antenna principle

Question

Dipole antenna length about half of wavelength improves:

RankGuru · Accepted Answer

A **Half-wave Dipole** antenna is most efficient because it acts as a resonant structure.
- When the length matches $\lambda/2$, a standing wave is formed on the antenna.
- This leads to maximum current oscillations and thus maximum radiation of EM waves into space. Non-resonant antennas have poor radiation resistance and high loss.

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antenna principle

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