Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Sjoerd Bosma"'
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 3, Pp 419-428 (2022)
We report on the first demonstration of dynamic beam steering using a scanning lens phased array. A scanning lens phased array relies on a combination of mechanical and electrical phase shifting to dynamically steer a high-gain beam beyond the gratin
Externí odkaz:
https://doaj.org/article/9d9973d16023470c930e839aae2b6ea6
Publikováno v:
IEEE Transactions on Antennas and Propagation, 70(2)
In this work, we show that the near field of leaky-wave resonant antennas (LWAs) radiating into a dense medium can be locally represented as a spherical wave in a certain solid angle around broadside using an accurate definition of the phase center.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79b393cc3a4e17f6838a9f9da64f0630
https://doi.org/10.1109/tap.2021.3137238
https://doi.org/10.1109/tap.2021.3137238
Autor:
Kazuyuki Fujita, Jun Maekawa, Akira Kouchi, Yuki Yoshimura, Shun Ishii, Sjoerd Bosma, Ozan Yurduseven, Kah Wuy Chin, Akira Endo, Koyo Suzuki, Shin'ichiro Asayama, Kenichi Karatsu, Yasunori Fujii, Akio Taniguchi, Tetsutaro Ueda, Tai Oshima, Kazushige Ohtawara, Pieter J. de Visser, Masato Naruse, Tom J. L. C. Bakx, Nuria Llombart, Vignesh Murugesan, Paul van der Werf, Takashi Tsukagoshi, Tsuyoshi Ishida, Jochem J. A. Baselmans, Ryohei Kawabe, Kotaro Kohno, Robert Huiting, Yoichi Tamura, Soh Ikarashi, Junya Suzuki, Juan Bueno, Shunichi Nakatsubo, Tatsuya Takekoshi, Alejandro Pascual Laguna, Teun M. Klapwijk, Stephen J. C. Yates, David J. Thoen
Publikováno v:
Journal of Low Temperature Physics
Journal of Low Temperature Physics, 199, 231-239
Journal of Low Temperature Physics, 199(1-2)
Journal of Low Temperature Physics, 199, 231-239
Journal of Low Temperature Physics, 199(1-2)
We are developing an ultra-wideband spectroscopic instrument, DESHIMA (DEep Spectroscopic HIgh-redshift MApper), based on the technologies of an on-chip filter-bank and Microwave Kinetic Inductance Detector (MKID) to investigate dusty star-burst gala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30c1ebb4d224c3734d251c2694dc5f40
https://doi.org/10.1007/s10909-020-02338-0
https://doi.org/10.1007/s10909-020-02338-0
Publikováno v:
IEEE Antennas and Wireless Propagation Letters, 21(8)
We present a resonant leaky-wave lens antenna, fed by a circular waveguide with annular corrugations in the ground plane. The proposed leaky-wave feed reduces the impact of the spurious TM0 leaky-wave mode in all planes over a wide bandwidth while re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efac15ac8b7e532d8a90171d7342e912
http://resolver.tudelft.nl/uuid:db8c2e32-c7d0-42b4-8f07-c3d18c6f8ad3
http://resolver.tudelft.nl/uuid:db8c2e32-c7d0-42b4-8f07-c3d18c6f8ad3
Publikováno v:
IEEE Transactions on Terahertz Science and Technology
IEEE Transactions on Terahertz Science and Technology, 11(2)
IEEE Transactions on Terahertz Science and Technology, 11(2)
In this article, we propose a hybrid electromechanical scanning lens antenna array architecture suitable for the steering of highly directive beams at submillimeter wavelengths with field-of-views (FoV) of ±25°. The concept relies on combining elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75135f5e9609f0349a26dba6f5221eaf
Publikováno v:
2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021: Proceedings
2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
In this paper, we will present a novel quasi-optical power distribution technique that will allow achieving an efficient multi-pixel LO power distribution for submillimeter-wave instruments. This method can distribute the power from one antenna to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f42ca8cda72fd42d2ea61a1893b21de
http://resolver.tudelft.nl/uuid:b9b0ea14-ea34-40e2-9645-7bcd4545d6d6
http://resolver.tudelft.nl/uuid:b9b0ea14-ea34-40e2-9645-7bcd4545d6d6
Autor:
Kah Wuy Chin, Sebastian Hähnle, Masato Naruse, Tsuyoshi Ishida, Vignesh Murugesan, Jun Maekawa, Jochem J. A. Baselmans, Esmee Huijten, J. Bueno, Ozan Yurduseven, Yuki Yoshimura, Akira Endo, Junya Suzuki, Shun Ishii, Shunichi Nakatsubo, T. Bakx, David J. Thoen, Koyo Suzuki, T. Oshima, Tetsutaro Ueda, Teun M. Klapwijk, Yasunori Fujii, Stephen J. C. Yates, Nuria Llombart, Alejandro Pascual Laguna, Akira Kouchi, S. Ikarashi, Paul van der Werf, Takashi Tsukagoshi, Shin'ichiro Asayama, Tatsuya Takekoshi, Kazuyuki Fujita, Ryohei Kawabe, Yoichi Tamura, Bruno T. Buijtendorp, Shahab Oddin Dabironezare, Akio Taniguchi, K. Karatsu, Pieter J. de Visser, Kazushige Ohtawara, Kotaro Kohno, Robert Huiting, Sjoerd Bosma
Publikováno v:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X.
The integrated superconducting spectrometer (ISS) enables ultra-wideband, large field-of-view integral-field-spectrometer designs for mm-submm wave astronomy. DESHIMA 2.0 is a single-pixel ISS spectrometer for the ASTE 10-m telescope, designed to obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41c54f95b929f3939e800c975bb8a83f
https://doi.org/10.1117/12.2560669
https://doi.org/10.1117/12.2560669
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz): Proceedings
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
In this contribution, we present the progress towards developing two submillimeter-wave prototypes of a scanning lens phased array. This recently-proposed array architecture can achieve high-gain, wide-scan radiation patterns with low sidelobes and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3605cad2665c9283958f963310af607
https://doi.org/10.1109/irmmw-thz46771.2020.9370439
https://doi.org/10.1109/irmmw-thz46771.2020.9370439
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
IRMMW-THz 2019-44th International Conference on Infrared, Millimeter, and Terahertz Waves, 2019-September
IRMMW-THz 2019-44th International Conference on Infrared, Millimeter, and Terahertz Waves, 2019-September
In this contribution, we propose an antenna for a dual-band focal plane array (FPA) heterodyne receiver at 210-240 GHz and 500-580 GHz to perform cometary observations. The proposed antenna is composed of a fused silica lens fed by a leaky wave waveg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb6dfd37e938733c59330ff0cd7c3c0f
Publikováno v:
IRMMW-THz 2019-44th International Conference on Infrared, Millimeter, and Terahertz Waves, 2019-September
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
In this contribution, we propose a hybrid electromechanical scanning antenna array architecture suitable for highly directive phased arrays at submillimeter wavelengths with field-of-views (FoV) of+/-30 degrees. The concept relies on combining electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc3d9b1a24875a58e1b938da7a7a6cf5
http://resolver.tudelft.nl/uuid:67221b00-784d-4574-82d4-0c4b158ad8d2
http://resolver.tudelft.nl/uuid:67221b00-784d-4574-82d4-0c4b158ad8d2