| 摘要: |
| 首先针对VHF波段宽带连续波大功率固态功放组件的整体指标要求，分析主要指标间的关系和相互制约性，对指标之间相互制约问题折中考虑，优化设计。既能实现大功率、线性化指标要求，又解决了高热耗下的散热难题，同时满足组件的小型化要求。然后分别从功能模块化设计、电磁兼容设计、热设计等方面进行了分析，从功率放大方式的选择和结构布局安排等方面进行了较为详细的介绍。研制出一种双通道VHF波段宽带连续波大功率固态功放组件，满足机载平台对固态功放组件体积和重量的严格要求。最后给出了功放组件的实际测试结果，表明该组件完全满足总体指标要求。 |
| 关键词: 固态功放组件 LDMOS功率管 热设计 电磁兼容设计 |
| DOI：10.3969/j.issn.1672-2337.2018.03.014 |
| 分类号:TN721；TN722.3+3 |
| 基金项目: |
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| Design of VHF Band Broadband Continuous Wave High Power Dual-Channel Amplifier |
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ZHENG Zhiqian, YANG Zhigang
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The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China
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| Abstract: |
| Firstly, aiming at the overall specifications of VHF band broadband continuous wave high power dual-channel amplifier, the relations and constraints among the overall specifications are analyzed. Based on the trade-off of the constraints, the optimal design is conducted, which not only meets the specification requirements of high-power and linearity, but also meets the needs of thermal dissipation and structural miniaturization. Secondly, the analysis is made respectively from modular design, EMC design and thermal design. The power amplifier selection and structural configuration are described in detail. A VHF band broadband continuous wave high power dual-channel amplifier is developed, which meets the stringent requirements of volume and weight of the solid-state power amplifier for the airborne platform. Finally, the actual test results are given, which show that the amplifier fully meets the requirements of the overall specifications. |
| Key words: solid-state power amplifier LDMOS power tube thermal design EMC design |
