Systematic Design of Wideband Bandpass Filters Based on Short-Circuited Stubs and λ/2 Transmission Lines
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Title: | Systematic Design of Wideband Bandpass Filters Based on Short-Circuited Stubs and λ/2 Transmission Lines |
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Authors: | Sánchez-Soriano, Miguel Ángel | Quendo, Cédric |
Research Group/s: | Grupo de Microondas y Electromagnetismo Computacional Aplicado (GMECA) |
Center, Department or Service: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal |
Keywords: | Bandpass filter (BPF) | Microstrip | Resonator | Short-circuited stub | Wideband | Transmission zero |
Knowledge Area: | Teoría de la Señal y Comunicaciones |
Issue Date: | 30-Apr-2021 |
Publisher: | IEEE |
Citation: | IEEE Microwave and Wireless Components Letters. 2021, 31(7): 849-852. https://doi.org/10.1109/LMWC.2021.3076924 |
Abstract: | !In this paper, a new technique to design wideband bandpass filters BPFs is proposed. It is based on the classical filter topology formed by shunt short-circuited stubs connected by transmission lines, where the λ/4 connecting lines are replaced by λ/2 lines. In this way, the connecting lines have a double functionality: to control the coupling between resonators and to add additional poles, increasing the filter order up to 2N -1, where N is the number of short-circuited stubs. In addition, their function as inverters is, theoretically, for all spectrum, avoiding the limitation of the λ/4 lines working as inverters or the coupled-line coupling mechanisms of classical configurations, which are of narrowband nature. Design equations are provided with up to N degrees of freedom, which allows for a proper selection of impedance values for the filter design. As a verification, a 5th-order BPF of fractional bandwidth 50and with a Chebyshev response is implemented, fullfiling the expections and validating, in this way, the proposed approach. |
URI: | http://hdl.handle.net/10045/114699 |
ISSN: | 1531-1309 (Print) | 1558-1764 (Online) |
DOI: | 10.1109/LMWC.2021.3076924 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2021 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. |
Peer Review: | si |
Publisher version: | https://doi.org/10.1109/LMWC.2021.3076924 |
Appears in Collections: | INV - GMECA - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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Sanchez-Soriano_Quendo_2021_IEEE-MWCL_accepted.pdf | Accepted Manuscript (acceso abierto) | 325,06 kB | Adobe PDF | Open Preview |
Sanchez-Soriano_Quendo_2021_IEEE-MWCL_final.pdf | Versión final (acceso restringido) | 560,71 kB | Adobe PDF | Open Request a copy |
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