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Full Wave Dipole Formula:
Where: \( c = 3 \times 10^8 \text{ m/s} \) (speed of light)
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A full wave dipole antenna is a type of radio antenna that is one wavelength long at the operating frequency. It consists of two identical conductive elements such as metal wires or rods, which are bilaterally symmetrical.
The calculator uses the full wave dipole formula:
Where:
Explanation: The formula calculates the physical length of a full wave dipole antenna based on the operating frequency and the speed of light.
Details: Accurate antenna length calculation is crucial for optimal signal transmission and reception. A properly sized antenna resonates at the desired frequency, maximizing efficiency and performance.
Tips: Enter the frequency in Hertz (Hz). The value must be valid (frequency > 0). The calculator will output the required antenna length in meters.
Q1: What is the difference between half-wave and full-wave dipoles?
A: A half-wave dipole is λ/2 long, while a full-wave dipole is λ long. Full-wave dipoles have different radiation patterns and impedance characteristics compared to half-wave dipoles.
Q2: Why is the speed of light used in the calculation?
A: Radio waves travel at the speed of light, so the antenna length is directly related to the wavelength of the signal, which depends on the speed of light.
Q3: Does this calculation account for velocity factor?
A: No, this is a theoretical calculation for free space. In practice, antenna elements may require adjustment for velocity factor based on the material and construction.
Q4: What are common applications of full-wave dipoles?
A: Full-wave dipoles are used in various radio communications applications, including amateur radio, broadcast services, and wireless communication systems.
Q5: How accurate is this calculation for real-world antennas?
A: This provides a theoretical starting point. Actual antenna length may need adjustment based on environmental factors, mounting height, and nearby objects.