This calculator determines the effective dielectric constant (εeff) and guide wavelength (λg) of a slot line using the dielectric constant and frequency. It helps analyze signal propagation and impedance characteristics in microwave circuits.
Formulas
εeff = (εr + 1) / 2
λg = λo / √(εeff)
where λo = c / f, and c = 3 × 10⁸ m/s
Formula Explanation
- εr: Relative dielectric constant of the substrate.
- εeff: Effective dielectric constant accounting for field distribution.
- λg: Guide wavelength within the slot line medium.
Example
Input: f = 10 GHz, εr = 4.5
Result: εeff = 2.75, λg ≈ 18 mm
Who uses it
Ideal for RF engineers and circuit designers working on microwave and antenna systems where slot line structures are used for compact and efficient layouts.