Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 71 - 78 |
| Number of pages | 8 |
| Journal | International Journal of Infrared and Millimeter Waves |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2004 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- absorbes
- submillimeter waves
- specular scattering
- non-specular scattering
Cite this
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Characterization of submillimeter wave absorbers from 200-600 GHz. / Säily, Jussi; Räisänen, Antti V.
In: International Journal of Infrared and Millimeter Waves, Vol. 24, No. 1, 2004, p. 71 - 78.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Characterization of submillimeter wave absorbers from 200-600 GHz
AU - Säily, Jussi
AU - Räisänen, Antti V.
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
KW - absorbes
KW - submillimeter waves
KW - specular scattering
KW - non-specular scattering
U2 - 10.1023/B:IJIM.0000012764.61738.d7
DO - 10.1023/B:IJIM.0000012764.61738.d7
M3 - Article
VL - 24
SP - 71
EP - 78
JO - Journal of Infrared, Millimeter, and Terahertz Waves
JF - Journal of Infrared, Millimeter, and Terahertz Waves
SN - 1866-6892
IS - 1
ER -