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Effect of the Criti...
Effect of the Critical and Operational Temperatures on the Sensitivity of MgB2 HEB Mixers
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- Novoselov, Evgenii, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bevilacqua, Stella, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Cherednichenko, Serguei, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Shibata, Hiroyuki (author)
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Tokura, Yasuhiro (author)
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: IEEE Transactions on Terahertz Science and Technology. - 2156-342X .- 2156-3446. ; 6:2, s. 238-277
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Abstract
Subject headings
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- In this paper, we present a study of the noise and thegain of MgB hot-electron bolometer mixers with different critical temperatures and at various operation temperatures. At a local oscillator (LO) frequency of 1.63 THz the minimum input receiver noise temperature was 700 K with a gain of 18 dB for a device with a of 8.5 K. For a device with a of 22.5 K the corresponding values were 1700 K and 19 dB. For the latter device the was 2150 K at a bath temperature of 12 K, which is not achievable with Nb-compound based HEB mixers. We present and compare different methods for measurements of the HEB mixer gain and the output noise.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Keyword
- hot-electron bolometer (HEB)
- noise temperature
- conversion gain
- MgB2 film
- Bolometer
- sub-mm astronomy
- THz mixer.
Publication and Content Type
- art (subject category)
- ref (subject category)
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