Electromagnetic Wave Heating Antenna for Rapid Resonance Matching

The patent replaces the conventional reflected power control method with phase difference control. Instead of measuring reflected power magnitude (which requires time-consuming detection), the system measures the phase difference between incident and reflected waves. This phase information can be obtained and processed much faster, enabling rapid frequency adjustment while maintaining accurate resonance matching. The phase detector and arithmetic processing unit compute phase difference instantaneously, eliminating the detection time bottleneck of reflected power methods.

The patent introduces phase difference information as an intermediary parameter to achieve frequency control. Rather than directly controlling frequency based on reflected power (a slow process), the system uses phase difference as an intermediate measurement that responds quickly to frequency deviations. The arithmetic processing unit processes this phase information to generate frequency adjustment signals, creating a fast feedback loop that maintains resonance condition without the delays inherent in reflected power detection.

The patent replaces slow reflected power-based frequency sweeping with fast phase-difference-based frequency locking. When objects change, the system rapidly detects phase differences and adjusts frequency in real-time, maintaining resonance condition without prolonged transitions. This enables continuous adaptation to different objects while preventing efficiency loss during frequency changes.

The patent ensures continuous resonance condition maintenance through rapid phase-based frequency adjustment. Instead of allowing efficiency to drop during frequency transitions between objects, the system continuously monitors phase difference and makes instantaneous frequency corrections. This keeps the heating process continuously optimized across object changes, eliminating idle or inefficient periods.