Circuit Modelling of Bandpass/Channel Filter with Microstrip Implementation

Nwajana, Augustine O.

doi:10.52549/ijeei.v8i4.2466

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…The design centre frequency is chosen as 2.6 GHz, with a fractional bandwidth (FBW) of 0.03, and the input/output characteristic impedance (Z0) of 50 Ohms. The identical filter circuits were designed based on the technique reported in [22], and then coupled together to achieve the integrated filtering power divider circuit arrangement shown in Fig. 2.…”

Section: Theoretical Circuit Configurationmentioning

confidence: 99%

Application of Compact Folded-Arms Square Open-Loop Resonator to Bandpass Filter Design

Nwajana

Raymond²

2023

Micromachines

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Folded-arms square open-loop resonator (FASOLR) is a variant of the conventional microstrip square open-loop resonator (SOLR) that facilitates further device size miniaturization by having the two arms of the conventional SOLR folded inwards. This paper highlights the benefits of this brand of compact SOLR by implementing a five-pole Chebyshev bandpass filter (BPF) using compact FASOLR. The test BPF is presented, with centre frequency of 2.2 GHz, fractional bandwidth of 10%, passband ripple of 0.04321 dB, and return loss of 20 dB. The design is implemented on a Rogers RT/Duroid 6010LM substrate with a dielectric constant of 10.7 and thickness of 1.27 mm. The filter device is manufactured and characterised, with the experimentation results being used to justify the simulation results. The presented measurement and electromagnetic (EM) simulation results demonstrate a good match. The EM simulation responses achieve a minimum insertion loss of 0.8 dB and a very good channel return loss of 22.6 dB. The measurement results, on the other hand, show a minimum insertion loss of 0.9 dB and a return loss of better than 19.2 dB. The filter component has a footprint of 36.08 mm by 6.74 mm (that is, 0.26 λg x 0.05 λg), with λg indicating the guided wavelength for the 50 Ohm microstrip line impedance at the centre frequency of the proposed fifth-order bandpass filter.

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Section: Theoretical Circuit Configurationmentioning

confidence: 99%

Application of Compact Folded-Arms Square Open-Loop Resonator to Bandpass Filter Design

Nwajana

Raymond²

2023

Micromachines

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“…The microstrip square open-loop resonator (SOLR) [17][18][19] and hairpin resonator (HPR) [20] were used in the layout implementation of the proposed FPS. The SOLR and each HPR were designed to resonate at f 0 .…”

Section: Microstrip Layout Designmentioning

confidence: 99%

Unbalanced Two-Way Filtering Power Splitter for Wireless Communication Systems

et al. 2021

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A compact unbalanced two-way filtering power splitter with an integrated Chebyshev filtering function is presented. The design is purely based on formulations, thereby eliminating the constant need for developing complex optimization algorithms and tuning, to deliver the desired amount of power at each of the two output ports. To achieve miniaturization, a common square open-loop resonator (SOLR) is used to distribute energy between the two integrated channel filters. In addition to distributing energy, the common resonator also contributes one pole to each integrated channel filter, hence, reducing the number of individual resonating elements used in achieving the integrated filtering power splitter (FPS). To demonstrate the proposed design technique, a prototype FPS centered at 2.6 GHz with a 3 dB fractional bandwidth of 3% is designed and simulated. The circuit model and layout results show good performances of high selectivity, less than 1.7 dB insertion loss, and better than 16 dB in-band return loss. The common microstrip SOLR and the microstrip hair-pin resonators used in implementing the proposed integrated FPS ensures that an overall compact size of 0.34 λg × 0.11 λg was achieved, where λg is the guided-wavelength of the 50 Ω microstrip line at the fundamental resonant frequency of the FPS passband.

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Comparison of 5G‐IoT antenna performance by using four distinct dielectric materials to verify their efficiencies

Mukherjee,

Roy

2024

Int J Communication

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SummaryThe characterization of four different materials, Taconic (D1), FR4 (D2), Lab material (D3), and Created material (D4) using the ring resonator technique, is presented in this study along with a comparison of antenna performance using standard and measured dielectric constant () and loss tangent () values. This article discussed the comparison of antenna performances on four distinct dielectric materials to verify their efficiencies. Standard values of for the reported materials are 2.20, 4.40, 2.33, and 10.45 for D1, D2, D3, and D4, respectively, with corresponding values of 0.0009, 0.02, 0.0012, and 0.00032. The and for the materials D1, D2, D3, and D4 are calculated as 2.10, 4.56, 2.51, and 9.89 and 0.00094, 0.01927, 0.0013, and 0.0003025, respectively, using a ring resonator. The materials are utilized as the substrate for a printed single layer Y‐Shape 5G‐IoT antenna in order to validate the measured results. According to the findings of this study, the measurement of using the resonator approach exhibited errors of 4.54%, 3.63%, 7.82%, and 5.33%, respectively, while the has errors of 04.44%, 03.65%, 08.33%, and 5.47% for materials D1, D2, D3, and D4, respectively. The outcomes of this work include the numerical calculation of the and of four materials and the validation of the measured values using a Y‐Shape 5G‐IoT antenna in the millimeter‐wave 5G frequency bands. Additionally, the values calculated mathematically are compared with the values obtained from the conventional ring resonator.

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Circuit Modelling of Bandpass/Channel Filter with Microstrip Implementation

Cited by 9 publications

References 8 publications

Application of Compact Folded-Arms Square Open-Loop Resonator to Bandpass Filter Design

Application of Compact Folded-Arms Square Open-Loop Resonator to Bandpass Filter Design

Unbalanced Two-Way Filtering Power Splitter for Wireless Communication Systems

Comparison of 5G‐IoT antenna performance by using four distinct dielectric materials to verify their efficiencies

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