Design of tri-band bandpass filter based on the interdigital structure and rectangular resonator for LTE and radar applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F25%3A43976672" target="_blank" >RIV/49777513:23220/25:43976672 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nature.com/articles/s41598-025-20513-9" target="_blank" >https://www.nature.com/articles/s41598-025-20513-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-20513-9" target="_blank" >10.1038/s41598-025-20513-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Design of tri-band bandpass filter based on the interdigital structure and rectangular resonator for LTE and radar applications

Popis výsledku v původním jazyce

This paper presents the design and implementation of a novel tri-band bandpass filter (BPF) using interdigital structures combined with rectangular resonators to achieve compactness and high performance. The proposed BPF effectively addresses challenges such as size reduction, high isolation between passbands, wide stopband and low insertion loss, which are critical for modern telecommunications applications. First, a single-band BPF is designed based on high-impedance coupled lines and selecting the best line values, then by adding resonators, the second and third bands are formed. The proposed filter is analyzed by an LC equivalent circuit. The filter achieves three distinct passbands at central frequencies of 2.12 GHz, 2.79 GHz, and 4.185 GHz. Key design features include the use of interdigital structures, high-impedance coupled lines and the creation of transmission zeros to improve sharpness and isolation between passbands. The proposed filter is fabricated and the good agreement of the measurement results with simulation results, making it suitable for applications in LTE, and radar applications. The compact size and efficient performance of the proposed BPF demonstrate its potential for integration into modern telecommunication devices, enhancing their overall efficiency and functionality.

Název v anglickém jazyce

Design of tri-band bandpass filter based on the interdigital structure and rectangular resonator for LTE and radar applications

Popis výsledku anglicky

This paper presents the design and implementation of a novel tri-band bandpass filter (BPF) using interdigital structures combined with rectangular resonators to achieve compactness and high performance. The proposed BPF effectively addresses challenges such as size reduction, high isolation between passbands, wide stopband and low insertion loss, which are critical for modern telecommunications applications. First, a single-band BPF is designed based on high-impedance coupled lines and selecting the best line values, then by adding resonators, the second and third bands are formed. The proposed filter is analyzed by an LC equivalent circuit. The filter achieves three distinct passbands at central frequencies of 2.12 GHz, 2.79 GHz, and 4.185 GHz. Key design features include the use of interdigital structures, high-impedance coupled lines and the creation of transmission zeros to improve sharpness and isolation between passbands. The proposed filter is fabricated and the good agreement of the measurement results with simulation results, making it suitable for applications in LTE, and radar applications. The compact size and efficient performance of the proposed BPF demonstrate its potential for integration into modern telecommunication devices, enhancing their overall efficiency and functionality.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

001597098200017

EID výsledku v databázi Scopus

2-s2.0-105019054500