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基于二极管精确电路模型的183GHz分谐波混频器设计

更新时间:2020-07-10 05:45:38 大小:906K 上传用户:守着阳光1985查看TA发布的资源 标签:二极管混频器 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对亚毫米波混频二极管管对电路模型不够精确的问题,采用场路结合协同分析,将进出二极管的频率信号分类处理,建立了一种应用于亚毫米波分谐波混频器电路的反向并联二极管对精确电路模型。基于获取的管对精确电路模型,建立了全局性的分谐波混频器电路的集总元件等效电路模型,设计并实现了一款183GHz分谐波混频器。测试结果表明混频器在本振频率为92GHz、功率为2mW,射频频率176~192GHz范围内,双边带变频损耗小于6.8dB,等效噪声温度小于800K,在182GHz测得最小双边带变频损耗为4.9dB,与仿真数据吻合较好。

To minimize the inaccuracy of Schottky diode pair circuit model for sub-millimeter wave band mixer, full-wave a- nalysis and circuit simulation were carried out to classify the signals in and out of diodes. Then a more precise modeling of the an- ti-parallel diode pair was proposed and applied to the circuits of sub-millimeter wave sub-harmonic mixers. To enhance the effi- ciency of simulation and optimization, a globally lumped element equivalent circuit of the mixer has been built based on the accu- rate diode model. A 183 GHz sub-harmonic mixer was designed and fabricated. The mixer exhibited less than 6.8 dB double side- band conversion loss and a mixer temperature of lower tha...

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