Whip Antenna Calculator
Unit Converter ▲
Unit Converter ▼
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Capacitance (pF): {{ capacitanceResult }}
Inductance (nH): {{ inductanceResult }}
Quarter Wavelength (meters): {{ quarterWavelengthResult }}
Antenna Length (%): {{ lengthPercentageResult }}
Radiation Resistance (Ohms): {{ radiationResistanceResult }}
The Whip Antenna, often seen as a long straight rod on vehicles, is a type of flexible wire monopole antenna connected to a radio receiver or transmitter. It's designed to withstand motion without breaking, hence its name. Whip antennas, typically a quarter wavelength in size, are used across HF, VHF, and UHF frequency bands and have an omni-directional radiation pattern. They are prevalent in cell phones, walkie-talkies, cordless phones, FM radios, WiFi, and GPS devices due to their resilience and efficiency.
Whip Antenna Formula
The formulae used in calculating various parameters for whip antennas include calculating capacitance, inductance, quarter wavelength, antenna length as a percentage, and radiation resistance. These formulae take into account the frequency, length, and diameter of the antenna to provide precise calculations necessary for optimal antenna design and performance analysis.
Example Calculation
Given a frequency of 900 MHz, a length of 12 inches, and a diameter of 0.5 inches, the calculator can compute values such as capacitance, inductance, quarter wavelength, antenna length in percentage, and radiation resistance. These outputs are crucial for engineers and designers in creating efficient and effective whip antennas for various applications.
Understanding these concepts is essential for those involved in the design and application of whip antennas, offering insights into the practical aspects of RF and wireless communications.