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基于倒扣技术的190~225 GHz肖特基二极管高效率二倍频器

Keywords: GaAs肖特基二极管 二倍频器 太赫兹 效率

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Abstract:

基于分立式GaAs肖特基势垒二极管, 研制出了190~225GHz高效率二倍频器.50μm厚石英电路利用倒扣技术, 实现二极管的良好散热、可靠的射频信号及直流地.通过数值分析方法, 二极管非线性结采用集总端口模拟, 提取二极管的嵌入阻抗, 以设计阻抗匹配电路.在202GHz, 测得最高倍频效率为9.6%, 当输入驱动功率为85.5mW时, 其输出功率为8.25mW;在190~225GHz, 测得倍频效率典型值为7.5%;该二倍频器工作频带宽、效率响应曲线平坦, 性能达到了国外文献报道的水平

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