Numerical Design of Non-Reciprocal Bandpass Filters With the Aid of 3D Coupling Matrix for 5G Bands

被引：13
作者：
Dutta, Prantik [1 ]
Kumar, Gande Arun [1 ]
Ram, Gopi [1 ]
机构：
[1] Natl Inst Technol Warangal, Dept Elect & Commun Engn, Warangal 506004, Andhra Pradesh, India
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2022年 / 69卷 / 07期
关键词：
Resonators; Couplings; Harmonic analysis; Mathematical models; Transmission line matrix methods; Resonant frequency; Three-dimensional displays; Bandpass filter (BPF); filter; isolator; non-reciprocal bandpass filters (NR-BPF); non-reciprocity; spatio-temporal modulation (STM); time-varying transmission line (TVTL); varactor;
D O I：
10.1109/TCSII.2022.3157644
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this brief, numerical analysis on spatio-temporally modulated (STM) non-reciprocal bandpass filters is methodically demonstrated to corroborate the underlying phenomenon. The concept of a 3D coupling matrix is illustrated for the first time, which provides an analytical insight into the distribution of RF energy among the intermodulation (IM) products generated in time-modulated resonators. Flagship equations based on coupling matrix are proposed that bypass the tedious analysis of spectral admittance and ABCD matrices. These equations can be modified to design any ordered filters and with varying cross-coupling instances. The experimental validation confirms the accuracy of the numerical equations, and the model can be utilized to further the development in this burgeoning yet eccentric research domain.
引用
收藏
页码：3334 / 3338
页数：5
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