Research on noise modeling of low temperature E-band amplifier
In this paper,an E-band multi-parameter extraction platform was established under low temperature condi-tions,and the key components of the sealed window,vacuum dewar and waveguide to coaxial conversion structure were described in detail.The actual test shows that the platform can extract the E-band parameters of low noise amplifiers under low tempera-ture conditions.Compared with other test platforms,this test platform can extract multiple parameters of microwave devices at variable and constant low temperature,and by developing TRL calibration components,the influence of waveguide-coaxial con-version structure is eliminated,and the accuracy of parameter extraction is ensured.In addition,since the test platform can only measure limited sampling point data,the unmeasured E-band parameters are predicted using the neural network model to better evaluate the performance of the low noise amplifier at low temperatures.
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