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noise figure attenuator
In theory the noise figure of an attenuator is its loss, but is it possible to measure the noise figure of an attenuator in the experiment?
Thanks!
When I run Advanced designed system , a warning message is appeared
"\\users\\default\\hpeesof\\circuit\\ael\\AEL file not found" ? Could anyone tell me what this message means and how to solve the problem?
Thanks in advance!
Thanks for the reply. The second- and third-order harmonic distortion and the third-order intermodulation of a model is measured, so I wish to extract the parameters of the model from the measured distoriton data. I wish to use the optimization tool in ads to get the parameters, but I find it is...
I want to optimize a model in ads using the measured nonlinear distortion data. In HB simulation environment, I can not find ways to write the measured distrotion data such as harmonic distortion and intermodulation distoriton into the goal function. Could anyone give me some guidance to solve...
I used network analyzer to measure the s parameter, the two termial of the microstrip structure are SMA connector. Our lab only have the caliaration kit for 2.4mm connector, so a converter of SMA and 2.4mm connector is used .In the calibration, the reference plane is at the terminal of 2.4mm...
I measured a microstrip structure on PCB, at certain frequency the s11 gets lower sharply, but s21 does not increase at that frequency, so I guess whether the power is radiated at that frequency and the microstrip structure acts as an antenna, could some experienced person give me some guide...
connector cpw
SMA-KFD78 is modeled in the file. But I am not sure whether it reflect the actual SMA-KFD78, maybe some information about the cross section about this component is helpful. Anyone could help me?
convergence in spectre
When the circuit is not converged in spice or ADS, the nodeset command could be used to help to solve the problem. I want to know whether there is a similiar commnd in spectra. Thanks in advance!
sorry, I am not familiar with the concept about rf system. I wish to design an amplifier in radio over fiber link.The input of the amplifer is the signal from the antenna, and the output of the amplifier is to the laser. I wish to estimate the range of the signal intensity in a practial...
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