A novel and compact 3.5 GHz tunable bandpass filter in SIW technology with shunt‐inductive discontinuities switched by pin diode switches

Caleffo, Ricardo Caranicola; Correra, Fatima Salete

doi:10.1002/mop.32640

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…Still regarding the experimental results, was verified an arithmetic mean error of 1.75% for the predicted � � , validating the proposed design procedure. In many practical applications, microwave switches can provide electronic and mechanical frequency tuning [10], [12]- [16], however, the tuning range is reduced by the no-ideal behavior and parasitic effects [10], [16]. Thus, the experimental resonance frequency value will be lower than the one predicted by (14).…”

Section: Resonant Cavities Fabrication and Experimental Resultsmentioning

confidence: 99%

Determining a Perturbation Factor to Design Tunable Resonant Cavities in SIW Technology

Caleffo

Correra

2023

J. Microw. Optoelectron. Electromagn. Appl.

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This paper presents an effective and novel design procedure employing a novelty named as Perturbation Factor to predict the resonance frequency of resonant cavities in SIW technology perturbed by a shape perturbation. The design procedure can be applied in tunable cavities and bandpass filters with shunt reactance of symmetrical inductive window, and regarding the application technologies, rectangular waveguide resonators and resonant cavities in SIW can be employed due to the equivalence of operation between both technologies. Its straightforward application allows a frequency variation of up to 20% using only one metal post which allows the reduction of the fabrication cost and the preservation of the frequency response across the considered bandwidth. To validate the design procedure, two resonant cavities were fabricated, a rectangular resonant cavity designed to operate at 5.0 GHz and 6.0 GHz and a square resonant cavity designed to operate at 6.0 GHz and 7.2 GHz, and frequency variations of 17.74% and 21.81% were obtained for the rectangular and square cavities, respectively. Still regarding the reached results, was verified a mean error of 1.75% for the predicted resonance frequency, which validates the design procedure. The experimental results are in good agreement with the full-wave computational results and electromagnetic theory.

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Section: Resonant Cavities Fabrication and Experimental Resultsmentioning

confidence: 99%

Determining a Perturbation Factor to Design Tunable Resonant Cavities in SIW Technology

Caleffo

Correra

2023

J. Microw. Optoelectron. Electromagn. Appl.

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“…One promising technique is by using microstrip structure.Since resonators are the basic component of the microstrip filter, it is requisite to select a proper resonator for filter design. Out of various bandpass microstrip filters, the rectangular ring resonator is one of the most preferred [13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Second order microstrip bandpass filter design based on square resonator for 5G sub-6 GHz band

et al. 2022

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A simple procedure for designing a highly selective microstrip bandpass filter of second order is presented in this paper. The proposed filter is composed of two principal square open-loop resonators and designed with planar structures on a Roger substrate. It is intended for 5G applications, especially for Sub-6 GHz range frequency [3.5–3.8 GHz]. The suggested band pass filter has a very attractive compact size of 7 mm × 15.46 mm. The performance of this simple miniaturized filter, which is characterized by high selectivity in the band of interest, can be seen from its important characteristics: Adaptation, Transmission and Coupling Coefficients. The electromagnetic simulations and measurement results are in good agreement, which validates the design idea and procedure.

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“…In this paper, the proposed diplexer design is based on two microstrip planar band pass filter (BPF) structures printed on Rogers RT/duroid 6010LM, in which each one is based on resonators technique [14][15][16][17][18][19][20][21]. The first BPF is designed for the lower range frequency [1.7 GHz to 1.9 GHz] fixed for 4G-LTE applications, while the second is designed for the higher range frequency The proposed diplexer model is low cost and light weighted due to the implementation of microstrip technology.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized high isolation printed diplexer model based on band pass filter technique for 4G-LTE/5G-Sub 6 GHz applications

Slimani

Das²,

Madhav³

et al. 2022

J. Inst.

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This paper presents the design of a high isolation miniaturized compact diplexer model based on Band-Pass Filter technique, which is intended especially for a lower band [1.7 GHz to 1.9 GHz] fixed for 4G-LTE and a higher band [3.4 GHz to 3.8 GHz] fixed for 5G Sub-6 GHz. The designed diplexer is very compact with an overall size of 11× 36.49 mm2. The proposed design method is implemented by directly combining two band pass filters (BPFs) with separated electric and magnetic coupling distribution and designed with planar structures on a Rogers RT/duroid 6010LM substrate with a relative dielectric constant of 10.2, which simplifies significantly the design process of diplexer. The performance of this structure is presented and discussed in terms of its important characteristics: Impedance matching, Transmission losses and Isolation. Good agreements between simulated and measured results are achieved, which successfully verifies the proposed design method.

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A novel and compact 3.5 GHz tunable bandpass filter in SIW technology with shunt‐inductive discontinuities switched by pin diode switches

Cited by 4 publications

References 14 publications

Determining a Perturbation Factor to Design Tunable Resonant Cavities in SIW Technology

Determining a Perturbation Factor to Design Tunable Resonant Cavities in SIW Technology

Second order microstrip bandpass filter design based on square resonator for 5G sub-6 GHz band

A miniaturized high isolation printed diplexer model based on band pass filter technique for 4G-LTE/5G-Sub 6 GHz applications

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