Dielectric Field Concentrator of Microwave Radiation

Investigation is carried out to experimentally study concentration of microwave radiation with a wavelength ranging from 2.46 to 3.55 cm in a compact subwavelength region by a spherical resonator consisting of a dielectric sphere with a waveguide branch 1.15, 2, or 2.26 mm in diameter connected to t...

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Bibliographic Details
Published in:Physics of wave phenomena 2023-04, Vol.31 (2), p.110-113
Main Authors: Golovanov, V. I., Suyazov, N. V., Shipilov, K. F.
Format: Article
Language:English
Subjects:
Acoustics
Diameters
Microwave Radiation
Microwaves
Physics
Physics and Astronomy
Quantum Optics
Radiant flux density
Resonance
Resonators
Waveguides
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Summary:Investigation is carried out to experimentally study concentration of microwave radiation with a wavelength ranging from 2.46 to 3.55 cm in a compact subwavelength region by a spherical resonator consisting of a dielectric sphere with a waveguide branch 1.15, 2, or 2.26 mm in diameter connected to the sphere tangentially to its surface or normally along its radius. The microwave radiation with a frequency ranging from 8.45 to 12.2 GHz excites Mie resonance oscillations in the spherical resonator with the attached waveguide branch. Frequency dependences of radiation from the waveguide branches show that the radiation intensity at the Mie resonance is almost two orders of magnitude higher than the intensity of the radiation exciting the resonant sphere.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X23020061