Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Bhushan Billade"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 67:585-590
In this communication, we present a new optimization and realization of a quadruple-ridge flared horn (QRFH) as a feed for reflector antennas of the square kilometer array (SKA) project. The QRFH has been numerically optimized by spline-defined profi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f57d16158ca9911f091e7a4de4db674
https://doi.org/10.1109/tap.2018.2874673
https://doi.org/10.1109/tap.2018.2874673
Autor:
Leif Helldner, Jian Yang, Miroslav Pantaleev, Marianna Ivashina, Bhushan Billade, Tobia Carozzi, Magnus Dahlgren
Publikováno v:
IEEE Transactions on Antennas and Propagation. 63:5955-5960
We present significant improvements to the circular Eleven feed technology for a dual-reflector system operating over 0.35–1.05 GHz as a backup for the square kilometer array (SKA) project Band 1. In this work, the number of the feed ports is reduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18431053ffa32aa73ea3e70400fdbfc4
https://doi.org/10.1109/tap.2015.2490242
https://doi.org/10.1109/tap.2015.2490242
Publikováno v:
2018 IEEE Conference on Antenna Measurements & Applications (CAMA).
The design and simulation of a mm-wave radar transponder is presented. The transponder is designed to oper- ate with FMCW-based radars, commonly found in automotive and other civil applications. In particular, the device is designed such that it is v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0499990db1d82ba3ed85f1f63996548
https://doi.org/10.1109/cama.2018.8530595
https://doi.org/10.1109/cama.2018.8530595
Autor:
Bruce Veidt, Richard Hellyer, Bhushan Billade, Mohammad Tariqul Islam, Jens Dahlstrom, G. J. Hovey, Miroslav Pantaleev, Rob Messing, Bo Wästberg, Gordon Lacy, Magnus Dahlgren, Jonas Fly Gare
Publikováno v:
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
We present measured on-dish beam patterns for a room temperature spline-profile quad-ridge flared horn (QRFH) feed designed for the Square Kilometre Array (SKA) Band 1 covering 350–1050 MHz. The feed and LNA package has been mounted on the offset G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47fc7950b6f29a1944d00ae0ce3e49f1
https://doi.org/10.1109/apusncursinrsm.2018.8608627
https://doi.org/10.1109/apusncursinrsm.2018.8608627
Publikováno v:
12th European Conference on Antennas and Propagation (EuCAP 2018).
Quadruple-ridge Flared Horns (QRFHs) have been showing qualified performance as the feed antennas for the reflecting systems in the Square Kilometre Array (SKA). However, due to the offset optics of the SKA reflecting system, identical illuminations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfc81a969a4cc8e5991cd40c5bc6851d
https://doi.org/10.1049/cp.2018.0819
https://doi.org/10.1049/cp.2018.0819
Autor:
Magnus Strandberg, A. Koops, Michael Olberg, J. Barkhof, Igor Lapkin, Pavel A. Yagoubov, Parisa Yadranjee Aghdam, John Conway, T. Klein, Sascha Krause, Alexey Pavolotsky, W. Boland, Andrey M. Baryshev, Per Bergman, Erik Sundin, E. De Beck, J. P. Pérez-Beaupuits, Hans Olofsson, Ronald Hesper, M. E. Bekema, K. Torstensson, Bhushan Billade, F. M. Montenegro-Montes, C. De Breuck, Vincent Desmaris, S. Shafiee, J. Adema, Sven-Erik Ferm, Victor Belitsky, K. Immer, Hawal Rashid, Mathias Fredrixon, Denis Meledin, Andrey B. Ermakov
Publikováno v:
Astronomy & astrophysics, 612:23. EDP Sciences
Context: We describe the new SEPIA (Swedish-ESO PI Instrument for APEX) receiver, which was designed and built by the Group for Advanced Receiver Development (GARD), at Onsala Space Observatory (OSO) in collaboration with ESO. It was installed and co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ba618a16a3e608a95bfc49b991ae94e
http://arxiv.org/abs/1712.07396
http://arxiv.org/abs/1712.07396
Publikováno v:
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
A dual polarized Quad-Ridge Flared Horn (QRFH) feed for receiver systems is proposed and presented. The cryogenic 1.6–5.2 GHz feed system design is considered with emphasis on its application in future wideband radio telescope systems. A great deal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cee13a4f0f9d6b71e5ff05de845c93c
https://doi.org/10.23919/ursigass.2017.8105063
https://doi.org/10.23919/ursigass.2017.8105063
Publikováno v:
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
This paper presents design of a novel coupler for the injection of calibration signal into the RF path of the SKA Band 1 quad-ridged flared horn, covering frequencies from 350–1050 MHz. The coupler is integrated in the feed horn and provides a coup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::700abc461df6c9257f81a75c2829decd
https://doi.org/10.1109/apusncursinrsm.2017.8072431
https://doi.org/10.1109/apusncursinrsm.2017.8072431
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 4:254-259
We report the first experimental off-chip detection of frequency multiplication in a distributed array of superconductor-insulator-superconductor (SIS) junctions. A test device consisting of series array of 68 Nb/Al-AlOx/Nb tunnel junctions was desig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c3374d8afce54799ae1c1f4200827f
https://doi.org/10.1109/tthz.2014.2304138
https://doi.org/10.1109/tthz.2014.2304138
Autor:
Mathias Fredrixon, John Conway, Denis Meledin, E. De Beck, Michael Olberg, Sascha Krause, Hawal Rashid, Alexey Pavolotsky, K. Immer, C. De Breuck, S. Shafiee, Erik Sundin, J. Adema, Bhushan Billade, Andrey M. Baryshev, A. Koops, Per Bergman, W. Boland, J. Barkhof, Parisa Yadranjee Aghdam, J. P. Pérez-Beaupuits, Victor Belitsky, Andrey B. Ermakov, Ronald Hesper, M. E. Bekema, Sven-Erik Ferm, T. Klein, Magnus Strandberg, F. M. Montenegro-Montes, Hans Olofsson, Igor Lapkin, Pavel A. Yagoubov, K. Torstensson, Vincent Desmaris
Publikováno v:
Astronomy & Astrophysics. 620:C2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5e2b9562dbc4d618b199b252966d82f
https://doi.org/10.1051/0004-6361/201731458e
https://doi.org/10.1051/0004-6361/201731458e