1. What is a Full Wave Dipole Antenna Calculator?

Definition: This calculator determines the physical length of a full-wave dipole antenna based on the desired frequency and velocity factor.

Purpose: It helps radio enthusiasts, engineers, and hobbyists design antennas for specific frequency ranges.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Length \) — Total dipole length (meters)
• \( c \) — Speed of light (3 × 10⁸ m/s by default)
• \( f \) — Frequency (Hz)

Explanation: The speed of light is divided by the frequency to determine the wavelength, which equals the full-wave dipole length.

3. Importance of Accurate Dipole Length

Details: Proper antenna length ensures maximum power transfer and efficient radiation at the desired frequency.

4. Using the Calculator

Tips: Enter the desired frequency in Hz and the velocity factor (default is speed of light 3e8 m/s). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between full-wave and half-wave dipole?
A: A full-wave dipole is twice as long as a half-wave dipole and has different radiation characteristics.

Q2: Why use speed of light in the calculation?
A: Radio waves travel at the speed of light in a vacuum, which provides the theoretical wavelength.

Q3: Should I adjust the velocity factor for different materials?
A: Yes, if using insulated wire or other materials, reduce the velocity factor (typically 95-97% of light speed).

Q4: How do I convert the result to feet?
A: Multiply the meter result by 3.28084 to get length in feet.

Q5: Does this account for antenna end effects?
A: No, practical antennas are typically 5% shorter than theoretical length due to end effects.