How does an antenna add gain to a wireless signal?
- An antenna is designed to function as if it were isotropic and provides varying levels of gain across 360 degrees of coverage.
- An antenna uses specific circuitry to increase the gain of a wireless signal before transmission.
- An antenna uses external power to increase the gain of a wireless signal during transmission.
- An antenna shapes the RF energy as it is propagated into free space.
Explanation: Antennas are passive devices; they do not amplify a transmitter’s signal with any circuitry or external power. Instead, they amplify or add gain to the signal by shaping the RF energy as it is propagated into free space.
Exam with this question: CCNP ENCOR Final Exam
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