Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when a microwave antenna corrodes?
A)Reflected power at feedpoint rises✓
B)Bandwidth of radiated signal decreases
C)Antenna gain characteristics improve
D)Polarization becomes increasingly circular
💡 Explanation
Antenna corrosion increases surface resistance, causing impedance mismatch because the **skin effect** dictates conductivity concentrates in the outer layers; therefore, more power reflects back, rather than radiating efficiently, and bandwidth characteristics are unaffected.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which outcome occurs when positive displacement pump suction lift exceeds vapor pressure during glycol coolant circulation?
- Which issue arises during robot arm movement when 'Inverse Kinematics' solver concentrates calculations near a singularity?
- Which behavior results when a refrigerant with high global warming potential (GWP) leaks into the atmosphere?
- Which outcome occurs when a PLC controlling a chemical reactor's temperature-regulating solenoid fails to de-energize after reaching setpoint?
- Which risk increases in a steel structure when heat-affected zone (HAZ) welding causes localized rapid heating?
- Which risk increases when fuel injectors remain open after an engine cylinder's piston reaches top dead center?
