Synthesis and characterization of low-loss Fe<sub>3</sub>O<sub>4</sub>-PDMS magneto-dielectric polymer nanocomposites for RF applications

Castro, Juan; Morales, C. D.; Weller, Thomas M.; Wang, J.; Srikanth, H.

doi:10.1109/wamicon.2014.6857768

Cited by 18 publications

(12 citation statements)

References 7 publications

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“…The values of ε r , tan δ e , µ r , and tan δ m are provided in Table 1. By comparing the data in Table 1, the values of the permittivity and permeability of the four samples measured by the proposed sensor can be seen basically in agreement with the nominal values given in [13,14], and the accuracy is high.…”

Section: Measurement and Resultssupporting

confidence: 66%

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

Wang¹,

Hao²

2022

PIER M

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In this paper, a microstrip sensor based on a complementary split ring resonator (CSRR)derived structure is proposed to characterize the permittivity and permeability of materials. By loading an etched meandered conductive ring and an interdigital capacitor structure, effective separation of the permittivity sensing area and permeability sensing area is realized, and the field strengths of the corresponding areas are improved. The relationship between the resonant response (resonant frequency and quality factor) of the sensor and the permittivity and permeability of the sample under test (SUT) is discussed, and the theoretical basis for measuring the material properties is given. By analyzing the measured resonant frequency and quality factor, the real and imaginary parts of the permittivity and permeability of the SUT can be determined. The sensor was fabricated on a Rogers 5880 substrate, and four standard dielectric and magnetodielectric (MD) samples were tested. The results show that the measured values of the real and imaginary parts of the permittivity and permeability are in good agreement with the reference data.

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Section: Measurement and Resultssupporting

confidence: 66%

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

Wang¹,

Hao²

2022

PIER M

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“…Researchers are currently examining ways to synthesize such materials with the goal to achieve low-loss materials with relative permittivity and permeability in the 3-10 range at microwave frequencies [23]. Thus, the adopted design was tuned using a genetic algorithm (GA) with the goal to produce a surrogate material with both a permittivity and a permeability as near to six as possible across S-band, as found using NRW.…”

Section: Waveguide Verification Standard Designmentioning

confidence: 99%

A Waveguide Verification Standard Design Procedure for the Microwave Characterization of Magnetic Materials

Crowgey

Tang

Rothwell

et al. 2015

PIER

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Abstract-A waveguide standard is introduced for validation purposes on the measurement accuracy of electric and magnetic properties of materials at microwave frequencies. The standard acts as a surrogate material with both electric and magnetic properties and is useful for verifying systems designed to characterize engineered materials using the Nicolson-Ross-Weir technique. A genetic algorithm is used to optimize the all-metallic structure to produce a surrogate with both relative permittivity and permeability within a target range across S-band. A mode-matching approach allows the user to predict the material properties with high accuracy, and thus compensate for differences in geometry due to loose fabrication tolerances or limited availability of component parts. The mode-matching method also allows the user to design standards that may be used within other measurement bands. An example standard is characterized experimentally, the errors due to uncertainties in measured dimensions and to experimental repeatability are explored, and the usefulness of the standard as a verification tool is validated.

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“…The activity of inorganic phosphatases can be inhibited by some small organic molecules, e.g., citrate acid, due to the iron complex formation [26,88]. The interaction of organic matter and iron oxide nanoparticles is very complex [140][141][142], the catalytic capacity, on the other hand, can also be enhanced when metal oxide nanoparticles surface modified with some especially organic ligand, e.g., glutathione, dendrimer, DNA, and protein, based on the progress of nanozyme and metal-organic frameworks from the view of bioengineering [143][144][145][146][147].…”

Section: Examples and Importance Of Iron Architecturementioning

confidence: 99%

“…A article by Claudio et al [166] focused on the importance of iron oxide nanoparticles in the soil, especially related to soil fertility, plant nutrition, and the interaction of phosphorus, sulfate, molybdate, and pollutants (arsenic or chromium) from the traditional view of soil chemistry with the title " Iron Oxide Nanoparticles in Soils: Environmental and Agronomic Importance". While Vindedahl et al [141], under the title " Organic matter and iron oxide nanoparticles: Aggregation, interactions, and reactivity", addressed the chemistry of iron oxide nanoparticles in aqueous environments, e.g., the effect of pH, organic matter sorp tion, and solid-state transformations. Both can help readers understand the fate, transport, and chemical behavior of nanoparticles in complex environments.…”

Section: Additional References and Perspectivesmentioning

confidence: 99%

“…One such method for controlling the performance of RF microwave devices is employing tunable magnetic materials such as Fe 3 O 4 nanoparticles nanocomposite as the base substrates. Morales et al in 2011 and 2014 reported implementation of magnetite (Fe 3 O 4 ) nanoparticles and -polydimethylsiloxane (PDMS) magnetodielectric composite for RF and microwave applications [140,141]. In this work, sub-10 nm Fe 3 O 4 nanoparticles have been synthesized using thermal decomposition method.…”

Section: Magnetite (Fe 3 O 4 ) Nanoparticles Composite For Antennas I...mentioning

confidence: 99%

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Iron Oxide Nanoparticles

Senna¹

2014

Dekker Encyclopedia of Nanoscience and Nanotechnology, Third Edition

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is an independent researcher and senior environmental scientist who focuses on the biogeochemistry of soil, water, plant, and solid wastes, including phosphorus. Rachel Carson's Silent Spring inspired him to learn soil science. He holds an MSc in Soil Ecology from Nanjing Agricultural University, China, and a Ph.D. in Environmental Chemistry from the Hebrew University of Jerusalem, Israel. He also completed a postdoctoral fellowship in Oceanography at the University of Miami, USA. In 2007, Dr. Huang observed the catalytic phenomena of the phosphate ester hydrolysis in aged inorganic iron solutions and iron oxide nanomaterials under the aqueous environment with Michaelis-Menten kinetics behavior and suggested a hypothesis on the inorganic enzyme (

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Synthesis and characterization of low-loss Fe₃O₄-PDMS magneto-dielectric polymer nanocomposites for RF applications

Cited by 18 publications

References 7 publications

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

A Waveguide Verification Standard Design Procedure for the Microwave Characterization of Magnetic Materials

Iron Oxide Nanoparticles

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Synthesis and characterization of low-loss Fe3O4-PDMS magneto-dielectric polymer nanocomposites for RF applications

Cited by 18 publications

References 7 publications

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

Design of a Microstrip Sensor Based on a CSRR-Derived Structure for Measuring the Permittivity and Permeability of Materials

A Waveguide Verification Standard Design Procedure for the Microwave Characterization of Magnetic Materials

Iron Oxide Nanoparticles

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Synthesis and characterization of low-loss Fe₃O₄-PDMS magneto-dielectric polymer nanocomposites for RF applications