A new planar sensor based on the matryoshka microstrip resonator

Neto, Alfrêdo Gomes; Costa, Angelina Dias Leão; Moreira, Cleumar da Silva

doi:10.1109/imoc.2017.8121074

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…In the microstrip transmission line structure, the field is more concentrated in the substrate, but still a weak electric field above it exists. The calculations involving microstrip structures use the effective permittivity, to take into account the permittivity of the substrate and the medium above the substrate, which is usually air [19]. As a result, if any material is placed on top of the resonator, the effective permittivity will vary, and consequently, the resonant frequency will shift.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

et al. 2020

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This paper presents a planar and compact microwave resonator sensor to characterize materials. The geometry of the resonator is based on the Sierpinski fractal curve and has four poles in the frequency range from 0.5 GHz to 5.5 GHz. Any of the four poles can be used to measure samples with low permittivity values, where the first pole is suitable for samples with high permittivity values. The sensitivity of the poles and return losses of the sensor are presented and obtained using a full-wave 3D simulator software. The device is manufactured and validated through a comparison between simulated and measured results.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

et al. 2020

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“…A new and simple sensor, based on a microstrip filter with an open Matryoshka configuration, was proposed in [34]. The proposed sensor was designed, fabricated, and successfully applied to detect the alcohol content of a liquid.…”

Section: Alcohol Concentration Sensormentioning

confidence: 99%

“…Since then, the work in these planar printed structures based on Matryoshka geometries has progressed steadily at GTEMA, as reported in many MSc theses [17,[19][20][21][22][23][24][25][26][27][28][29][30][31] and associated publications [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46]. Different applications have been envisaged, such as FSSs [17][18][19]21,23,24,27,32,33,36,[38][39][40]42], filters [20,22,26,30,37,43,46], antennas…”

Section: Introductionmentioning

confidence: 99%

Planar Printed Structures Based on Matryoshka Geometries: A Review

Neto,

Silva,

Carvalho

et al. 2024

Micromachines

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A review on planar printed structures that are based on Matryoshka-like geometries is presented. These structures use the well-known principle of Matryoshka dolls that are successively nested inside each other. The well-known advantages of the planar printed technology and of the meandered nested Matryoshka geometries are combined to generate miniaturized, multi-resonance, and/or wideband configurations. Both metal and complementary slot structures are considered. Closed and open configurations were analyzed. The working principles were explored in order to obtain physical insight into their behavior. Low-cost and single-layer applications as frequency-selective surfaces, filters, antennas, and sensors, in the microwave frequency region, were reviewed. Potential future research perspectives and new applications are then discussed.

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“…The fundamental resonant frequency (f1) of the proposed multiband sensor can be calculated using eq.1 [16].…”

Section: Sensor Designmentioning

confidence: 99%

Multi-band microwave sensor based on Hilbert’s fractal for dielectric solid material characterization

Silva

Araújo

Coutinho

et al. 2020

Journal of Electromagnetic Waves and Applications

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A planar sensor designed using the fourth Hilbert fractal curve iteration for solid material characterization at multiple frequencies is reported in this paper. The fractal curve is self-similar with space filling properties. The Hilbert fractal geometry is used to form a compact resonator, with a multiband frequency response where miniaturization is achieved, since a large transmission line length is effectively confined in a limited area. The sensor provides five resonances in the frequency range from 0 to 5 GHz. The resonant frequencies are 0.56, 1.68, 2.72, 3.69 and 4.72 GHz, all used to measure the real permittivity of known samples with a sensitivity of 7, 20, 27, 43 and 50 MHz/permittivity, respectively. The sensor is used to measure dielectric samples with 20 x 20 mm 2 areas with several thicknesses. Simulations and measurements demonstrate that the Hilbert fractal geometry can be used to design a multiband planar sensor for solid dielectric material characterization.

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A new planar sensor based on the matryoshka microstrip resonator

Cited by 7 publications

References 10 publications

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

Planar Sensor for Material Characterization Based on the Sierpinski Fractal Curve

Planar Printed Structures Based on Matryoshka Geometries: A Review

Multi-band microwave sensor based on Hilbert’s fractal for dielectric solid material characterization

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