Novel Improved Sensitivity Planar Microwave Probe for Adulteration Detection in Edible Oils

Tiwari, Nilesh Kumar; Singh, Surya Prakash; Akhtar, M. Jaleel

doi:10.1109/lmwc.2018.2886062

Cited by 60 publications

(28 citation statements)

References 8 publications

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“…Recently there has been increased growth in utilization of microwave sensors to improve quality assurance in various fields like food [1], healthcare [2], agriculture [3], and environment [4]. Advantages like low cost, ease of fabrication, robust design, and integration with other microwave devices are the main reasons for the popularity of microwave sensors based on complementary metamaterials (MTMs) [5].…”

Section: Introductionmentioning

confidence: 99%

Complementary Metamaterial Sensor for Nondestructive Evaluation of Dielectric Substrates

Haq

Ruan

Zhang

et al. 2019

Sensors

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In this paper, complementary metamaterial sensor is designed for nondestructive evaluation of dielectric substrates. The design concept is based on electromagnetic stored energy in the complementary circular spiral resonator (CCSR), which is concentrated in small volume near the host substrate at resonance. This energy can be employed to detect various electromagnetic properties of materials under test (MUT). Effective electric permittivity and magnetic permeability of the proposed sensor is extracted from scattering parameters. Sensitivity analysis is performed by varying the permittivity of MUT. After sensitivity analysis, a sensor is fabricated using standard PCB fabrication technique, and resonance frequency of the sensor due to interaction with different MUT is measured using vector network analyzer (AV3672series). The transcendental equation is derived for the fabricated sensor to calculate relative permittivity for unknown MUTs. This method is very simple and requires calculating only the resonant frequency, which reduces the cost and computation time.

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Section: Introductionmentioning

confidence: 99%

Complementary Metamaterial Sensor for Nondestructive Evaluation of Dielectric Substrates

Haq

Ruan

Zhang

et al. 2019

Sensors

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“…In this regard, metamaterial resonators offer higher sensitivity than other microwave sensors and they have been reportedly found to sense small variation in EM (electromagnetic) properties of the sample [12]. As a result, metamaterial-based sensors have been presented for dielectric characterisation of ethanol and methanol [13], assessment of dielectric substrates [14], blood glucose monitoring [15][16][17], measurement of material thickness [18], biomedical applications [19], detection of cancerous cells [20], and the evaluation of oils [21]. Metamaterials (MMs) are artificially engineered structures that exhibit negative permeability and permittivity simultaneously [22].…”

Section: Introductionmentioning

confidence: 99%

Millimetre-Wave Metamaterial-Based Sensor for Characterisation of Cooking Oils

Qureshi

Abidin

Ashyap

et al. 2021

International Journal of Antennas and Propagation

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The characterisation of the cooking oils presents a significant challenge due to minor changes in their dielectric behaviour. In this paper, a new metamaterial-based sensor incorporating a split-ring resonator (SRR) with a microstrip transmission line is presented to characterise cooking oils. The design demonstrates metamaterial characteristics of negative permittivity and permeability simultaneously at the resonance frequency. Furthermore, its operation in the range of millimetre-wave frequencies can further enhance its sensitivity, especially for liquid materials. The sensor’s novelty is the operation at millimetre-wave frequencies that offers a high shift in the transmission coefficient while operating at 30 GHz. The sensor’s performance analysis is undertaken by using six MUTs with dielectric constants ranging from 0.126 to 4.47. The presented structure designed on 12 × 8 mm2 Rogers substrate offers a sensitivity of 1.12 GHz per unit change in dielectric constant. The phase's shift demonstrates a lower percentage error than the amplitude and linearly moves towards higher frequencies with the increase in dielectric constant and tangent loss of MUT. The designed sensor can be prominently useful for detecting liquids' chemical characteristics in chemistry and medicine fields.

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“…After this innovation, many researchers suggested various types and shapes of the resonators at various resonant frequencies. The metamaterial sensors have widely been used in various applications such as absorbers [3–5], THz antennas [6–8], characterisation of magneto‐dielectric materials [9], food [10], healthcare [11], agriculture [12], organic tissue analysis [13], and environment [14]. Being inexpensive, simple in fabrication, vigorous in designs, and compatible with other microwave devices are the core motives of the popularity of the metamaterial‐based microwave sensors [15].…”

Section: Introductionmentioning

confidence: 99%

Design of highly sensitive complementary metamaterial‐based microwave sensor for characterisation of dielectric materials

Samad

Shahzad

et al. 2020

IET Microwaves, Antennas & Propagation

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Novel Improved Sensitivity Planar Microwave Probe for Adulteration Detection in Edible Oils

Cited by 60 publications

References 8 publications

Complementary Metamaterial Sensor for Nondestructive Evaluation of Dielectric Substrates

Complementary Metamaterial Sensor for Nondestructive Evaluation of Dielectric Substrates

Millimetre-Wave Metamaterial-Based Sensor for Characterisation of Cooking Oils

Design of highly sensitive complementary metamaterial‐based microwave sensor for characterisation of dielectric materials

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