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Development of Wideband Antennas

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International Symposium on Advancing Geodesy in a Changing World

Part of the book series: International Association of Geodesy Symposia ((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.

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References

  • Kondo T, Takefuji K (2016) An algorithm of wideband bandwidth synthesis for geodetic VLBI. Radio Sci 51. https://doi.org/10.1002/2016RS006070

  • 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 25–33

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  • Ujihara H (2017) Development of wideband feed for Kashima 34m antenna. Radio Sci 52. https://doi.org/10.1002/2016RS006071

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Acknowledgements

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

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Authors and Affiliations

  1. National Institute of Information and Communications Technology (NICT), Hirai, Kashima, Japan

    H. Ujihara, K. Takefuji & M. Sekido

  2. NICT/Headquarter, Nukui-Kitamachi, Koganei, Japan

    R. Ichikawa

Authors
  1. H. Ujihara
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  2. K. Takefuji
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  3. M. Sekido
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  4. R. Ichikawa
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Corresponding author

Correspondence to H. Ujihara .

Editor information

Editors and Affiliations

  1. Thomas A. Vogel Endowed Chair for Geology of the Solid Earth, Department of Earth and Environmental Sciences, Michigan State University, East Lansing, MI, USA

    Jeffrey T. Freymueller

  2. Deutsches Geodätisches Forschungsinstitut, Technische Universität München, Munich, Germany

    Laura Sánchez

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© 2018 Springer Nature Switzerland AG

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Ujihara, H., Takefuji, K., Sekido, M., Ichikawa, R. (2018). Development of Wideband Antennas. In: Freymueller, J., Sánchez, L. (eds) International Symposium on Advancing Geodesy in a Changing World. International Association of Geodesy Symposia, vol 149. Springer, Cham. https://doi.org/10.1007/1345_2018_41

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