Microstrip Wavelength Calculator | RF PCB Tool

This tool calculates the guided wavelength of a signal propagating through a microstrip line on a PCB.

What is Microstrip Wavelength?

The microstrip wavelength is the effective wavelength of an electromagnetic wave as it travels along a microstrip transmission line. It is influenced by the physical properties of the substrate material and the geometry of the microstrip line.

Microstrip Wavelength Calculator

EXAMPLE:

• INPUTS:

  • Frequency = 2.4 GHz
  • Substrate Relative Permittivity (εr) = 4.4 (For FR4 substrate material)
  • Trace Width (w) = 3 mm
  • Substrate Height (h) = 1.5 mm

• OUTPUT:

  • Effective Relative Permittivity (εeff) = 3.34
  • Guided Wavelength (λg) = 68.37 mm

Microstrip Wavelength Formula

Where,

• λg = Guided Wavelength (mm)
• c = Speed of Light in Vacuum (approximately 3 x 10^8 m/s)
• f = Frequency (Hz)
• εeff = Effective Relative Permittivity of the Microstrip Line
• w = Width of the Microstrip Trace (mm)
• h = Height of the Substrate (mm)

key benefits

• Accurate Design: Helps in designing microstrip lines with precise wavelength characteristics.
• Optimized Performance: Ensures optimal signal integrity and performance in RF and microwave circuits.
• User-Friendly: Easy to use interface for quick calculations.
• Versatile Applications: Suitable for various PCB materials and configurations.

Applications

• RF and Microwave Circuit Design
• Antenna Design
• PCB Transmission Line Design
• High-Frequency Signal Integrity Analysis

References

• Pozar, D. M. (2011). Microwave Engineering (4th ed.). Wiley.
• Bahl, I. J., & Bhartia, P. (2003). Microstrip Lines and Slotlines (2nd ed.). Artech House.
• Gupta, K. C., Garg, R., Bahl, I. J., & Bhartia, P. (1996). Microstrip Lines and Slotlines. Artech House.