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RF Cooking Ovens

  • Christopher HopperEmail author
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Abstract

The generation of microwave energy by solid-state semiconductors has recently been acknowledged as viable, and perhaps preferable. The reason for this is that solid-state technology allows for the capability for control over electromagnetic properties and characteristics of the microwave system [1]. These properties include the phase, the amplitude, and the frequency. With this amount of control, it is expected, and even demonstrated, that the two main characteristics of microwave generation and delivery system (efficiency and heating uniformity) can be improved significantly. It is not enough, however, to simply control and manipulate the properties mentioned above; there must be a feedback system that would allow this to be done in an intentional manner. There is yet another important difference between magnetron and solid-state technology, namely the ability to measure and respond to forward and reflected power levels. A typical solid-state RF (SSRF) generation system is comprised of a small-signal generation section, a high-power amplifier connected to a heat sink, and a power supply to drive the respective electronics [2]. The feedback, which is typically built into the power amplifier, then allows for the monitoring of the frequency, the phase, and the power levels. With these parameters, and the ability to manipulate them, it is not difficult to imagine that algorithms could be developed that could control these properties in a way which is responsive to the load contained within the cavity.

References

  1. 1.
    Yakovlev VV (2016) Computer modeling in the development of mechanisms of control over the microwave heating in solid-state energy systems. Ampere Newsl 89:18–21Google Scholar
  2. 2.
    Werner K (2015) RF energy systems: realizing new applications. Microw J: 22–34Google Scholar
  3. 3.
    Waldron RA (1970) Theory of guided electromagnetic waves. Van Nostrand Reinhold Company, LondonGoogle Scholar
  4. 4.
    Jackson JD (1999) Classical electrodynamics, 3rd edn. John Wiley & Sons Inc., HobokenzbMATHGoogle Scholar
  5. 5.
    COMSOL Multiphysics, v. 5.3. www.comsol.com
  6. 6.
    Computer simulation technology. www.cst.com
  7. 7.
    Datta A (2001) Handbook of microwave technology for food application. Marcel Dekker Inc., New YorkCrossRefGoogle Scholar
  8. 8.
  9. 9.
  10. 10.
    Ellison WJ (2007) Permittivity of pure water, at standard atmoshpheric pressure, of the frequency range 0–25 THz and the temperature range 1–100 C. J Phys Chem Ref Data 36:1CrossRefGoogle Scholar
  11. 11.
    Ellison WJ, Lamkaouchi K, Moreau JM (1996) Water: a dielectric reference. J Mol Liq 68:171279CrossRefGoogle Scholar
  12. 12.
    Hopper CS, Grimaldi G, Marra F, Prochowski J, Sclocchi M (2019) Targeted food heating using a solid-state microwave oven. In: Proceedings of the 53rd annual microwave power symposium. Las Vegas, Nevada, USAGoogle Scholar
  13. 13.
  14. 14.
  15. 15.
  16. 16.
  17. 17.
    Laug OB (1977) Evaluation of a test method for measuring microwave oven cooking efficiency, NBSIR 77-1387. Institute for Applied Technology, National Bureau of Standards, Washington D.C.CrossRefGoogle Scholar
  18. 18.
    Household microwave ovens-Methods for measuring performance. International Electrotechnical Commission, IEC 60705, Geneva, Switzerland (2010)Google Scholar
  19. 19.
    Pitchai K, Birla S, Suggiah J, Jones D (2010) Heating performance assessment of domestic microwave ovens. In: 44th annual symposium of the International Microwave Power InstituteGoogle Scholar
  20. 20.
    Yakovlev VV Effect of frequency alteration regimes on the heating patterns in solid-state-fed microwave cavity. J Microw Power Electromagn Energy 52(1):31–44.  https://doi.org/10.1080/08327823.2017.1417105
  21. 21.
    Hopper CS, Grimaldi G, Mannara G, Marra F, Sclocchi M (2018) Analysis of food heating in a multi-source solid-state microwave oven. In: 52nd annual symposium of the International Microwave Power InstituteGoogle Scholar
  22. 22.
    Wesson R (2016) Solid-state microwave cooking. AMPERE Newsl 89Google Scholar
  23. 23.
    Werner K (2016) RF energy alliance: advancing next generation microwave heating applications. AMPERE Newsl 89Google Scholar
  24. 24.
    Durnan G (2016) Solid-state heating with advanced RF-power solutions. AMPERE Newsl 89Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.IBEX, ITW Food Equipment GroupGlenviewUSA

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