Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Teng, Hsiao-Feng | en_US |
dc.contributor.author | Wu, Jing-Cheng | en_US |
dc.contributor.author | Li, Huan-Hsin | en_US |
dc.contributor.author | Chiueh, Tzi-Hong | en_US |
dc.contributor.author | Niu, Dou-Chih | en_US |
dc.contributor.author | Hu, Robert | en_US |
dc.date.accessioned | 2019-04-03T06:47:40Z | - |
dc.date.available | 2019-04-03T06:47:40Z | - |
dc.date.issued | 2010-01-01 | en_US |
dc.identifier.isbn | 978-0-81948-231-0 | en_US |
dc.identifier.issn | 0277-786X | en_US |
dc.identifier.uri | http://dx.doi.org/10.1117/12.857833 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/146285 | - |
dc.description.abstract | NTU-Array is designed for W-band (78-113Ghz) interferometric observations of Sunyaev-Zeldovich effects. The first phase operation of the telescope with 6 receivers had its first light in 2008 with single-polarization and half the full bandwidth. The second-phase operation of NTU-Array in Nevada will begin the dual-polarization, full-band observation in 2010. One-bit sampling at 18Ghz and digital correlation are in use in this telescope. Due to the ultra broadband coverage, the IF system divides the 35GHz full-band into four 8.7GHz sub-bands. The first stage of IF module containing a 35GHz broadband amplifier with fairly flat-gain performance over 25db gain divides the first-stage IF into two outputs. The 2nd-stage IF module further divides the two input IF signals and down-converts them to four basebands of DC-8.7Ghz. An LO module with 8.7Ghz input is to generate outputs with x2, x3 and x9 harmonics for the down-conversion. The Walsh function is injected into the x9 LO via an IQ mixer. Each IF baseband is transmitted through an optical link to the 18Ghz, 1-bit sampling ADC located in the control room. The analog optical link contains a driver and equalizer to compensate for the path loss. Considering the limited size of the telescope mount, the entire IF/LO system of each receiver has a compact size about 20cm cubed. This physical size can be further reduced to fit the future 19-pixel-receiver upgrade of NTU-Array | en_US |
dc.language.iso | en_US | en_US |
dc.title | Ultra-broadband IF/LO system of NTU W-band interferometer array | en_US |
dc.type | Proceedings Paper | en_US |
dc.identifier.doi | 10.1117/12.857833 | en_US |
dc.identifier.journal | MILLIMETER, SUBMILLIMETER, AND FAR-INFRARED DETECTORS AND INSTRUMENTATION FOR ASTRONOMY V | en_US |
dc.citation.volume | 7741 | en_US |
dc.citation.spage | 0 | en_US |
dc.citation.epage | 0 | en_US |
dc.contributor.department | 電子工程學系及電子研究所 | zh_TW |
dc.contributor.department | Department of Electronics Engineering and Institute of Electronics | en_US |
dc.identifier.wosnumber | WOS:000285838800032 | en_US |
dc.citation.woscount | 0 | en_US |
Appears in Collections: | Conferences Paper |
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