Ultralow-temperature noise source assembly
A noise source and ultra-low temperature technology, which is applied in the direction of improving the amplifier to reduce the impact of noise, can solve the problems of uneven temperature and error between RF cables and adapters, and achieve the effect of low working temperature, fast switching speed and accurate measurement
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[0015] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments.
[0016] This embodiment provides an ultra-low temperature noise source component, such as figure 1 As shown, it includes a noise source circuit for generating a noise signal, a matching circuit for impedance matching and amplitude adjustment, and a switch gating circuit for determining the signal output state. The noise source circuit, the matching circuit and the gate switch circuit are connected in series in sequence.
[0017] Specifically, the noise source circuit includes a DC power supply port P1, capacitors C1-C4, inductors L1, L2, ...
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