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Millimeter-wave Receiver Optics for Korean VLBI Network

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Abstract

Over the past several years the millimeter wave VLBI (Very Long Baseline Interferometry) observations have been intensively performed. However phase fluctuation due to troposphere is one of the key issue in terms of degradation of sensitivity and limits imaging capability in millimeter wave VLBI observations. We describe the details of designed receiver optics for the Korean VLBI Network to calibrate tropospheric phase fluctuation for the millimeter wave VLBI observation. These optics guide beams from one position on sky to 22, 43, 86, and 129 GHz-band receivers simultaneously. Several topics, such as the design principles of imaging and power loss due to phase errors on common ellipsoidal mirrors are discussed.

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References

  1. E. Middelberg et al., VLBI observations of weak sources using fast frequency switching, Astron. Astrophys. 433, 897–909 (2005)

    Article  ADS  Google Scholar 

  2. Y. Asaki et al., Phase compensation experiments with the paired antennas method, 2, Millimeter-wave fringe correction using centimeter-wave reference, Radio Sci. 33(5), 1297–1318 (1998)

    Article  ADS  Google Scholar 

  3. P. F. Goldsmith, Quasioptical Systems: Gaussian Beam Quasioptical Propagation and Applications. (IEEE Press, New York, 1998)

    Google Scholar 

  4. T. S. Chu, An imaging beam waveguide feed, IEEE Trans. Antennas Propag. 31(4), 614–619 (1983)

    Article  ADS  Google Scholar 

  5. J. A. Murphy, Distortion of a simple gaussian beam on reflection from off-axis ellipsoidal mirrors, Int. J. Infrared Millim. Waves 8(9), 1165–1187 (1987)

    Article  ADS  Google Scholar 

  6. Designed and manufactured by QMC Instruments, UK; filters designed by P. Ade and built by C. Tucker

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Authors and Affiliations

  1. Korean VLBI Network, Korea Astronomy and Space Science Institute, P.O. Box 88, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea

    Seog-Tae Han, Jiman Kang, Do-Heung Je, Moon-Hee Chung, Seog-Oh Wi & Tetsuo Sasao

  2. Department of Physics and Astronomy, Seoul National University, Seoul, Korea

    Jung-Won Lee & Jiman Kang

  3. Department of Space Survey and Information Technology, Ajou University, Suwon, Korea

    Tetsuo Sasao

  4. Department of Physics and Astronomy, University of St. Andrews, Fife, Scotland

    Richard Wylde

  5. Thomas Keating Ltd., West Sussex, UK

    Richard Wylde

Authors
  1. Seog-Tae Han
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  2. Jung-Won Lee
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  3. Jiman Kang
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  4. Do-Heung Je
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  5. Moon-Hee Chung
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  6. Seog-Oh Wi
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  7. Tetsuo Sasao
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  8. Richard Wylde
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Corresponding author

Correspondence to Seog-Tae Han.

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Han, ST., Lee, JW., Kang, J. et al. Millimeter-wave Receiver Optics for Korean VLBI Network. Int J Infrared Milli Waves 29, 69–78 (2008). https://doi.org/10.1007/s10762-007-9296-7

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  • DOI: https://doi.org/10.1007/s10762-007-9296-7

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