Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

A. Tamminen; Anne Lönnqvist; J. Mallat; A. V. Räisänen

doi:10.1109/TMTT.2008.916881

Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

A. Tamminen
, Anne Lönnqvist
, J. Mallat
, A. V. Räisänen

Helsinki University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

13 Citations (Scopus)

Abstract

Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.

Original language	English
Pages (from-to)	632 - 637
Number of pages	6
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	56
Issue number	3
DOIs	https://doi.org/10.1109/TMTT.2008.916881
Publication status	Published - 2008
MoE publication type	A1 Journal article-refereed

Keywords

Antenna test range
Monostatic reflectivity
Radar absorbing materials (RAMs)
Radar cross section (RCS)

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10.1109/TMTT.2008.916881

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title = "Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz",

abstract = "Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.",

keywords = "Antenna test range, Monostatic reflectivity, Radar absorbing materials (RAMs), Radar cross section (RCS)",

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year = "2008",

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language = "English",

volume = "56",

pages = "632 -- 637",

journal = "IEEE Transactions on Microwave Theory and Techniques",

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T1 - Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

AU - Tamminen, A.

AU - Lönnqvist, Anne

AU - Mallat, J.

AU - Räisänen, A. V.

PY - 2008

Y1 - 2008

N2 - Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.

AB - Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and the reflectivity level of those was found to be sufficiently low (from -50 to -60 dB) for use in antenna test ranges. Results agree with earlier studies and indicate the applicability of the RCS method in reflectivity measurements also at 650 GHz.

KW - Antenna test range

KW - Monostatic reflectivity

KW - Radar absorbing materials (RAMs)

KW - Radar cross section (RCS)

U2 - 10.1109/TMTT.2008.916881

DO - 10.1109/TMTT.2008.916881

M3 - Article

SN - 0018-9480

VL - 56

SP - 632

EP - 637

JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

IS - 3

ER -

Monostatic reflectivity and transmittance of radar absorbing materials at 650 GHz

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Keywords

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