Keyword : radio astronomy


Development of Superconducting Devices Supporting Radio Astronomy
Yoshinori UZAWA Matthias KROUG Takafumi KOJIMA Masanori TAKEDA Kazumasa MAKISE Shohei EZAKI Wenlei SHAN Akihira MIYACHI Yasunori FUJII Hirotaka TERAI 
Publication:   
Publication Date: 2021/09/01
Vol. E104-C  No. 9 ; pp. 411-421
Type of Manuscript:  INVITED PAPER (Special Section on Fabrication of Superconductor Devices; Key Technology in Superconductor Electronics)
Category: 
Keyword: 
radio astronomySIS mixersALMA Band 10widebandmultibeam
 Summary | Full Text:PDF(2MB)

Noise Temperature Approximations for Offset Gregorian Reflector Systems
Robert LEHMENSIEK Dirk I. L. DE VILLIERS 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2 ; pp. 332-339
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
Keyword: 
noise temperatureradio astronomyreceiving sensitivityreflector antennas
 Summary | Full Text:PDF(3.5MB)

Effects of Diffraction and Feed Pattern Variation in Shaped Offset Gregorian Reflectors
Dirk I. L. DE VILLIERS Robert LEHMENSIEK Marianna V. IVASHINA 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2 ; pp. 316-323
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
Keyword: 
aperture efficiencyreflector antennasradio astronomy
 Summary | Full Text:PDF(2.8MB)