SIWSplitter

Create an SIW Splitter in microstrip form

Since R2023b

Description

Use the SIWSplitter object to create a Substrate Integrated Waveguide (SIW) power divider in microstrip form.

Creation

Syntax

splitter = SIWSplitter

splitter = SIWSplitter(Name=Value)

Description

splitter = SIWSplitter creates a default SIW power divider. Default substrate is Teflon with a thickness of 0.8e-3 m.

splitter = SIWSplitter(Name=Value) sets Properties using one or more name-value arguments. For example, SIWSplitter(Width=0.008) creates a power divider with width 0.008 m. Properties not specified retain their default values.

Properties

FeedLine — Shape of the SIW power divider's feed line

traceTapered (default) | traceRectangular

Feed line shape is specified as FeedLine.

Example: line.FeedLine = traceRectangular

Data Types: object

InputLineLength — Input line length of the SIW power divider in meters

0.0155 (default) | positive scalar

Length is specified as a positive scalar

Example: Spitter = SIWSplitter(InputLineLength = 0.02161)

Data Types: double

SplitLineLength — Split line length of the SIW power divider in meters

0.0145 (default) | positive scalar

Split line length is specified as a positive scalar

Example: Splitter = SIWSplitter(SplitLineLength = 0.015)

Data Types: double

Width — Width of the SIW line in meters

0.0125 (default) | positive scalar

Width is specified as a positive scalar

Example: Splitter = SIWSplitter(Width = 0.0077)

Data Types: double

ViaSpacing — Spacing between vias is a two element vector [ViaSpacing(1) ViaSpacing(2)] in meters

[1.7e-3 11.0e-3] (default) | positive vector

Via spacing is specified as a two element positive vector. ViaSpacing(1) is the center-to-center spacing between adjacent vias along the InputLineLength and the SplitLineLength. ViaSpacing(2) is the center-to-center spacing between adjacent vias along the Width.

Example: Splitter = SIWSplitter(ViaSpacing = [1.3e-3 5.1e-3])

Data Types: double

ViaDiameter — Via diameter in meters

0.50e-3 (default) | positive scalar

Via diameter is specified as a positive scalar.

Example: Splitter = SIWSplitter(ViaDiamater = 0.49e-3)

Data Types: double

PostDiameter — Post diameter in meters

0.254e-3 (default) | positive scalar

Post diameter is specified as a positive scalar.

Example: Splitter = SIWSplitter(PostDiamater = 0.29e-3)

Data Types: double

PostOffsetX — X-offset of the Post referenced from the centers of the vias placed along the Y-axis at the right edge of the object in meters

5.5e-3 (default) | positive scalar

PostOffsetX value increases toward the input line. Post diameter is specified as a positive scalar.

Example: Splitter = SIWSplitter(PostOffsetX = 0.29e-3)

Data Types: double

Height — Height of the SIW line from the ground plane in meters

8.0000e-4 (default) | positive scalar

Height is specified as a positive scalar.

Example: Splitter = SIWSplitter(Height = 0.248e-3)

Data Types: double

GroundPlaneLength — Length of the ground plane in meters

34.1e-3 (default) | positive scalar

Ground plane length is specified as a positive scalar.

Example: Splitter = SIWSplitter(GroundPlaneLength = 36.1e-3)

Data Types: double

Conductor — Type of metal in conducting layers (accepts metal object)

PEC (default) | character

Conductor is specified as a metal object.

Example: line.Conductor = metal('Copper')

Data Types: string

Substrate — Type of substrate dielectric material (accepts dielectric object)

Teflon (default) | character

Substrate is specified as a dielectric object.

Example: line.Substrate = dielectric('FR4')

Data Types: string

Object Functions

charge	Calculate and plot charge distribution
current	Calculate and plot current distribution
dgs	Create defected ground structure of PCB element
feedCurrent	Calculate current at feed port
layout	Plot all metal layers and board shape
mesh	Change and view mesh properties of metal or dielectric in PCB component
shapes	Extract all metal layer shapes of PCB component
show	Display PCB component structure or PCB shape
sparameters	Calculate S-parameters for RF PCB objects

Examples

SIW Power Divider

Create and visualize a SIW Power Divider

Splitter = SIWSplitter

Splitter = 
  SIWSplitter with properties:

             FeedLine: [1x1 traceTapered]
      InputLineLength: 0.0155
      SplitLineLength: 0.0145
                Width: 0.0125
           ViaSpacing: [0.0017 0.0110]
          ViaDiameter: 5.0000e-04
         PostDiameter: 2.5400e-04
          PostOffsetX: 0.0055
    GroundPlaneLength: 0.0341
               Height: 8.0000e-04
            Substrate: [1x1 dielectric]
            Conductor: [1x1 metal]

show(Splitter)

SIW Power Divider with Rectangular Feedline

Create and visualize a SIW power divider with rectangular feedline.

Splitter = SIWSplitter

Splitter = 
  SIWSplitter with properties:

             FeedLine: [1x1 traceTapered]
      InputLineLength: 0.0155
      SplitLineLength: 0.0145
                Width: 0.0125
           ViaSpacing: [0.0017 0.0110]
          ViaDiameter: 5.0000e-04
         PostDiameter: 2.5400e-04
          PostOffsetX: 0.0055
    GroundPlaneLength: 0.0341
               Height: 8.0000e-04
            Substrate: [1x1 dielectric]
            Conductor: [1x1 metal]

obj.Feedline = traceRectangular("Length",3e-3,"Width",2e-3)

obj = struct with fields:
    Feedline: [1x1 traceRectangular]

show(Splitter)

Version History

Introduced in R2023b