平面波照射下微带电路的电磁特性  

Electromagnetic Characteristics of Microstrip Circuits Under Plane Wave Illumination

作　　者：李守荣[1] 李莹[1] 孙震[1] 王帆[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京102206

出　　处：《河北师范大学学报（自然科学版）》2013年第2期153-159,共7页Journal of Hebei Normal University：Natural Science

基　　金：国家科技支撑计划(2011BAF03B02);科技部国际科技合作项目(2011DFR00780)

摘　　要：基于十字结微带结构的等效电路,建立了平面波照射下不连续微带电路的电磁敏感性模型.利用场耦合理论计算入射平面波在微带电路终端产生的等效源表达式,并分别对十字结微带结构和单级放大器等电路的电磁敏感性模型进行计算和仿真验证.结果显示,仿真结果与测量结果具有很好的一致性,且仿真时间短,有助于设计者更加快速准确地预测电磁干扰对不连续微带电路的影响.Based on the equivalent circuit of the microstrip cross bend, the electromagnetic sensitivity model of discontinuous microstrip circuits with the presence of a uniform plane incident wave is established,.First,the analytical expressions are modeled as equivalent voltage and current sources for discussing the global effect of the incident plane wave on the associated interconnects. Then,these field-induced equivalent source expressions are incorporated into ADS circuit solver,and a fast model is established for analyzing the output responses of microstrip circuits, such as the cross bend and the single-stage amplifier. The corresponding simulated results from the proposed model are also validated by comparing the results from the measurements. With the merit of short simulation time, the proposed approach would be an efficient method to solve the electromagnetic susceptibility problems associated with the discontinuous microstrip circuits.

关 键 词：电磁干扰 电磁敏感性 微带电路 互连线 

分 类 号：O441[理学—电磁学] TM12[理学—物理]