Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon openaccess Digital beamforming antenna array with polarisation multiplexing for mobile high-speed satellite terminals at Ka-band

In this contribution, a planar antenna array terminal for mobile satellite communications at Ka-band is proposed. This Earth station on mobile platform uses separate transmit and receive apertures to obtain a flat design well suited for aeronautical applications. Digital beamforming is applied for fast beam scanning, tracking, and enhanced post-processing capabilities. The active antenna elements exhibit dual polarisation to comply with a four-colour spot beam arrangement commonly used by high-throughput satellites. Advanced frontend packaging concepts for a high integration density enable half wavelength element spacing. This prevents grating lobes and yields a large scanning range. A modular approach allows to flexibly adapt the array size to the application specific needs. An 8 × 8 receiver (Rx) array at 20 GHz and a 16 × 3 transmitter array at 30 GHz are demonstrated. The measured results obtained in conjunction with inter-element decoupling validate the approach. The principal suitability of the Rx array for the intended application is tested in a field experiment.

References

    1. 1)
      • 17. Geise, A., Jacob, A.F., Kuhlmann, K., et al: ‘Smart antenna terminals for broadband mobile satellite communications at Ka band’. Second Int. ITG Conf. on Antennas, 2007. INICA'07, March 2007, pp. 199204.
    2. 2)
    3. 3)
      • 3. Inmarsat plc. London, England, UK. Available at http://www.inmarsat.com.
    4. 4)
      • 12. Stark, A., Jacob, A.F.: ‘Complex loads for millimeter-wave digital phase shifter design’. 2011 European Microwave Integrated Circuits Conf. (EuMIC), October 2011, pp. 462465.
    5. 5)
      • 31. Geise, A., Jacob, A.F.: ‘A ring-coupled patch antenna for broadband polarization multiplex at Ka-band’. Third European Conf. on Antennas and Propagation, 2009. EuCAP 2009, March 2009, pp. 12601263.
    6. 6)
    7. 7)
      • 20. European Telecommunications Standards Institute, ETSI: ‘Satellite Earth stations and systems (SES); harmonized EN for satellite interactive terminals (SIT) and satellite user terminals (SUT) transmitting towards satellites in geostationary orbit in the 29.5 GHz to 30.0 GHz frequency bands (ETSI EN 301 459 V1.4.1)’ (European Telecommunications Standards Institute Std., 2007), June. Available at http://www.etsi.org/deliver/etsi_en/301400_301499/301459/01.04.01_60/en_301459v010401p.pdf.
    8. 8)
      • 1. I. International Telecommunication Union: ‘The world in 2013 ICT facts and figures’, Geneva, Switzerland, 2013. Available at http://www.itu.int/en/ITU-D/Statistics/Documents/facts/ICTFactsFigures2013-e.pdf.
    9. 9)
    10. 10)
      • 21. European Telecommunications Standards Institute, ETSI: ‘Satellite Earth stations and systems (SES); harmonized EN for Earth stations on mobile platforms (ESOMP) transmitting towards satellites in geostationary orbit in the 27.5 GHz to 30.0 GHz frequency bands covering the essential requirements of article 3.2 of the R&TTE directive (Draft ETSI EN 303 978 V1.1.0)’ (European Telecommunications Standards Institute Std., 2012). Available at https://www.etsi.org/deliver/etsi_en/303900_303999/303978/01.01.00_20/en_303978v010100c.pdf.
    11. 11)
      • 10. C2SAT communications AB. Stockholm, Sweden. Available at http://www.c2sat.com/.
    12. 12)
      • 11. EPAK GmbH. Dresden, Germany. Available at http://www.epak.de/.
    13. 13)
      • 18. Kuhlmann, K., Jacob, A.F.: ‘Active 30 GHz antenna array for digital beamforming and polarization multiplexing’. 2010 IEEE MTT-S Int. Microwave Symp. Digest (MTT), May 2010, pp. 12761279.
    14. 14)
      • 5. SES S.A., Société Européenne des Satellites. Betzdorf, Luxembourg. Available at http://www.ses.com.
    15. 15)
