This work presents a compact dual-band bandpass filter (BPF) based on stub-loaded rectangular loop stepped impedance resonator (SLRLSIR). The proposed SLRLSIR consists of two outer open-circuited and two inner open-circuited stubs, which are designed to the central sides of the rectangular loop resonator. Owing to its symmetry, even-and odd-mode analysis methods are applied to deduce the equivalent-circuit equations and to justify the structural design. The second passband can be easily tuned by changing the two inner open-circuited stubs when the first passband is fixed at a desirable frequency. The upper stopband is improved by a pair of additional open-circuited stubs stepped impedance resonators at the I/O ports. Transmission zeros are generated between passbands and stopbands. A SLRLSIR prototype dual-band BPF with central frequencies of 2.42/4 GHz is fabricated and systematically studied. The measurement results agreed well with the simulation results.
%0 Journal Article
%1 noauthororeditor
%A Dembele, Salif Nabouna
%A Zhang, Ting
%A Bao, Jingfu
%A Bukuru, Denis
%A Khan, Muhammad Ammar
%D 2019
%J International Journal of Electromagnetics ( IJEL )
%K (BMFL) (BPF) (SLRLSIR) (TZ) Bandpass Bended Dual-band Stub-loaded Transmission feed filter impedance line loop microstrip rectangular resonator stepped zero
%N 2
%P 1 to 11
%T Compact Dual-Band Bandpass Filter Based on Stub-Loaded Rectangular Loop Stepped Impedance Resonator
%U https://www.airccse.com/ijel/papers/2118ijel03.pdf
%V 1
%X This work presents a compact dual-band bandpass filter (BPF) based on stub-loaded rectangular loop stepped impedance resonator (SLRLSIR). The proposed SLRLSIR consists of two outer open-circuited and two inner open-circuited stubs, which are designed to the central sides of the rectangular loop resonator. Owing to its symmetry, even-and odd-mode analysis methods are applied to deduce the equivalent-circuit equations and to justify the structural design. The second passband can be easily tuned by changing the two inner open-circuited stubs when the first passband is fixed at a desirable frequency. The upper stopband is improved by a pair of additional open-circuited stubs stepped impedance resonators at the I/O ports. Transmission zeros are generated between passbands and stopbands. A SLRLSIR prototype dual-band BPF with central frequencies of 2.42/4 GHz is fabricated and systematically studied. The measurement results agreed well with the simulation results.
@article{noauthororeditor,
abstract = {This work presents a compact dual-band bandpass filter (BPF) based on stub-loaded rectangular loop stepped impedance resonator (SLRLSIR). The proposed SLRLSIR consists of two outer open-circuited and two inner open-circuited stubs, which are designed to the central sides of the rectangular loop resonator. Owing to its symmetry, even-and odd-mode analysis methods are applied to deduce the equivalent-circuit equations and to justify the structural design. The second passband can be easily tuned by changing the two inner open-circuited stubs when the first passband is fixed at a desirable frequency. The upper stopband is improved by a pair of additional open-circuited stubs stepped impedance resonators at the I/O ports. Transmission zeros are generated between passbands and stopbands. A SLRLSIR prototype dual-band BPF with central frequencies of 2.42/4 GHz is fabricated and systematically studied. The measurement results agreed well with the simulation results.},
added-at = {2020-02-06T10:26:08.000+0100},
author = {Dembele, Salif Nabouna and Zhang, Ting and Bao, Jingfu and Bukuru, Denis and Khan, Muhammad Ammar},
biburl = {https://www.bibsonomy.org/bibtex/2ae0a8245e2cabd6f2577f7392f66790f/crishmedical},
interhash = {6a6f8fd933048aad9501a3b24ed4c71b},
intrahash = {ae0a8245e2cabd6f2577f7392f66790f},
journal = {International Journal of Electromagnetics ( IJEL )},
keywords = {(BMFL) (BPF) (SLRLSIR) (TZ) Bandpass Bended Dual-band Stub-loaded Transmission feed filter impedance line loop microstrip rectangular resonator stepped zero},
language = {English},
month = {February},
number = 2,
pages = {1 to 11},
timestamp = {2020-02-06T10:26:08.000+0100},
title = {Compact Dual-Band Bandpass Filter Based on Stub-Loaded Rectangular Loop Stepped Impedance Resonator
},
url = {https://www.airccse.com/ijel/papers/2118ijel03.pdf},
volume = 1,
year = 2019
}