Which risk arises when an antenna's size significantly deviates from optimal wavelength?

💡 Explanation

A large size mismatch affects impedance matching, initiating excessive standing waves and consequently, substantially raising the reflected power via impedance mismatch because more energy is bounced rather than correctly emitted; therefore reflection increases rather than bandwidth reduction or EMI changes.

• Which outcome occurs when the Haber-Bosch process uses excessively high pressures?
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• Which mechanism causes alternating bright and dark fringes when monochromatic light transmits through a Fabry-Pérot interferometer?
• Which risk increases when transitioning to supersonic speeds?
• Which behavior changes occurs in two cascaded Carnot heat engines when the intermediate temperature increases?
• Which consequence results when excessive repulsive forces overcome attraction in a covalent molecular bond?