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2021

  • Chen, Weiqi, et al. “Intensified microwave-assisted heterogeneous catalytic reactors for sustainable chemical manufacturing.” Chemical Engineering Journal 420 (2021): 130476.
  • Malhotra, Abhinav, et al. “Temperature homogeneity under selective and localized microwave heating in structured flow reactors.” Industrial & Engineering Chemistry Research 60.18 (2021): 6835-6847.
  • Lagunas-Chavarría, A., et al. “Effect of synthesis and sintering temperatures on K0. 5Na0. 5NbO3 lead-free piezoelectric ceramics by microwave heating.” Journal of Materials Science: Materials in Electronics 32.11 (2021): 15279-15290.
  • Guillén Pineda, René M., et al. “Fabrication and characterization of Nb2O5‐doped 3Y‐TZP materials sintered by microwave technology.” International Journal of Applied Ceramic Technology 18.6 (2021): 2033-2044.
  • Gutiérrez-Cano, José D., et al. “Detection of anti-counterfeiting markers through permittivity maps using a micrometer scale near field scanning microwave microscope.” Sensors 21.16 (2021): 5463.
  • Penaranda-Foix, Felipe L., et al. “Directional coupler calibration for accurate online incident power measurements.” IEEE Microwave and Wireless Components Letters 31.6 (2021): 624-627.
  • Guillen, Rene M., et al. “Dielectric, mechanical and thermal properties of ZrO2–TiO2 materials obtained by microwave sintering at low temperature.” Ceramics International 47.19 (2021): 27334-27341.
  • Moratal, Sheila, et al. “Study of colored on the microwave sintering behavior of dental zirconia ceramics.” Journal of Asian Ceramic Societies 9.1 (2021): 188-196.

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Dielectric Kit for Vials @2.45GHz

The Dielectric Kit for Vials (DKV) is a new device designed to measure the complex permittivity of a wide range of liquid, granular or powdered materials around the ISM microwave frequency of 2.45 GHz.

DKV is a standalone equipment including all necessary components to perform automatically the generation, control and analysis of microwave signals, accurate calculation of dielectric properties and display of results. Everything in less than 5 seconds!!

Microwaves are emerging as an innovative, cost-effective, and efficient technology in various technological and scientific fields as chemistry, pharmacy, material science, food, agriculture, etc. Consequently, there is an increasing demand for accurate dielectric measurements of materials, to investigate new effective and efficient ways to apply microwave processing to their materials and reactions. Dielectric properties, particularly the loss tangent (imaginary part of the complex permittivity), determine the ability of materials to absorb microwave energy and convert it into heat. DKV is oriented to researchers or specialist that are interested in fast, reliable and traceable data of dielectric properties of materials, and they are not experienced with the use of sophisticated network analysers and microwave measurements.

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Microwave cavities and resonators

Microwave cavities and resonators are essential components at microwave frequencies, known for their ability to confine and control electromagnetic energy. Typically made of metal, microwave cavities are designed to resonate at specific frequencies and are characterized by a high-quality factor (Q-factor), which measures their energy storage efficiency. Resonators can take various forms, including cylindrical, spherical, and rectangular, each optimized for different applications.

Beyond communication systems, microwave cavities are used in radar, satellite technology, dielectric and magnetic material measurements, and microwave heating applications. For example, they are core components in microwave ovens, where they generate and sustain high-frequency electromagnetic fields to heat materials.

With extensive expertise in microwave cavities and resonance measurements, ITACA-DIMAS offers on-demand design and precision manufacturing of microwave cavities. These are tailored for accurate dielectric or magnetic measurements, sensors, or microwave processing of materials to meet specific requirements.

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Microwave Technology for Sintering High-Quality Materials (ACT, 2014)

Discover the potential of microwave technology in material sintering with our study, ” Microwave, Spark Plasma and Conventional Sintering to Obtain Controlled Thermal Expansion β-Eucryptite Materials,” published in July 2014 in the International Journal of Applied Ceramic Technology.

In this work, lithium aluminosilicate was fabricated by three different methods: conventional, spark plasma and microwave sintering, from 1200 to 1300°C.

Microwave technology developed by DIMAS made possible to obtain fully dense glass-free lithium aluminosilicate bulk material (>99%) with near-zero and controlled coefficient of thermal expansion and excellent mechanical properties (7.1 GPa of hardness and 110 GPa of Young’s modulus).

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Microwave Technology for Sintering High-Quality Materials (ACT, 2014) Read More »

Numerical Techniques and EM Modelling

In this field, we conduct theoretical research in numerical methods for electromagnetic modelling, both for open and closed microwave structures. These numerical procedures enable us to design various components, such as microwave cavities, dielectric measurement probes, filters, duplexers, and more.

Microwave modeling is crucial in advancing microwave technology, as it allows for the accurate simulation and analysis of microwave circuits, systems, and components. By creating detailed models, engineers can predict performance, identify potential issues, and optimize designs before prototypes are built. This not only accelerates the development process but also reduces costs and enhances the reliability and efficiency of microwave devices. Furthermore, microwave modeling plays a key role in exploring innovative applications, from telecommunications to medical diagnostics, ensuring that new technologies are both feasible and effective.

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