基于声电非线性耦合的电磁防护器件及系统
By using a nonlinear acoustic-electric coupling device to modulate charge carriers with the piezoelectric field associated with the piezoelectric substrate and surface acoustic waves, the problems of limited power tolerance and easy breakdown of semiconductor limiters are solved, and effective protection against high-power electromagnetic signals is achieved, thereby improving the electromagnetic environment adaptability of electronic information systems.
CN121816065BActive Publication Date: 2026-07-17NAT UNIV OF DEFENSE TECH +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NAT UNIV OF DEFENSE TECH
- Filing Date
- 2026-03-12
- Publication Date
- 2026-07-17
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Figure CN121816065B_ABST
Abstract
本发明属于电磁防护技术领域，涉及一种基于声电非线性耦合的电磁防护器件及系统，通过器件结构改进设计，规避了使用半导体开关效应，而是通过将微波的电磁物理场转换到声表面波的压电物理场，由声表面波的伴生压电场调制载流子，利用载流子速度饱和效应与沟道夹断效应，实现声电非线性耦合，从而达到电磁防护的效果，避免了传统半导体限幅器易击穿的缺点，所能防护的微波信号功率更高，不存在被大功率微波辐射时因电压过大导致击穿且击穿后不可恢复的问题，提高了电子信息系统的电磁环境生存能力。
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