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← ScienceWhich consequence results when a SAW filter's substrate cracks?
A)Amplitude nulling becomes asymmetric✓
B)Harmonic frequency generation ceases
C)Distributed inductance sharply increases
D)Capacitance load impedance decreases
💡 Explanation
Fractures in the piezoelectric crystal disrupt the acoustic waves, causing asymmetric reflections due to changed propagation velocities; therefore, amplitude nulling loses symmetry, rather than inductance alteration or impedance decrease, because the filter elements remain largely intact.
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