CAJ | 학술논문

在耦合双间隙腔的基础上，提出了一种双层新型交叉耦合结构的腔体滤波器，利用couple-filter软件分析得出理论的耦合系数，通过在三维仿真软件HFSS建模、仿真和优化，实现了双层同轴腔体带通滤波器的整体设计。仿真结果显示，采用双层4腔的新型多腔滤波器的带宽、带外抑制和插入损耗等主要参数完全可以达到单层4腔滤波器的技术性能。该类新型腔体滤波器具有频带宽、带外抑制好、结构紧凑和形状多样化等多方面优点，将能更好地满足雷达或移动通信基站等各类微波通信系统的要求。
재우합쌍간극강적기출상，제출료일충쌍층신형교차우합결구적강체려파기，이용couple-filter연건분석득출이론적우합계수，통과재삼유방진연건HFSS건모、방진화우화，실현료쌍층동축강체대통려파기적정체설계。방진결과현시，채용쌍층4강적신형다강려파기적대관、대외억제화삽입손모등주요삼수완전가이체도단층4강려파기적기술성능。해류신형강체려파기구유빈대관、대외억제호、결구긴주화형상다양화등다방면우점，장능경호지만족뢰체혹이동통신기참등각류미파통신계통적요구。
On the basis of coupling double-gap cavities, a new multi-cavity filter with two-layer coaxial cavity cross-coupling is proposed in this paper.It utilizes the coupling coefficient analyzed by couple-filter software and the 3D simulation software HFSS procedures of modeling, simulation and optimization to real-ize the integral design of the two-layer coaxial cavity band-pass filter.Simulation results show that the per-formance of band width, out-band suppression and insertion loss of a two-layer filter with 4 cavities have the advantages of that of a single layer filter with 4 cavities.Such new filters with merits of wide frequen-cy band width, satisfactory out-band suppression, compact structure and various shapes would better meet the requirements of microwave communication systems such as radar or mobile communication station.