Skip to main content
SpringerLink
Log in

Characterization of Submillimeter Wave Absorbers from 200–600 GHz

  • Published:
International Journal of Infrared and Millimeter Waves Aims and scope Submit manuscript

Abstract

This paper presents measurements of both specular and non-specular scattering from several submillimeter wave absorber materials designed for antenna testing and from low-cost carpet materials. The frequency range is 200–600 GHz in specular scattering, and 300–400 GHz in non-specular scattering measurements. The constructed bistatic test bench allows testing of the full continuous angular range of 0°–90°. The measurement results show large differences in performance of different materials. It is shown that reflectivities below −50 dB over limited angular ranges are possible with a correct alignment of the material. Also, low-cost carpet materials have lower than −15 dB reflectivities in most angles, and may be useful in non-critical parts of the antenna test range. The results can be used to optimise the absorber placement inside an antenna range, concerning both best performance and lowest cost.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

  1. P.R. Foster, D. Martin, C. Parini, A.V. Räisänen, J. Ala-Laurinaho, T. Hirvonen, A. Lehto, T. Sehm, J. Tuovinen, F. Jensen, K. Pontoppidan, Mmwave antenna testing techniques — Phase 2, 1996, MAAS report 304, ESTEC Contract No. 11641/95/NL/PB(SC), 224 p.

  2. J. Säily, A.V. Räisänen, Studies on specular and non-specular reflectivities of radar absorbing materials (RAM) at submillimetre wavelengths, Report S 258, Helsinki University of Technology Radio Laboratory Publications, February, 2003, 66 pages, available from http://lib.hut.fi/Diss/2003/isbn9512267012/article6.pdf

  3. P. Goy, M. Gross, S. Caroopen, Millimeter and submillimeter wave vector measurements with a network analyzer up to 1000 GHz. Basic principles and applications, Proceedings of the 4th International Conference on Millimeter and Submillimeter Waves and Applications, San Diego, CA, USA, July 20–23, 1998, 25 pages

  4. R.H. Giles, A.J. Gatesman, J. Fitzgerald, S. Fisk, J. Waldman, Tailoring artificial dielectric materials at terahertz frequencies, Proceedings of the 4th International Symposium on Space THz Technology, April 1993, Los Angeles, CA., USA

  5. T.O. Klaassen, M.C. Diez, J.H. Blok, C. Smorenburg, K.J. Wildeman, G. Jakob, Optical characterization of absorbing coatings for sub-millimeter radiation, Proceedings of the 12th International Symposium on Space THz Technology, Feb. 2001, San Diego, CA., USA, pp. 400–409

  6. R.H. Giles, J.C. Dickinson, J. Waldman, W.E. Nixon, Evaluation of submillimeter-wave anechoic materials at 500 GHz, Project Report, Submillimeter Technology Laboratory, University of Massachusetts Lowell, Feb. 1995, 20 pages

Download references

Author information

Authors and Affiliations

  1. MilliLab, SMARAD/Radio Laboratory, Helsinki University of Technology, P.O. Box 3000, FIN-02015, HUT, Finland

    Jussi Säily & Antti V. Räisänen

Authors
  1. Jussi Säily
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Antti V. Räisänen
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Säily, J., Räisänen, A.V. Characterization of Submillimeter Wave Absorbers from 200–600 GHz. International Journal of Infrared and Millimeter Waves 25, 71–88 (2004). https://doi.org/10.1023/B:IJIM.0000012764.61738.d7

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/B:IJIM.0000012764.61738.d7

Search

Navigation