program decision 2016-19 Phase 1 construction Our target time frame of new developments Square Kilometer Array Industry of Japan

  14. SKAIJ (Engineering) Square Kilometer Array Industry of Japan

  15. SKAIJ future activity Create our homepage Keep up-to-date with the development status Deliver latest information Undertake information gathering Come into international events to get development status and new technologies Come out with the development status and test results Square Kilometer Array Industry of Japan 14

  16. Conclusion • Specification • Frequency coverage • RF band : 3 – 20 GHz • Bandwidth : 8 GHz (16 Gbps nyquist) • Phased array feed per antenna • Number of beams : 100 instantaneous beams • Polarization : Horizontal and Vertical • Low noise amplifiers • Amplifier noise temperature : Tsys = 30K • Cooling temperature : 20K cooling • Number of LNAs : 200 ea. per antenna Square Kilometer Array Industry of Japan

  17. Contact SKA Industry Japan Toshiki Kumazawa Toyo Corporation TEL : 03-3245-1244 FAX : 03-5205-2030 E-mail : kumazawa@toyo.co.jp Thank you. EMC & Microwave Systems 1-6, Yaesu 1-chome, Chuo-ku, Tokyo, 103-8284 Japan TEL:03-3245-1244 / FAX:03-5205-2030 E-mail:microwave@toyo.co.jp http://www.toyo.co.jp/microwave/ http://www.toyo.co.jp/cal-lab/en/

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