Near-field measurements of a millimeter-wave reflectarray at 120 GHz

S. Mäkelä, A. Tamminen, J. Ala-Laurinaho, A.V. Räisänen, Päivi Koivisto, Jussi Säily, Janne Häkli, Pekka Rantakari, Reijo Tuovinen, Arttu Luukanen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled by 4-state micro-electro-mechanical (MEMS) phase shifters. Measurements of a static reflectarray preceding the MEMS-controlled one are done in order to characterize the behavior of individual antenna elements of the reflectarray. Measurement setup, probe selection and the effect of the directional coupler are described. Amplitude and phase patterns of the reflectarray are shown. Also the main characteristics of the static reflectarray under test are presented.
Original languageEnglish
Title of host publicationProceedings
Subtitle of host publication9th European Radar Conference, EuRAD 2012
PublisherInstitute of Electrical and Electronic Engineers IEEE
Pages481-484
ISBN (Print)978-1-4673-2471-7
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event9th European Radar Conference, EuRAD 2012 - Held as Part of European Microwave Week, EuMW 2012 - Amsterdam, Netherlands
Duration: 31 Oct 20122 Nov 2012

Conference

Conference9th European Radar Conference, EuRAD 2012 - Held as Part of European Microwave Week, EuMW 2012
Abbreviated titleEuRAD 2012
CountryNetherlands
CityAmsterdam
Period31/10/122/11/12

Fingerprint

Millimeter waves
MEMS
Directional couplers
Phase shifters
Microstrip antennas
Antennas

Keywords

  • antenna measurements
  • millimeter-Wave
  • near-field-probe measurements
  • feflectarray

Cite this

Mäkelä, S., Tamminen, A., Ala-Laurinaho, J., Räisänen, A. V., Koivisto, P., Säily, J., ... Luukanen, A. (2012). Near-field measurements of a millimeter-wave reflectarray at 120 GHz. In Proceedings: 9th European Radar Conference, EuRAD 2012 (pp. 481-484). Institute of Electrical and Electronic Engineers IEEE.
Mäkelä, S. ; Tamminen, A. ; Ala-Laurinaho, J. ; Räisänen, A.V. ; Koivisto, Päivi ; Säily, Jussi ; Häkli, Janne ; Rantakari, Pekka ; Tuovinen, Reijo ; Luukanen, Arttu. / Near-field measurements of a millimeter-wave reflectarray at 120 GHz. Proceedings: 9th European Radar Conference, EuRAD 2012. Institute of Electrical and Electronic Engineers IEEE, 2012. pp. 481-484
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title = "Near-field measurements of a millimeter-wave reflectarray at 120 GHz",
abstract = "In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled by 4-state micro-electro-mechanical (MEMS) phase shifters. Measurements of a static reflectarray preceding the MEMS-controlled one are done in order to characterize the behavior of individual antenna elements of the reflectarray. Measurement setup, probe selection and the effect of the directional coupler are described. Amplitude and phase patterns of the reflectarray are shown. Also the main characteristics of the static reflectarray under test are presented.",
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Mäkelä, S, Tamminen, A, Ala-Laurinaho, J, Räisänen, AV, Koivisto, P, Säily, J, Häkli, J, Rantakari, P, Tuovinen, R & Luukanen, A 2012, Near-field measurements of a millimeter-wave reflectarray at 120 GHz. in Proceedings: 9th European Radar Conference, EuRAD 2012. Institute of Electrical and Electronic Engineers IEEE, pp. 481-484, 9th European Radar Conference, EuRAD 2012 - Held as Part of European Microwave Week, EuMW 2012, Amsterdam, Netherlands, 31/10/12.

Near-field measurements of a millimeter-wave reflectarray at 120 GHz. / Mäkelä, S.; Tamminen, A.; Ala-Laurinaho, J.; Räisänen, A.V.; Koivisto, Päivi; Säily, Jussi; Häkli, Janne; Rantakari, Pekka; Tuovinen, Reijo; Luukanen, Arttu.

Proceedings: 9th European Radar Conference, EuRAD 2012. Institute of Electrical and Electronic Engineers IEEE, 2012. p. 481-484.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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T1 - Near-field measurements of a millimeter-wave reflectarray at 120 GHz

AU - Mäkelä, S.

AU - Tamminen, A.

AU - Ala-Laurinaho, J.

AU - Räisänen, A.V.

AU - Koivisto, Päivi

AU - Säily, Jussi

AU - Häkli, Janne

AU - Rantakari, Pekka

AU - Tuovinen, Reijo

AU - Luukanen, Arttu

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N2 - In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled by 4-state micro-electro-mechanical (MEMS) phase shifters. Measurements of a static reflectarray preceding the MEMS-controlled one are done in order to characterize the behavior of individual antenna elements of the reflectarray. Measurement setup, probe selection and the effect of the directional coupler are described. Amplitude and phase patterns of the reflectarray are shown. Also the main characteristics of the static reflectarray under test are presented.

AB - In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled by 4-state micro-electro-mechanical (MEMS) phase shifters. Measurements of a static reflectarray preceding the MEMS-controlled one are done in order to characterize the behavior of individual antenna elements of the reflectarray. Measurement setup, probe selection and the effect of the directional coupler are described. Amplitude and phase patterns of the reflectarray are shown. Also the main characteristics of the static reflectarray under test are presented.

KW - antenna measurements

KW - millimeter-Wave

KW - near-field-probe measurements

KW - feflectarray

M3 - Conference article in proceedings

SN - 978-1-4673-2471-7

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EP - 484

BT - Proceedings

PB - Institute of Electrical and Electronic Engineers IEEE

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Mäkelä S, Tamminen A, Ala-Laurinaho J, Räisänen AV, Koivisto P, Säily J et al. Near-field measurements of a millimeter-wave reflectarray at 120 GHz. In Proceedings: 9th European Radar Conference, EuRAD 2012. Institute of Electrical and Electronic Engineers IEEE. 2012. p. 481-484