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Investigation of Ultra-Wideband Microwave Generation Based on Photoconductive Semiconductor Switches
Author(s): SHI Wei, JI Weili, ZHAO Wei
Pages: 1891-
1893
Year: 2004
Issue:
11
Journal: ACTA ELECTRONICA SINICA
Keyword: 光电导开关; 超宽带辐射; 微波源;
Abstract: 用全固态绝缘结构的横向型半绝缘GaAs光电导开关,在高重复频率飞秒激光脉冲触发下产生超快电脉冲串,经过微带同轴过渡连接至宽带微波天线进行了超宽带电磁辐射和接收的实验,测试了辐射波形及频谱分布,得到了上升时间为200ps、脉宽500ps、重复频率82MHz、辐射频带宽度达6.0GHz以上的电磁波,分析了用光电导开关进行宽带辐射的机理和特性.
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