      • 9. Hotten, R.: ‘Budget long-haul flights ‘can work’’, BBC, June 2013. Available at http://www.bbc.co.uk/news/business-22840790.
    16. 16)
      • 16. Holzwarth, S., Jacob, A.F., Dreher, A., et al: ‘Active antenna arrays at Ka-band: status and outlook of the SANTANA project’. 2010 Proc. Fourth European Conf. on Antennas and Propagation (EuCAP), April 2010, pp. 15.
    17. 17)
    18. 18)
    19. 19)
      • 7. Tooway by SES S.A., Société Européenne des Satellites. Paris, France. Available at http://www.tooway.com/.
    20. 20)
      • 27. Holzwarth, S., Litschke, O., Simon, W., et al: ‘Highly integrated 8 × 8 antenna array demonstrator on LTCC with integrated RF circuitry and liquid cooling’. Fourth European Conf. on Antennas and Propagation, 2010. EuCAP 2010, April 2010, pp. 14.
    21. 21)
      • 6. Appel, K.I., Haken, W.: ‘Every planar map is four colorable’, in Contemporary Mathematics (American Mathematical Society, Providence, RI, USA, 1989), vol. 98.
    22. 22)
      • 19. Eutelsat Communications: ‘TOOWAY VSATs RF performance – type approval and characterization’, 2014. Available at http://www.eutelsat.com/files/contributed/support/pdf/RF_Characterisation_Tooway.pdf.
    23. 23)
      • 2. Iridium Communications Inc. Itasca, Illinois, USA. Available at http://www.iridium.com.
    24. 24)
    25. 25)
      • 22. I. International Telecommunication Union: ‘Reference radiation pattern of earth station antennas in the fixed-satellite service for use in coordination and interference assessment in the frequency range from 2 to 31 GHz (Recommendation ITU-R S.465-6)’ (International Telecommunication Union Std., 2010), January. Available at http://www.itu.int/dms_pubrec/itu-r/rec/s/r-rec-s.465-6-201001-i!!pdf-e.pdf.
    26. 26)
      • 4. Intelsat S.A. Luxembourg, Luxembourg. Available at http://www.intelsat.com.
    27. 27)
      • 26. Geise, A., Jacob, A., Kuhlmann, K., et al: ‘THE SANTANA PROJECT’. First CEAS European Air and Space Conf., 2007, Berlin, Germany, September 2007, pp. 14.
    28. 28)
      • 32. Geise, A., Jacob, A.F.: ‘Flex-rigid architecture for active millimeter-wave antenna arrays’. IEEE MTT-S Int. Microwave Symp. Digest, 2009. MTT'09, June 2009, pp. 809812.
    29. 29)
    30. 30)
      • 36. Kuhlmann, K., Rezer, K., Jacob, A.F.: ‘Far field measurement on Ka-band substrate-integrated waveguide antenna array with polarization multiplexing’. 2008 IEEE MTT-S Int. Microwave Symp. Digest, June 2008, pp. 13371340.
    31. 31)
    32. 32)
      • 25. European Telecommunications Standards Institute, ETSI: ‘Digital video broadcasting (DVB); second generation framing structure, channel coding and modulation systems for broadcasting, interactive services, news gathering and other broadband satellite applications (DVB-S2) (ETSI EN 302 307 V1.3.1)’ (European Telecommunications Standards Institute Std., 2013), March. Available at http://www.etsi.org/deliver/etsi_en/302300_302399/302307/01.03.01_60/en_302307v010301p.pdf.
    33. 33)
    34. 34)
      • 8. Moskvitch, K.: ‘In-flight Internet to take off?’, BBC, May 2012. Available at http://www.bbc.co.uk/news/technology-18021468.
    35. 35)
      • 30. Kuhlmann, K., Jalas, D., Jacob, A.F.: ‘Mutual coupling in Ka-band antenna array with polarization multiplexing’. Proc. 39th European Microwave Conf., Rome, Italy, September/October 2009, pp. 14.
    36. 36)
      • 35. Kuhlmann, K., Rezer, K., Jacob, A.F.: ‘Circularly polarized substrate-integrated waveguide antenna array at Ka-band’. 2008 German Microwave Conf. (GeMIC), March 2008, pp. 14.
    37. 37)
      • 37. Kuhlmann, K., Rohrdantz, B., Jacob, A.F.: ‘Performance assessment and optimization of an active Ka-band antenna array with polarization multiplexing’. Accepted at the European Microwave Conf., Rome, Italy, October 2014, pp. 14.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2015.0163
Loading

Related content

content/journals/10.1049/joe.2015.0163
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address