摘要
采用高频结构模拟软件模拟1/4λ同轴型带通微波陶瓷滤波器结构,讨论了耦合槽直径对滤波器的性能如带宽、插损、带内波动、阻带抑制等的影响。结果表明,随着耦合槽直径的增大,滤波器中心频率、插入损耗和阻带抑制减小,3dB带宽增大。讨论结果表明,可通过调整滤波器耦合槽直径的大小,得到理想性能的介质滤波器。
In this study the relation between the structure parameter (such as coupling aperture diameter d) of 1/4λ microwave band-pass dielectric filter and its final microwave properties(such as bandwidth, passband ripple , insertion loss and stop-band attenuation ) is discussed . The results show that with the increasing of coupling aperture diameter, center frequency, insertion loss and stop-band attenuation decrease while 3 dB band width increase. According to the results discussed above ,an ideal dielectric filter can be acquired by changing the coupling aperture diameter.
出处
《压电与声光》
CAS
CSCD
北大核心
2005年第3期303-305,共3页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(60001002)
十五国家"八六三"高科技基金资助项目
湖北省科技攻关基金资助项目
关键词
高频结构模拟
介质谐振器
同轴型带通滤波器
high frequency structure simulation
dielectric resonator
coaxial band-pass filter