Divider

Model ideal frequency-independent dividers (combiners) with S-parameters

  • Library:
  • RF Blockset / Circuit Envelope / Junctions

Description

The Divider block models power dividers (combiners) in a circuit envelope environment as an ideal s-parameter model.

Parameters

expand all

Divider type, specified as:

  • T power divider

    The s-parameter matrix for T-power divider is :

    [s11s21s31s21s22s32s31s32s33]

    where:

    • s11 = (z23 –z1) / (z23 + z1)

    • s22 = (z13 –z2) / (z13 + z2)

    • s33 = (z12 –z3) / (z12 + z3)

    • s21 = (1+ s11) * sqrt(z1 / z2)

    • s31 = (1+ s11) * sqrt(z1 / z3)

    • s32 = (1+ s22) * sqrt(z2 / z3)

    • z12 = z1 * z2 / (z1 + z2)

    • z13 = z1 * z3 / (z1 + z3)

    • z23 = z2 * z3 / (z2 + z3)

    • z1 = Z0(1), z2 = Z0(2), z3 = Z0(3)

    • Reference Impedances: Z0 = [z1, z2, z3 ]

  • Resistive power divider

    The s-parameter matrix for Resistive power divider is :

    [01/21/21/201/21/21/20]

    When you select this option, the following parameter is available:

  • Wilkinson power divider

    The s-parameter matrix for Wilkinson power divider is:

    [0-j/2-j/2-j/200-j/200]

    Note

    For DC carrier (0 Hz) frequency, Wilkinson power divider is a zero matrix.

  • Tee H-plane (S33=0)

    The Tee H-plane (S33=0) is symmetrical, lossless, and reciprocal. The s-parameter matrix is:

  • Tee E-plane

    The Tee E-plane is symmetrical, lossless, and reciprocal. The s-parameter matrix is:

Reference impedance of divider, specified as a positive scalar or three-tuple vector.

Select this parameter to ground and hide the negative terminals. To expose the negative terminals, clear the parameter. By exposing these terminals, you can connect them to other parts of your model.

By default, this option is selected.

Introduced in R2014a