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Antennas
Antennas are devices that transmit and receive electromagnetic waves. They are used in a wide variety of applications.
Factors affecting antenna selection:
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Signal type: Different types of antennas are designed to receive different types of signals, such as radio waves, television waves, or cellular phone signals.
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Frequency range: Antennas operate in a specific frequency range. You must choose an antenna that operates in the frequency range used by your application.
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Directionality: Some antennas are directional and focus the signal in a specific direction, while others are omnidirectional and receive signals from all directions.
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Gain: Antenna gain is a measure of its ability to amplify a signal. High-gain antennas are needed in applications where the signal is weak.
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Size: The size of the antenna depends on the type of antenna, the frequency range, and the required gain.
