摘要
首先分析了宽带滤波器的制作难点,利用同轴腔体的形式实现了一款宽带带通滤波器,并通过加载电容的原理实现了滤波器的小型化。最后通过仿真软件CST设计了中心频率4.24GHz,带宽为44.3%的宽带滤波。结果表明,滤波器实物在整个频带内电压驻波比、带外抑制良好,满足手持雷达装置使用要求。
The fabricating difficulties of the broadband filter were theoretically analyzed and a broadband bandpass filter was realized by the form of coaxial cavity.The miniaturization of the filter was achieved by the principle of loading capacitance.Finally,the broadband filter with the center frequency of 4.24 GHz and bandwidth of 44.3%was designed through the simulation software CST.The results showed that the designed filter had good performances of voltage standing wave ratio and out-of-band rejection,which could well meet the requirements of the handheld radar device.
出处
《压电与声光》
CAS
CSCD
北大核心
2016年第2期253-256,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(61021061
51272036
51002021
61131005)
国际合作基金资助项目(2012DFR 10730
2013HH0003)
