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Development of Wideband Antennas

  • H. UjiharaEmail author
  • K. Takefuji
  • M. Sekido
  • R. Ichikawa
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 149)

Abstract

Wideband antennas for VLBI have been under development in NICT Kashima and the status of the project was reported in the poster session. An aim of this wideband observing system is Time and Frequency Transfer, the comparison of atomic clocks separated by long distances of several hundred or thousand kilometers with VLBI, as reported in “Broadband VLBI System GALA-V” by M. Sekido et al. This report focuses on our wideband antenna systems.

Keywords

VGOS VLBI Wideband 

Notes

Acknowledgements

Development of wideband feeds were supported by the grant of Joint Development Research of National Astronomical Observatory of Japan (NAOJ) in 2013–2014.

References

  1. Kondo T, Takefuji K (2016) An algorithm of wideband bandwidth synthesis for geodetic VLBI. Radio Sci 51. https://doi.org/10.1002/2016RS006070
  2. Sekido M et al (2016) An overview of the Japanese GALA-V wideband VLBI system. In: Behrend D, Baver KD, Armstrong KL (eds) IVS 2016 general meeting proceedings new horizons with VGOS NASA/CP-2016-219016, pp 25–33Google Scholar
  3. Ujihara H (2017) Development of wideband feed for Kashima 34m antenna. Radio Sci 52. https://doi.org/10.1002/2016RS006071

Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • H. Ujihara
    • 1
    Email author
  • K. Takefuji
    • 1
  • M. Sekido
    • 1
  • R. Ichikawa
    • 2
  1. 1.National Institute of Information and Communications Technology (NICT)KashimaJapan
  2. 2.NICT/HeadquarterKoganeiJapan

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