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Splitters and Couplers

Equal and unequal Wilkinson splitters; Lange, rat-race, and branchline couplers

Use the splitter and coupler objects and functions to create and visualize splitters and couplers used on a printed circuit board (PCB).

Wilkinson power splitters are commonly used as power dividers for lossless power division and matching between ports. An unequal Wilkinson splitter is used in FMCW radars to split power unequally between the transmitter and the local oscillator or to feed power to beam forming antenna arrays.

Couplers have the unique capability to divide power between two ports with a phase shift. A rat-race coupler splits power as the sum or the difference of the input powers between the output ports. A branchline coupler divides the input power between the output ports with a phase difference of 90 degrees. Lange couplers are used to combine or split power in a large range of frequencies.


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couplerRatraceCreate equal-split rat-race coupler or 180-degree-ring hybrid
couplerBranchlineCreate branch line coupler or quadrature hybrid
couplerDirectionalCreate single section or multi-section directional coupler in microstrip form
wilkinsonSplitterCreate Wilkinson splitter in microstrip form on X-Y plane
wilkinsonSplitterUnequalCreate unequal Wilkinson splitter
wilkinsonSplitterWidebandCreate wideband Wilkinson power divider
powerDividerCorporateCreate corporate power divider
splitterTeeCreate T-junction power splitter


showDisplay PCB component structure or PCB shape
infoDisplay information about PCB component structure
pcbcascadeCreate new component using cascade operation
shapesExtract all metal layer shapes of PCB component