Design of compact dual‐mode dual‐band SIW filter with independent tuning capability

Abstract

This work reports on a novel design of a compact and tunable filter in substrate integrated waveguide technology. The proposed dual‐band filter is based on resonators that exploit two resonating modes excited in a single SIW cavity. The structure is designed in such a way that the two bands of dual‐band filter each having two poles can be tuned independently. This property of the proposed filter makes it a suitable choice for multistandard applications with fine tuning as envisaged for future generation wireless technologies. The measured results of the fabricated prototypes validate the proposed design concept.

Design of Micro-strip Symmetrical Dual-band Filter Based on Wireless Sensor Network Nodes

“…In recent years, scholars in various countries have carried out in-depth research and proposed various design methods to solve the two core problems in the design of multi-band micro-strip filters [14][15][16][17][18][19][20]: Firstly, multi-point frequency selection can be realized, multi-frequency can work in parallel, and each central frequency point has a certain capacity bandwidth; secondly, the signals in adjacent frequency bands must be effectively isolated and can not interfere with each other, and the out-of-band rejection performance of the filter is reliable. There are two main methods for designing multi-band filters [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]: Firstly, based on the combination of multi-band filters, including the cascade of broadband filters and notch filters, and the parallel connection of multiple filters in different frequency bands; secondly, based on the parasitic frequency of resonators, a multi-band filter is designed.…”

A Novel Three-Parameter Fully Tunable Bp Filter

“…The study of fully tunable filters is of great significance for current spectrum resources and intense electronic countermeasures. Tunable parameters of a current tunable filter mainly include center frequency [1,2], bandwidth [3,4], transmission zero [5,6] and order [7], The research of highperformance tunable filter is beneficial for selecting the required signal frequency from complex and variable spectrum environment, flexibly suppressing various interferences, realizing adaptive regulation of the system, achieving miniaturization and integration effects, and reducing filter cost.…”