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Terminal Resistance Of Loop Antenna Formula:
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The Terminal resistance of loop antenna is defined as when current is drawn from a cell, the potential difference between the sides of the coil is called its terminal resistance. It represents the total resistance encountered at the antenna terminals.
The calculator uses the Terminal Resistance formula:
Where:
Explanation: The terminal resistance is the sum of the loss resistance (ohmic losses in the antenna system) and the radiation resistance (resistance due to energy radiated as electromagnetic waves).
Details: Calculating terminal resistance is crucial for antenna design and optimization. It helps in determining the efficiency of the antenna system and ensures proper impedance matching with the transmission line.
Tips: Enter loss resistance and radiation resistance values in Ohms. Both values must be non-negative numbers. The calculator will compute the total terminal resistance.
Q1: What is loss resistance in an antenna?
A: Loss resistance is the ohmic resistance of the ground system and loading coil, where a significant portion of transmitter power is dissipated as heat rather than being radiated.
Q2: What is radiation resistance?
A: Radiation resistance is that part of an antenna's feed point electrical resistance that is caused by the emission of radio waves from the antenna.
Q3: Why is terminal resistance important?
A: Terminal resistance helps in understanding the overall efficiency of the antenna system and is essential for proper impedance matching to maximize power transfer.
Q4: How does terminal resistance affect antenna performance?
A: Higher terminal resistance generally indicates higher losses in the system, reducing the overall efficiency and radiation capability of the antenna.
Q5: Can terminal resistance be measured directly?
A: While terminal resistance can be calculated from component values, it is typically measured using impedance analyzers or network analyzers at the antenna terminals.