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← ScienceWhich consequence results when a power amplifier designed for 2.4 GHz Wi-Fi transmits at 5.2 GHz?
A)Increased reflected power at amplifier✓
B)Enhanced antenna radiation efficiency
C)Decreased amplifier harmonic distortion
D)Improved impedance matching to cables
💡 Explanation
Increased reflected power occurs because the impedance matching network is optimized for 2.4GHz, but not 5.2GHz. Impedance mismatch causes standing waves, therefore signal reflection increases severely rather than the intended power transfer given design constraints.
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