Hybrid Network Based Broadband Diplexer Technology for Terahertz Space Exploration Systems
Authors:
- Jiangqiao DingJiangqiao Ding
- Shenzhou JiangSJShenzhou Jiang
- Jiasen ChengJCJiasen Cheng
- Luying JiangLJLuying Jiang
- Haotian ZhuHZHaotian Zhu
- 1 January 2026
- journal article
- Published by National Space Science Center, Chinese Academy of Sciences in Chinese Journal of Space Science
- Vol. 46 (3) , 776-9
Abstract
太赫兹空间探测系统正向多通道、多谱段和超宽带方向快速发展. 提出基于波导混合网络型的WR-4频段全频带双工器, 用于双频段固态系统中本振信号的合路泵浦. 该双工器基于混合网络的防反射、高隔离耦合等特性, 结合高阶数低通滤波器级联实现, 整体结构鲁棒, 且易于计算机数控(CNC)制备并系统集成. 研究内容主要包括WR-4全频带覆盖混合网络型双工器的原理设计, 分立单元器件混合器、滤波器的电路设计, 混合网络型双工器的电路综合、优化及其E面分裂式CNC铣削加工. 实测结果表明, 该WR-4频段双工器能够实现全频带划分, 含170～210 GHz和210～260 GHz两个通道, 通道内插损低至–1.5 dB和–1 dB, 其中一个通道的隔离高达50 dB, 所有测试结果与仿真数据高度一致. 此外, 该固态双工器电路具有易结构加工、易系统集成、易通道扩展和易频率拓展等特点.Keywords
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