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Alireza Seyfollahi
at NRC Herzberg Astronomy and Astrophysics Research Ctr.
SPIE Involvement:
Author
Publications (4)
SPIE Journal Paper | 28 September 2022
Wideband SiGe down-converter for millimeter-wave radio astronomy applications
Alireza Seyfollahi, Nianhua Jiang, Lewis B. Knee, Jens Bornemann
JATIS, Vol. 8, Issue 03, 036004, (September 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.036004
KEYWORDS: Receivers, Radio astronomy, Metals, Transformers, Amplifiers, Transistors, Interference (communication), Solids, Signal attenuation, Optical isolators
Proceedings Article | 31 August 2022 Paper
Design and analysis of the NRC Q-band receiver for ngVLA Band-5
S. Salem Hesari, D. Henke, V. Reshetov, B. Veidt, A. Seyfollahi, F. Jiang, L. Knee
Proceedings Volume 12190, 121900L (2022) https://doi.org/10.1117/12.2627870
KEYWORDS: Receivers, Optical filtering, Waveguides, Cryogenics, Antennas, Calibration, Polarization, Amplifiers, Optical analysis, Interference (communication)
Proceedings Article | 31 August 2022 Paper
Octave bandwidth receiver technology for radio and millimetre-wave telescopes
D. Henke, F. Jiang, S. Salem Hesari, A. Seyfollahi, B. Veidt, L. Knee
Proceedings Volume 12190, 121901Y (2022) https://doi.org/10.1117/12.2630537
KEYWORDS: Waveguides, Receivers, Telescopes, Radio astronomy, Astronomical telescopes
Proceedings Article | 13 December 2020 Poster + Presentation + Paper
Q-band receiver system design for the Canadian DVA-2 radio telescope
S. Salem Hesari, D. Henke, V. Reshetov, F. Jiang, A. Seyfollahi, L. B. Knee, L. Baker, J. Bornemann, D. Chalmers
Proceedings Volume 11453, 114533A (2020) https://doi.org/10.1117/12.2562751
KEYWORDS: Receivers, Optical instrument design, Polarization, Cryogenics, Reflector telescopes, Radio astronomy, Calibration, Transducers, Radio telescopes, Composites
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