平行耦合微带带通滤波器的设计与仿真

随着5G等无线通信技术的发展和应用,无线通信设备的高性能、微型化、低成本、便于设计等亮点受到了越来越广泛的关注。滤波器是无线通信系统的重要构成部分之一,其性能的优劣很大程度上决定了通信系统的工作性能。平行耦合微带滤波器具有体积小、光刻处理简单、成本低、精度高、易于集成、工作频率范围宽等优点。基于平行耦合微带线理论,设计了一款微带带通滤波器。该滤波器通带范围:f=3.0~3.1 GHz,频率通带带内插损<1 dB。使用ADS2008微波仿真软件对其进行了仿真与优化。仿真结果表明:该方法与传统的设计方法相比,不但可以大量减少工作量,缩短设计周期,并且能提高器件的准确性与稳定性。

Design and Simulation of Parallel Coupled Microstrip Bandpass Filter

With the development and application of 5G and other wireless communication technologies,the high performance,miniaturization,low cost and convenient design of wireless communication equipment have attracted more and more attention.Filter is one of the important components of wireless communication system,and its performance largely determines the performance of the communication system.The parallel coupled microstrip filter has the advantages of small size,easy lithography processing,low cost,high precision,easy integration and a wide operating frequency range.Based on the parallel coupled microstrip line theory,a microstrip bandpass filter with frequency range of 3.0~3.1 GHz and the band loss of less than 1 dB is designed.The ADS2008 microwave simulation software is used to simulate and optimize the system.It is showed that compared with the traditional design method,the proposed method can not only reduce the workload and shorten the design cycle,but also improve the accuracy and stability of the device.