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I am setting up a microwave measurement circuit that includes some low-noise amplifiers (e.g. RLNA02G08G30). In our academic lab setup, we generally bias these types of components by chopping the banana plugs of a pair of cables, soldering the loose end to the DC pins on the component and...
I am trying to simulate CPW resonators in CST. When I place a floating stub of line next to a feedline, and simulate the s-parameters of the feedline, it shows the resonance as expected, but as I move the stub away from the feedline to try to get the intrinsic Q-factor of the resonator, the...
In quasi TEM transmission, waves in the two dielectrics try to travel at different velocities, does this mean that if the TL is long enough, you can have opposite phase in the fields within one dielectric and the other? If so, does this have impedance implications? (e.g. will the impedance be...
EM simulation software (e.g. CST-MWS), can calculate the current on the surface of conductors from the magnetic field solutions. Does anyone know how this current is calculated and what is it's meaning?
In a coaxial cable, for example, is that surface current all the current that flows through...
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