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Author  |
Shurakov, Alexander; Tong, Edward; Blundell, Raymond; Gol'tsman, Gregory |
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Title |
Microwave stabilization of HEB mixer by a microchip controller |
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Conference Article |
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2012 |
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IEEE MTT-S international microwave symposium digest |
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1-3 |
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HEB mixer stability, microwave injection, Allan variance, Allan time |
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Abstract |
The stability of a Hot Electron Bolometer (HEB) mixer can be improved by the use of microwave injection. In this article we report a refinement of this approach. We introduce a microchip controller to facilitate the implementation of the stabilization scheme, and demonstrate that the feedback loop effectively suppresses drifts in the HEB bias current, leading to an improvement in the receiver stability. The measured Allan time of the mixer's IF output power is increased to > 10 s. |
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Montreal, QC, Canada |
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857 |
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