If a radio antenna's length is significantly smaller than the wavelength of the emitted electromagnetic wave, which consequence follows regarding radiation efficiency?

💡 Explanation

A small antenna compared to the wavelength causes a significant impedance mismatch, because it results in a large reactive component and low radiation resistance, therefore reducing radiation efficiency rather than enhancing it or primarily affecting polarization or radiation patterns.

• Why does signal distortion occur when transmitting an audio signal through a nonlinear amplifier, despite the input signal being a pure sine wave?
• An X-ray beam is directed at a crystalline powder of titanium dioxide (TiO2). Which outcome regarding the diffraction pattern emerges due to variations in crystal orientation?
• If a strong external electric field is applied to carbon nanotubes functionalized with highly electronegative fluorine atoms, which consequence follows?
• A sample of Potassium-40 undergoes beta decay. Which outcome increases given the constant decay energy release?
• Why does the latent heat of vaporization decrease as a liquid approaches its critical point?
• An experimental fusion reactor uses deuterium-tritium fuel. Which effect dominates when the plasma's ion temperature increases, assuming confinement time remains constant?