Design and Implementation of X-band Eight-beam Receiving Module
李佳津 1王鹏毅 1王新1
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作者信息
1. 中国电子科技集团公司第54研究所,石家庄 050081
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摘要
针对X频段多波束有源相控阵系统的高集成、小型化、多波束等需求,设计了一款高集成、小型化的瓦片式八波束接收组件,该组件基于多层印制板技术,纵向实现了众多有源器件以及八套波束合路网络高密度布局,实现了组件的高集成化;针对组件的八波束合成需求,基于Wilkinson功分器的形式设计了一款小型化的高效合路网络,在7.5～9 GHz范围内,其插入损耗小于13 dB,端口间隔离度小于-20 dB,输出驻波比小于1.2,通道间幅相一致性良好;为降低组件内部信号的传输损耗,对组件内部的垂直互联结构进行了建模分析,得到不同结构参数对其传输性能的影响,通过优化结构参数的方法实现信号的低损耗传输;在此基础上对组件进行了加工实现,经测试,在7.5～9 GHz范围内,组件输出通道增益大于18 dB,输出驻波比小于1.5,通道间相位一致性小于±5°,尺寸仅有80 mm × 80 mm × 7.66 mm.
Abstract
Aiming at the requirements of high integration,miniaturization and multi-beam of X-band multi-beam active phased ar-ray system,a highly integrated and miniaturized tile-type eight-beam receiving component is designed.The component is based on multi-layer printed circuit board technology,which realizes the high-density layout of many active devices and eight sets of beam com-bined network verticallyand the high integration of the component.Aiming at the eight-beam synthesis requirement of the module,a miniaturized broadband combining network based on the Wilkinson power divider is designed.With the range of 7.5～9 GHz,the in-sertion loss,isolation between ports,and standing wave ratio are less than 1 dB,-20 dB,and 1.2,respectively.It has a good am-plitude and phase consistency between channels.To reduce the transmission loss of the signal inside the component,the vertical inter-connection structure inside the component is modeled and analyzed,which obtains the influence of different structural parameters on its transmission performance.The structural parameters are optimized to achieve the low loss transmission of the signal.On this ba-sis,the module is fabricated and tested.With the range of 7.5～9 GHz,the output channel gain is greater than 18 dB,the output standing wave ratio and phase consistency between channels of the module are less than 1.5 and±5°,respectively,and the size is on-ly 80 mmX80 mm×7.66 mm.
关键词
高集成/八波束/多层印制板/接收组件/低损耗传输
Key words
high integration/eight beams/multilayer printed circuit board/receiving component/low loss transmission
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