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RF Network - One Port

This is an example of a simulation of a Radio Frequency (RF) network with PathSim.

In this example, we are using the block RFNetwork provided in PathSim to create the state-space model of an N-port RF network. This block uses the `scikit-rf `__ package to convert the frequency domain data into a state-space model. This conversion is performed using a `Vector Fitting `__ method for fitting a rational function (model) to a set of frequency‐domain.

Let's first make all the necessary import

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The block RFNetwork takes as input either a `Touchstone file `__ (.sNp file) or a scikit-rf `Network `__. An N-port network has N inputs and N outputs.

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Under the hood, scikit-rf performs a Vector Fitting of the frequency data and creates a PathSim State-Space model.

In the following, we use a gaussian pulse to simulate the impulse response of the RF block. A spectrum analyzer (Spectrum) is used to display the frequency response of the response. This frequency response is then compared to the original frequency data.

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Below, we compare the PathSim's frequency response to the original measurement data and to their Vector Fitted model calculated with scikit-rf. The Vector Fitted model and the PathSim's frequency response are in perfect agreement:

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