Novel Planar Toothed Antenna Calc

Calculate resonant frequencies and visualize log-periodic planar antennas

(What makes it novel?)

Calculator by KC3VJA

Antenna Parameters

Input Mode:

Antenna Visualization

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Calculate antenna parameters to see visualization

Formulas Used

When inputting r₁:

\[ f_n = \frac{C}{2 \left[ r_n \left(1 + \sqrt{\Gamma}\right) \left( \frac{\alpha \pi}{180} \right) + r_n \left(\sqrt{\Gamma} - 1\right) \right] \sqrt{\varepsilon_{\text{eff}}}} \] \[ \text{Where } r_n = r_1 \times \Gamma^{(n-1)} \] \[ \text{Note: } \beta = 90° - \alpha \text{ (for visualization)} \]

When inputting f₁:

\[ r_1 = \frac{C}{2 f_1 \left( (1 + \sqrt{\Gamma}) \left( \frac{\alpha \pi}{180} \right) + \sqrt{\Gamma} - 1 \right) \sqrt{\varepsilon_{\text{eff}}}} \]