Upgrade of EMIR's Band 3 and Band 4 Mixers for the IRAM 30 m Telescope

Autor:	D. Billon-Pierron, A. Barbier, J. Reverdy, D. Maier
Rok vydání:	2012
Předmět:	Physics Radiation Terahertz radiation business.industry Bandwidth (signal processing) Electrical engineering law.invention Telescope Upgrade Intermediate frequency law Extremely high frequency Radio frequency S band Electrical and Electronic Engineering business
Zdroj:	IEEE Transactions on Terahertz Science and Technology. 2:215-221
ISSN:	2156-3446 2156-342X
DOI:	10.1109/tthz.2011.2180609
Popis:	The Eight Mixer Receiver (EMIR) is a multi-band millimeter wave receiver installed since 2009 at the 30 m telescope of the Institut de Radio Astronomie Millimetrique (IRAM) at Pico Veleta in Spain. In autumn 2011, Band 3 and Band 4 will be equipped with state-of-the-art sideband-separating mixers with 8 GHz intermediate frequency (IF) bandwidth. For Band 3 a side- band-separating mixer has been developed within the European project AMSTAR+ in order to replace the currently employed single-sideband mixer. The new mixer has an IF bandwidth twice as large as the current one, and two sidebands, thus doubling the continuum sensitivity of the receiver. The mixer currently installed in Band 4 will simply be upgraded to 8 GHz IF bandwidth by changing its IF components.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5b123d4f88ac620d12ff4998c1783b3f https://doi.org/10.1109/tthz.2011.2180609 Zobrazit plný text záznamu