CAJ | 학술논문

针对传统同轴腔体双频合路器使用谐振腔耦合级联的方式，导致合路器结构复杂，装配调试难度大，体积大，成本高等缺点。本文提出了一种带SIR结构的微带宽带双频合路器设计方案。该方案采用在盒体内固定一个介质基板，介质基板上设置一个低通滤波器和一个带阻滤波器将其进行合路。其中，带阻滤波器采用SIR结构。可使实物尺寸减小。实验测量结果与仿真结果基本吻合，结果表明该新型结构可使通带之间有较高的隔离度，具有小尺寸、插损低，易生产和易调试等优点。
침대전통동축강체쌍빈합로기사용해진강우합급련적방식，도치합로기결구복잡，장배조시난도대，체적대，성본고등결점。본문제출료일충대SIR결구적미대관대쌍빈합로기설계방안。해방안채용재합체내고정일개개질기판，개질기판상설치일개저통려파기화일개대조려파기장기진행합로。기중，대조려파기채용SIR결구。가사실물척촌감소。실험측량결과여방진결과기본문합，결과표명해신형결구가사통대지간유교고적격리도，구유소척촌、삽손저，역생산화역조시등우점。
In view of problem that coaxial-cavity dual-band combiner couples by resonator, which causes that the structure of combiner is complex, the assembly and debugging is difficult, bulky, and high cost. This paper proposes a designing scheme of microstrip broadband dual-band combiner based on SIR. In the box, a dielectric substrate is fixed, on which a die low-pass filter and a band stop filter based on SIR are used to combine. The physical size can be reduced. Experimental results and simulation results are basically consistent with each other. The results show that the new structure allows passband to have high isolation, and it has the advantages, such as smaller volume, lower insertion loss, being easier to manufacture and test.