Antenna Factor Calculator

This calculator computes the antenna factor for radio frequency (RF) applications, which is the ratio of the electric field strength at a point in space to the power density of the RF field at that point.

Input Parameters

Calculation Results

Calculation Formula

Antenna Factor (AF) = 87.6 / Frequency (MHz) * 10^(-Gain/10)

Where:
AF = Antenna Factor (dB)
Frequency = Frequency in MHz
Gain = Antenna Gain in dBi

Result

Antenna Factor: -- dB

Antenna Factor Calculator Usage Guide

Learn how to use the Antenna Factor Calculator and its working principles

What is Antenna Factor?

The antenna factor (AF) is a measure used in radio frequency engineering that relates the strength of the electric field at a point in space to the power density of the radio wave at that point. It is typically expressed in dB and is used to determine the sensitivity of a receiver when paired with an antenna.

How to Use This Calculator

  1. Enter the frequency of the RF signal in MHz.
  2. Select the type of antenna (dipole, monopole, patch, or omni-directional).
  3. Input the gain of the antenna in dBi.
  4. Click the "Calculate" button to compute the antenna factor.

Applications

The Antenna Factor Calculator is useful in various RF applications including:

  • Designing and testing wireless communication systems
  • Calibrating RF receivers and antennas
  • Evaluating signal strength in different environments
  • Compliance testing for radio frequency devices

Formula Explanation

The formula used in this calculator is:

AF = 87.6 / Frequency (MHz) * 10^(-Gain/10)

Where:

  • AF is the antenna factor in dB
  • Frequency is the frequency of the RF signal in MHz
  • Gain is the antenna gain in dBi