混合型开槽同轴布喇格结构的比较研究

发布时间：2018-01-04 17:02

本文关键词：混合型开槽同轴布喇格结构的比较研究　出处：《电波科学学报》2015年06期 　论文类型：期刊论文

【摘要】：基于电磁仿真软件(Computer Simulation Technology,CST)平台,对几种不同开槽形状同轴布喇格结构的频率响应特性分别进行了数值模拟比较研究.结果表明:三角形开槽带宽最窄而矩形开槽带宽最宽;交替混合型开槽时耦合模式的反射率明显提高,而分半混合型开槽时不仅耦合模式的反射率提高,且其带宽也明显变宽,但两种开槽方式时工作模式的反射率和带宽都位于单一开矩形槽和三角形槽之间;叠加混合型开槽克服了单一矩形槽和三角形槽存在奇点和边界突变的缺点,对模式的选择性能优于矩形开槽,反射率和带宽又大于正弦开槽和三角形开槽,仅其谐振频率点有偏移.这些特点有利于同轴布喇格结构的模式选择、散热和工业生产.
[Abstract]:Based on the electromagnetic simulation software (Computer Simulation Technology CST) platform, on several different shape slotted coaxial Bragg structure frequency response characteristics were simulated respectively. The results showed that: a comparative study of the narrow rectangular and triangular slot bandwidth slotted the widest bandwidth; alternate hybrid slot coupled mode reflectivity is obviously improved, and half mixed slot coupled mode not only improve the reflectivity, and the bandwidth is widened significantly, but the two slot way mode reflectivity and bandwidth are located between the single rectangle groove and triangular groove; mixed superposition overcomes the single slotted rectangular groove and triangle groove is singular and the boundary faults of mutation, mode the choice of performance is better than the rectangular slot, reflectivity and bandwidth than the sinusoidal and triangular slot slot, only its resonant frequency offset. These features are It is beneficial to the mode selection of the coaxial Bragg structure, heat dissipation and industrial production.

【作者单位】：三亚学院理工学院;
【基金】：海南省自然科学基金(614252) 海南省教育厅教改项目基金(Hnjg2015-61) 三亚市重点实验室基金(L1305)资助课题
【分类号】：TN814
【正文快照】： 引言由于同轴波导在高功率回旋器件中所展现出的优越特性,基于同轴波导的布喇格结构在光波、集成电路以及微波器件在科技工程界得到广泛应用[1-16],尤其是在回旋自谐振脉塞(Cyclotron Auto-resonance Maser,CARM)、模式耦合以及在毫米、亚毫米波范围内工作的自由电子脉塞(Free

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