ABSTRACT

A compact LTCC BPF exploiting six SIW cavities with sharp passband skirt for 5 G communication is proposed. The filter has coplanar waveguide (CPW) as input/output structures and six cavities SIW resonators with mixed coupling, and the size of the filter has been reduced because of 3D integration. The size of this filter is compact with 7.0 × 3.8 × 1.2 mm³, which is miniaturized enough to be integrated in the subsystem. The simulation and measurement results demonstrate the proposed BPF passband centers at the frequency of 28.0 GHz with a 3 dB bandwidth of 6.5% and the filter has wide application in 5 G wireless communication.

摘要

提出了一种紧凑的 LTCC BPF，它利用 6 个 SIW 腔和尖锐的通带裙边进行 5G 通信。该滤波器采用共面波导（CPW）作为输入/输出结构和混合耦合的六腔SIW谐振器，并且由于3D集成而减小了滤波器的尺寸。该滤波器的尺寸紧凑，为 7.0 × 3.8 × 1.2 mm ³，足够小型化，可以集成到子系统中。仿真和测量结果表明，所提出的 BPF 通带中心频率为 28.0 GHz，3 dB 带宽为 6.5%，该滤波器在 5G 无线通信中具有广泛的应用。