• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Information and Communication Technology >Design of a microwave down-converter module
【24h】

Design of a microwave down-converter module

机译：微波下变频器模块的设计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Microwave down-converter modules are the key components in communications, radar and electronic warfare systems. The paper presents the design method of a low noise microwave down-converter module. The parameter of each component could be determined by the related parameter curves of the low noise amplifier, the mixer and the noise figure of the system. So, a list of parts which satisfied the needs could be selected out to complete the design. By using two cascaded low noise amplifies in the front end of the circuit, the low noise performance is fulfilled. A mirror suppression balanced mixer is followed to complete the frequency change, which can reduce the mixer noise effectively. Last, two cascaded intermediate frequency amplifies are putted to match the need of the total power gain. A down-converter for up-1 ink wideband code division multiple access (WCDMA) repeater is designed according to the analysed result, the overall noise figure is less than 0.8 dB, and the total gain is around 66 dB with 0.8 dB ripple under 60 MHz bandwidth.
机译：微波下变频器模块是通信，雷达和电子战系统中的关键组件。本文提出了一种低噪声微波下变频器模块的设计方法。每个组件的参数可以由低噪声放大器，混频器和系统的噪声系数的相关参数曲线确定。因此，可以选择满足需求的零件清单来完成设计。通过在电路的前端使用两个级联的低噪声放大器，可以实现低噪声性能。跟随镜像抑制平衡混频器完成频率变化，可以有效降低混频器噪声。最后，放置两个级联的中频放大器，以匹配总功率增益的需求。根据分析结果，设计了用于上1个墨水宽带码分多址（WCDMA）中继器的下变频器，整体噪声系数小于0.8 dB，总增益约为66 dB，在60以下时纹波为0.8 dB MHz带宽。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号