Open AccessModular implementation of transversal filter using transversal matrices and multi‐mode resonators
Author(s) -
Guo ZaiCheng,
Zhu Lei,
Wong SaiWai
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.6141
Subject(s) - transversal (combinatorics) , resonator , filter (signal processing) , modularity (biology) , prototype filter , band pass filter , m derived filter , network synthesis filters , filter design , mathematics , modular design , electronic engineering , control theory (sociology) , topology (electrical circuits) , acoustics , computer science , engineering , physics , mathematical analysis , optics , control (management) , combinatorics , artificial intelligence , biology , computer vision , genetics , operating system
This study, for the first time, presents an attractive property of transversal filters: modularity. That is, for a specified N th‐order transversal filter, the N resonators could be divided into a number of modules and each module comprises arbitrary number and order of resonators, which could be implemented on a multi‐mode resonator. Thus, an N th‐order filter could be synthesised by separately and independently synthesising different modules with lower orders, thus providing great flexibility, simplification and convenience in filter design. This property is realised by taking advantage of the independence between paths of transversal filters, which is guaranteed by the unique array of resonators of transversal filters. A class of transversal filter including bandpass filters and multi‐band filters are synthesised, fabricated, and measured. The synthesised results, along with the good measured results, verify the validity of the modularity property of transversal filters.