Introduction

In circuit theory, n-port network parameters are widely used in modeling both lumped and distributed networks. Often, the networks are frequency-dependent and are represented by a list of network parameters corresponding to a list of sampled frequency points. This data is typically stored in Touchstone or CITI files.

nport tries to provide an intuitive interface to n-port network parameters. The frequency dependence of the parameters is handled transparantly so that the user does not have to take care of this manually. This way, performing calculations on n-port data is simplified significantly. In addition, a number of functions are provided to manipulate the n-port data, such as converting between different n-port representations.

Next to providing an abstraction for n-port parameter data, nport includes extra modules building on top of this basic functionality:

• reading and writing Touchstone and CITI files
• extraction of transmission line parameters from 2-port data
• RF de-embedding algorithms

Refer to the Tutorial for a more in-depth introduction to using nport.