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← ScienceWhich outcome occurs when signal frequency exceeds a microstrip patch antenna's bandwidth?
A)Increased return loss at input✓
B)Reduced dielectric substrate heating
C)Enhanced antenna gain overall
D)Minimization antenna polarisation effects
💡 Explanation
Increased return loss results because impedance mismatch causes signal reflection aka *impedance mismatch*. Wave interference degrades signal transmission; therefore, antenna performance suffers, rather than improved performance under different bandwidth parameters.
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