| 摘要: |
| 为了提高LCT亚毫米波望远镜的性能，本研究设计了一个8输出端口的本振分配网络。该网络以3dB的6分支波导定向耦合器为基础构建，确保了8个端口的功率输出均衡。仿真结果显示，在225-235 GHz的频率范围内，各输出端口的传输系数差异不超过1dB，回波损耗低于-20dB，而端口间的隔离度也低于-15dB。这些性能指标均符合LCT亚毫米波望远镜的应用要求。 |
| 关键词: LCT 望远镜，亚毫米波，功分器，分支线波导定向耦合器 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| Design of Local Oscillator Distribution for Multi-pixel Superconducting Mixer for LCT Submillimeter Telescope |
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liqiansen, caodonghong, jiyi, wuxiangnong, zhangyiwen
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Shanghai Normal University
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| Abstract: |
| A simulation method was employed to design an 8-output port local oscillator (LO) distribution network for LCT submillimeter telescope. The LO distribution network uses a 3 dB 6-branch waveguide directional coupler as the core unit, achieving equal power distribution across eight output ports. Simulation results show that in the frequency range of 225-235 GHz, the transmission coefficient difference among output ports is less than 1 dB, the return loss remains below -20 dB, and the port-to-port isolation is better than -15 dB. These specifications fulfill the operational requirements of the LCT submillimeter telescope. |
| Key words: LCT telescope, Submillimeter wave, Power divider, Branch waveguide directional coupler |
