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We have a variety of tools on this page to help you make the right antenna choices.

Please use the navigation below to jump to each section for specific tools.

COPLANAR WAVEGUIDE WITH GND IMPEDANCE CALCULATOR - Create the ideal trace for your antenna

The characteristic impedance (Zo) of coplanar waveguide with ground with signal side ground plane can be calculated using the active calculator below. Simply input the required data fields to check your chosen dimensions ensure the impedance you require. For most antenna systems this is 50ohm. Selecting dimensions that get within 5ohms is considered a good transmission line.

eff)  - The dielectric constant of FR4 normally ranges from 3.8 to 4.8. This can be found out from your PCB supplier or datasheet of the material you will use.

(H) - The height is the distance of your PCB stack-up between the component side layer where the transmission line is placed to the GND plane on the next layer below. If you have not decided on a final stack-up you should pick a height that your supplier recommends for your PCB layer count.



Relative Dielectric Constant (εr): 
Track Width (W): 
Gap Width (S): 
Dielectric Thickness (H): 


Impedance (Zo): 
Effective Dielectric Constant (εeff): 

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A complete solution for global 4G LTE applications. Dimensions: 40.0 x…

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A high-performance solution for embedded design. For Ultra-Wide-Band applications. Dimensions: 10.0…

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Ultra small. Self Adhesive FPC + cable solution for ISM/LoRa applications.…

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