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Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer
W Zhang ; W mial ; Q j yao ; Z H lin ; S C Shi ; JR Gao ; G N Goltsman
2012
Source PublicationPhysics Procedia
ISSN1875-3892
Volume36Pages:334-337
AbstractWe report on a 2.5 THz spiral antenna coupled NbN hot electron bolometer (HEB) mixers, fabricated with in-situ process. The receiver noise temperature with lowest value of 1180 K is in good agreement with calculated quantum efficiency factor as a function of bias voltage. In addition, the measured spectral response of the spiral antenna coupled NbN HEB mixer shows broad frequency coverage of 0.8-3 THz, and corrected response for optical losses, FTS, and coupling efficiency between antenna and bolometer falls with frequency due to diffraction-limited beam of lens/antenna combination.
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/7982
Collection毫米波和亚毫米波技术实验室
Recommended Citation
GB/T 7714
W Zhang,W mial,Q j yao,et al. Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer[J]. Physics Procedia,2012,36:334-337.
APA W Zhang.,W mial.,Q j yao.,Z H lin.,S C Shi.,...&G N Goltsman.(2012).Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer.Physics Procedia,36,334-337.
MLA W Zhang,et al."Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer".Physics Procedia 36(2012):334-337.
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