基于L型电阻网络匹配的ROF发射模块设计
Design of ROF Transmission Module Based on L-type Resistance Network Matching
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摘要: 本文介绍了一种基于ROF技术的多制式、宽频带的光发射模块的研制方案.该模块采用数字光模块的QSFP接口实现多通道传输, 通过L型电阻匹配网络实现软硬板之间的阻抗匹配, 并且对模块链路中存在的信号完整性问题利用全波仿真工具(HFSS)进行了优化设计与研究.测试结果表明, 该方案可以保证在DC-6 GHz保证很好的增益平坦度.Abstract: This paper introduces a design scheme of multi-standard and broadband light emission module based on ROF technology. The module uses QSFP interface to realize multi-channel transmission. The impedance matching of rigid-flex PCB interconnection is realized by L-type resistance matching network, and the signal integrity problem in the module link is optimized and studied by using full-wave simulation tool (HFSS). The test result shows that the module can guarantee a good gain flatness at DC-6 GHz.