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← ScienceWhich detrimental outcome arises when RF amplifier input impedance mismatches antenna impedance?
A)Increased reflected power and standing waves✓
B)Amplifier transistor overheating from excessive voltage
C)Reduced signal bandwidth with limited modulation
D)Oscillator phase noise exceeding regulatory spectral limits
💡 Explanation
Increased reflected power occurs because impedance mismatching causes wave reflection preventing maximum power transfer. The reflection mechanism, caused by differing impedances creates standing waves; therefore energy rebounds, rather than being radiated increasing SWR, rather than thermal runaway in transistors.
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