=================================DOI:10．13290/j．cnki．bdtjs．2023．03．003March2023SemiconductorTechnologyVol．48No．3199一种3D打印的高次模带通滤波扭波导王文军1，张翊2，徐军2(1．中国电子科技集团公司第十三研究所，石家庄050051;2．电子科技大学物理学院，成都611730)摘要:为了满足微波电路小型化、集成化的需求，提出了一种基于高次模的滤波扭波导。该滤波扭波导能同时实现带通滤波响应和极化旋转，其谐振单元采用基于TE102模的椭圆柱谐振器，获得了更高的无载Q值，降低了对加工误差的敏感度。考虑到该扭波导不规则的几何结构，采用非金属3D打印技术制备并将其表面金属化，与对应的铜制元件相比，该元件质量显著减轻。设计的滤波扭波导的中心频率为15GHz，通带宽度为300MHz，回波损耗为20dB，测试和仿真结果具有较好的一致性。该滤波扭波导可有效减小元件体积，减小多器件级联的额外损耗。关键词:滤波器;扭波导;3D打印;一体制造;高次模中图分类号:TN62;TN713.5文献标识码:A文章编号:1003－353X(2023)03－0199－05A3DPrintedHigh-OrderModeTwistwithBandpassFilteringResponseWangWenjun1，ZhangYi2，XuJun2(1．The13thResearchInstitute，CETC，Shijiazhuang050051，China;2．SchoolofPhysics，UniversityofElectronicScienceandTechnologyofChina，Chengdu611730，China)Abstract:Fortherequirementofminiaturizationandintegrationofmicrowavecircuits，afilteringtwistbasedonhighordermodewasproposed．Thefilteringtwistprovidesthebandpassfilteringresponseandpolarizationrotationsimultaneously．EllipticalcylinderresonatorsoperatinginTE102modewasem-ployedtoobtainahigherunloadqualityfactorandabetterfabricationtolerance．Consideringthegeo-metriccomplexibility，thetwistwasfabricatedbyusingnon-metallic3Dprintingfollowedbymetallizationofthesurface．Comparedwithacopperone，the3Dprintedfilteringtwistissubstantiallylighter．Thefilteringtwistwithacenterfrequencyof15GHz，abandwidthof300MHzandareturnlossof20dBwasdesigned．Themeasurementandsimulationresultshavegoodconsistency．Thedesignofthefilteringtwistreducesthesizeofthecomponentandeliminatesadditionallossescausedbymultiplecascadeddevicesarchitecture．Keywords:filter;twist;3Dprinting;integratedmanufacturing;high-ord...
