Results 301 to 310 of about 1,058,127 (374)

A Re-Evaluation of the Contributions to Radio Astronomy of the Nançay Observatory

open access: green, 1985
Ben R. Martin   +3 more
openalex  

Radio Astronomy [PDF]

open access: yesScience, 1964
Contains reports on three research projects.National Aeronautics and Space Administration (Grant NsG-419)National Aeronautics and Space Administration (Grant NsG-250-62)U. S.
Barrett, Alan H.   +2 more
core   +6 more sources

SCISRS: Signal Cancellation using Intelligent Surfaces for Radio Astronomy Services

Global Communications Conference, 2022
Recently, there has been great interest in facilitating coexistence of active and passive users of the electromagnetic (EM) spectrum, with the primary objective of higher spectral utilization.
Zhibin Zou   +4 more
semanticscholar   +1 more source

Low-Noise Amplifier for Next-Generation Radio Astronomy Telescopes: Review of the State-of-the-Art Cryogenic LNAs in the Most Challenging Applications

IEEE Microwave Magazine, 2022
Radio astronomy is a subfield of astronomy that explores the universe via radio signals up to a few terahertz. Since the first detection of radio signals from the Milky Way by Karl G.
Chau-Ching Chiong   +3 more
semanticscholar   +1 more source

Radio Astronomy [PDF]

open access: yesAmerican Journal of Physics, 1967
Contains reports on three research projects, with one broken into two subsections.National Aeronautics and Space Administration (Grant NsG-419)National Aeronautics and Space Administration (Contract NSR-22-009-120)Joint Services Electronics Programs (U.S.
John D. Kraus, Alan T. Moffet
openaire   +3 more sources

Ultrawideband Conical Log-Spiral Circularly Polarized Feed for Radio Astronomy

IEEE Transactions on Antennas and Propagation, 2020
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.
K. Abdalmalak   +10 more
semanticscholar   +1 more source

40. Radio Astronomy (Radio Astronomie)

Transactions of the International Astronomical Union, 1988
The following commission members have contributed to this report: M Birkinshaw, R J Cohen, J J Condon, T J Cornwell, J R Dickel, P A Feldman, R Genzel, M Goss, V Kapahl, Gopal Krishna, M Kundu, A G Lyne, C R Masson, A C Readhead, W Reich, J M Riley, A J Turtle, J M van der Hulst, T L Wilson.
J E Baldwin   +14 more
openaire   +1 more source

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