The reactance (suspectance) arcs are parts of circles with radii the reciprocals of the reactances (suspectances). Snapshot 2: This shows reactance arcs the horizontal line is zero reactance (suspectance). An oscillation would imply that $|\Gamma_((-1.9762770975581136, 1.Snapshot 1: This shows resistance circles the dark blue circle is the zero resistance (conductance) "line." The resistance (conductance) circles have radii, where is the standardized resistance (conductance), with centers on the zero resistance (conductance) line and touching the infinite resistance (conductance) point. When designing an amplifier, we do not want oscillations on either of the ports. One of the most important aspects in active microwave design is that of stability. Tline = EquationNetwork(2,50,idealTransmissionLine) 2-Port Network Once again, for n-port networks, the function must provide an n-square matrix function idealTransmissionLine( freq,Z0) To build the EquationNetwork: RL = EquationNetwork(1,50,inductorAndResistor) 1-Port Network To use an equation-driven network in Marconi, the function must accept the kwags freq and Z0. The S-Parameters of an RL network would look like: function inductorAndResistor( freq,Z0)Įnd inductorAndResistor (generic function with 1 method) To build a network from an equation, we start with an equation that defines some S-Parameters.
myNetwork = DataNetwork(2,50, ]) 2-Port Network MyNetwork = DataNetwork(1,50,) 1-Port Networkįor more than 1 port, the S-Parameters have to be an n-square matrix for n ports. # DataNetwork(ports,Z0,frequency,s_params) If they are not evenly-spaced, all interpolation operations will be Grid interpolations instead of splines.
To build a network from a Touchstone file see File IO, otherwise we can simply use the constructor for DataNetwork.īesides ports and Z0, a DataNetwork must also have frequency, a vector of frequencies for which the network is characterized, and s_params, for the S-Parameters themselves.Īs of this release, the frequency/ s_params lists must be ordered. This object can be constructed with data, equations, and the combination of other networks.Īll networks provide attributes ports and Z0 for characteristic impedance. Marconi is structured around a base AbstractNetwork object.
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