Zobrazeno 1 - 10 of 380 pro vyhledávání: '"U, Johannsen"'
1
Akademický článek
Particularities of pyroelectric detectors in absolute measurements of chopped radiation shown for the example of a spectral responsivity calibration in the near- and mid-infrared spectral range at two primary radiometric standards
Autor: T. Pohl, P. Meindl, J. Hollandt, U. Johannsen, L. Werner
Publikováno v: Journal of Sensors and Sensor Systems, Vol 11, Pp 61-73 (2022)
The Physikalisch-Technische Bundesanstalt (PTB) expanded its capabilities for the calibration of the spectral responsivity s(λ) in the spectral range between 1.5 µm and 14 µm, traceable to the International System of Units (SI), with pyroelectric
Externí odkaz: https://doaj.org/article/29648a877a1e46c587fdce1d29e5c2e2
Zobrazit plný text záznamu
3
Akademický článek
Absolute calibration of the spectral responsivity of thermal detectors in the near-infrared (NIR) and mid-infrared (MIR) regions by using blackbody radiation
Autor: T. Pohl, P. Meindl, L. Werner, U. Johannsen, D. Taubert, C. Monte, J. Hollandt
Publikováno v: Journal of Sensors and Sensor Systems, Vol 10, Pp 109-119 (2021)
The Physikalisch-Technische Bundesanstalt (PTB) has set up an additional measurement approach for the absolute calibration of the spectral responsivity of detectors in the near-infrared (NIR) and mid-infrared (MIR) spectral range. This alternative me
Externí odkaz: https://doaj.org/article/af558257fda944768276f0bc07468eb8
Zobrazit plný text záznamu
4
Akademický článek
Measurement of the absolute spectral responsivity in the mid-infrared based on the cryogenic electrical substitution radiometer and an optimized thermopile detector
Autor: T. Pohl, P. Meindl, U. Johannsen, D. Taubert, L. Werner
Publikováno v: Journal of Sensors and Sensor Systems, Vol 8, Pp 195-205 (2019)
The Physikalisch-Technische Bundesanstalt (PTB) expanded its capabilities of the absolute measurement of radiant power to the spectral range of the mid-infrared (MIR) by implementing additional MIR laser radiation sources at one of the PTB's cryogeni
Externí odkaz: https://doaj.org/article/595f81a16b74457bbed4448dab136dda
Zobrazit plný text záznamu
6
Launching the First Massive Open Online Course (MOOC) on Microwave Engineering and Antennas
Autor: A. B. Smolders, D. M. W. Leenaerts, K. A. P. Hastenberg, E. Den Boer, U. Johannsen
Publikováno v: 2021 51st European Microwave Conference, EuMC 2021, 5-8
STARTPAGE=5;ENDPAGE=8;TITLE=2021 51st European Microwave Conference, EuMC 2021
In this paper we describe the motivation, design, and implementation details of a new massive open online course (MOOC) that provides a master-level introduction into both microwave engineering and antennas. This unique free-of-charge course provides
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55c1ea4433a99480825fc1d8428ae974
https://research.tue.nl/nl/publications/20723534-b480-474c-8ec2-7ad39dd0f19c
Zobrazit plný text záznamu
7
Characterization of the Dielectric Properties of Commercially Available Low-loss UV-curable Resins from 60 GHz to 90 GHz
Autor: P. Escobari Vargas, E. Meyer, F. Chiappini, A. Garufo, S. Monni, U. Johannsen, A. C. F. Reniers
Publikováno v: 2022 52nd European Microwave Conference (EuMC), 278-281
STARTPAGE=278;ENDPAGE=281;TITLE=2022 52nd European Microwave Conference (EuMC)
In this paper, two important dielectric properties, the relative permittivity and the loss tangent of a new commercially available UV-curable SLA resin sample are determined. The characterization of the dielectric material is performed in the millime
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d6394fcd8b5aaf78897faa8a4e7c5f2
https://research.tue.nl/nl/publications/d89ccba4-d326-4dde-beaf-2b11e430363c
Zobrazit plný text záznamu
8
Package Thickness Investigation of the U-Slot Patch Antenna for Beyond-5G Antenna-in-Package Applications
Autor: M.M.A. Versluis, R. Schulpen, R.X.F. Bude, A.B. Smolders, U. Johannsen
Publikováno v: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022-Proceedings, 1046-1047
STARTPAGE=1046;ENDPAGE=1047;TITLE=2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2022-Proceedings
The U-slot patch antenna is explored as broadband antenna solution for a multi-layer interconnect antenna-in-package (AiP) technology for beyond-5G and 6G phased array applications. An initial design method is used to investigate the bandwidth respon
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66a6df773fd3dc6f846449e7a7276fef
https://research.tue.nl/nl/publications/4750c693-bc50-4d4b-9784-b756de6971b0
Zobrazit plný text záznamu
10
E-band Point-to-Multipoint Antennas Based On Wide-Scan Focal Plane Arrays
Autor: R.X.F. Bude, A. Elsakka, M.M.A. Versluis, U. Johannsen, A.B. Smolders
Publikováno v: 2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021-Proceedings, 1597-1598
STARTPAGE=1597;ENDPAGE=1598;TITLE=2021 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, APS/URSI 2021-Proceedings
An antenna-system concept is explored where a wide-scan focal plane array antenna is used for point-to-multipoint communications at E-band. As a preliminary study the directivity is investigated for a beam scanning to boresight for several array size
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6e11240994c7f16acc6f207251dc193
https://doi.org/10.1109/aps/ursi47566.2021.9704073
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje