Phase-Hologram-Based Compact RCS Test Range at 310 GHz for Scale Models

Anne Lönnqvist, Juha Mallat, Antti V. Räisänen

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

A compact radar cross section (RCS) test range based on a phase hologram has been developed for scale-model measurements. The phase hologram converts the feed-horn radiation to a plane wave needed for RCS determination. The measurements are performed at 310 GHz using continuous-wave operation. A monostatic configuration is realized using a dielectric slab as a directional coupler. The main advantage of a scale-model RCS range is that the dimensions of radar targets are scaled down in proportion to the wavelength. Therefore, RCS data of originally large objects can be measured indoors in a controlled environment. Test objects such as metal cylinders and simplified targets have been measured. The feasibility of the phase-hologram RCS range has been verified. The operation and measurement results of the monostatic measurement range are reported here. A comparison with simulated results is also included.

Original languageEnglish
Pages (from-to)2391-2397
Number of pages7
JournalIEEE Transactions on Microwave Theory and Techniques
Volume54
Issue number6
DOIs
Publication statusPublished - 6 Jun 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

test ranges
radar cross sections
Radar cross section
scale models
Holograms
radar targets
Directional couplers
directional couplers
rangefinding
continuous radiation
proportion
slabs
Radar
plane waves
Radiation
Wavelength
radiation
configurations
Metals
wavelengths

Keywords

  • Compact range
  • hologram
  • quiet zone
  • radar cross section (RCS)
  • scale-model measurements

Cite this

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abstract = "A compact radar cross section (RCS) test range based on a phase hologram has been developed for scale-model measurements. The phase hologram converts the feed-horn radiation to a plane wave needed for RCS determination. The measurements are performed at 310 GHz using continuous-wave operation. A monostatic configuration is realized using a dielectric slab as a directional coupler. The main advantage of a scale-model RCS range is that the dimensions of radar targets are scaled down in proportion to the wavelength. Therefore, RCS data of originally large objects can be measured indoors in a controlled environment. Test objects such as metal cylinders and simplified targets have been measured. The feasibility of the phase-hologram RCS range has been verified. The operation and measurement results of the monostatic measurement range are reported here. A comparison with simulated results is also included.",
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Phase-Hologram-Based Compact RCS Test Range at 310 GHz for Scale Models. / Lönnqvist, Anne; Mallat, Juha; Räisänen, Antti V.

In: IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 6, 06.06.2006, p. 2391-2397.

Research output: Contribution to journalArticleScientificpeer-review

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