Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Jonas Flygare"'
Autor:
Alice Pellegrini, Jonas Flygare, Isak P. Theron, Robert Lehmensiek, Adriaan Peens-Hough, Jamie Leech, Michael E. Jones, Angela C. Taylor, Robert E. J. Watkins, Lei Liu, Andre Hector, Biao Du, Yang Wu
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 1, Pp 428-437 (2021)
The Square Kilometre Array (SKA) project is an international effort to build the world's largest radio telescope, enabling science with unprecedented detail and survey speed.The project spans over a decade and is now at a mature stage, ready to enter
Externí odkaz:
https://doaj.org/article/532484ea60f64f8a8fae47a806ec9979
Autor:
Jonas Flygare, Jian Yang, Alexander W. Pollak, Robert E. J. Watkins, Fiona Hillier, Leif Helldner, Sven-Erik Ferm
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:2110-2125
Autor:
I. P. Theron, Jonas Flygare, Lei Liu, M. Jones, Robert Lehmensiek, Robert E. J. Watkins, Alice Pellegrini, Yang Wu, Biao Du, Jamie Leech, Andre Hector, Adriaan Peens-Hough, Angela C. Taylor
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 1, Pp 428-437 (2021)
The Square Kilometre Array (SKA) project is an international effort to build the world’s largest radio telescope, enabling science with unprecedented detail and survey speed. The project spans over a decade and is now at a mature stage, ready to en
Autor:
Alejandro Rivera-Lavado, Luis Enrique Garcia-Munoz, Jonas Flygare, Daniel Segovia-Vargas, Sergio Llorente-Romano, Miroslav Pantaleev, Luis E. Garcia-Castillo, Gabriel Santamaria Botello, José Antonio López Fernández, Jose Manuel Serna Puente, Kerlos Atia Abdalmalak
Publikováno v:
IEEE Transactions on Antennas and Propagation. 68:1995-2007
In order to meet the requirements of the new generation of radio telescopes, we have developed a new topology called DYQSA, which stands for DYson Quad-Spiral Array. The design exhibits dual circular polarization contrary to dual linear polarization
Autor:
Jonas Flygare, Miroslav Pantaleev
Publikováno v:
IEEE Transactions on Antennas and Propagation (0018-926X) vol.68(2020)
IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation
We present the design, manufacture, and measured performance of a dielectrically loaded quad-ridge flared horn (QRFH) feed for decade bandwidth radio astronomy application. The introduction of the dielectric load improves the QRFH beamwidth control i
Publikováno v:
Journal of Geodesy. 95
The accuracy of geodetic Very Long Baseline Interferometry (VLBI) is affected by water vapour in the atmosphere in terms of variations in the signal propagation delay at the different stations. This “wet” delay may be estimated directly from the
Autor:
Dongzi Li, Kiran A. Shila, Shrinivas R. Kulkarni, Liam Connor, Jonas Flygare, Gregg Hallinan, Wenbin Lu, Vikram Ravi, Sander Weinreb
We present the Galactic Radio Explorer (GReX), an all-sky monitor to probe the brightest bursts in the radio sky. Building on the success of STARE2, we will search for fast radio bursts (FRBs) emitted from Galactic magnetars as well as bursts from ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f10eb245857f30ff05920f64eb5c64ac
https://resolver.caltech.edu/CaltechAUTHORS:20210202-095231043
https://resolver.caltech.edu/CaltechAUTHORS:20210202-095231043
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
Autor:
Jonas Flygare, Jian Yang
Publikováno v:
15th European Conference on Antennas and Propagation, EuCAP 2021
This paper considers the potential of the dielectrically loaded Quad-ridge Flared Horn (QRFH) feed to provide continuous beyond-decade bandwidth in reflector telescopes for radio astronomy. An overview of the beam pattern evolution over frequency in
Autor:
Magnus Dahlgren, Leif Helldner, John Conway, Jian Yang, Bin Dong, Gary J. Hovey, Jin Cheng-jin, Jonas Flygare, Miroslav Pantaleev
Publikováno v:
2019 International Conference on Electromagnetics in Advanced Applications (ICEAA).
We present the Band B feed system over 4.6–24 GHz designed for the Square Kilometre Array (SKA) reflector for radio astronomy applications. The feed is a Quad-ridge Flared Horn (QRFH) with a customized shape based on spline-defined profiles to achi