【作者】 绳宇洲； 雷振亚；

【Author】 Sheng Yuzhou;Lei Zhenya;School of Electronic Engineering,Xidian Univ.;

【机构】 西安电子科技大学电子工程学院；

【摘要】 提出了一种阻带具有单个传输零点的带通滤波器的设计方法,基于低温共烧陶瓷（LTCC）技术实现,可满足移动通信滤波器高性能、小型化的要求。在阻带的低端近端引入传输零点以提高带外抑制。借助三维仿真软件,进行结构、指标的优化仿真,设计了一款尺寸为4.2mm×2.4mm×0.64mm的LTCC滤波器,其中中心频率f₀=2.8GHz,带宽70MHz,通带内损耗不大于3dB,在2.45GHz处有传输零点。更多还原

【Abstract】 A novel 3D low-temperature co-fired ceramic(LTCC) band-pass filter with one transmission zero is introduced to meet mhe miniaturization and high performance requirement of mobile communication system.A transmission zero at low frequency was introduced to enhance the stopband rejection.Then,a LTCC filter with size of 4.2mm×2.4mm×0.64 mm is designed with the help of 3D-simulation software.The center frequency of the filter is 2.8GHz,and the bandwidth is 70 MHz.The loss in the bandpass is no more than 3dB.This filter has a transmission zero locate at 2.45 GHz.更多还原