# Admittance Network

AdmittanceNetwork defines a linear lumped network from polynomial coefficients of an admittance function.

This network corresponds to tidy3d.rf.AdmittanceNetwork (opens new window).

# Numerator Coefficients

a: Coefficients of the numerator polynomial for the admittance function.

  • Type: tuple of non-negative float numbers
  • Required field

The coefficient order follows the API definition of the admittance function.

# Denominator Coefficients

b: Coefficients of the denominator polynomial for the admittance function.

  • Type: tuple of non-negative float numbers
  • Required field

The coefficient order follows the API definition of the admittance function.

NOTE

Use RLCNetwork for common resistor, capacitor, and inductor combinations. Use AdmittanceNetwork when the network is better represented directly as an admittance function.

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