Publication de 12 numéros par an
ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009
Indexed in
INTERACTION OF THIN METAL WIRES WITH MICROWAVE RADIATION IN A WAVEGUIDE (LONGITUDINAL GEOMETRY)
RÉSUMÉ
An experimental study of the effect of the strong interaction of microwave radiation with very thin (d << λ) metal wires located along the axis of a hollow metal waveguide was carried out. The transmittance and reflection coefficients of the waveguide section with a wire in it were measured in the frequency range from 12 to 18 GHz. The absorption and scattering coefficients of the wires are evaluated. The diameters of the wires ranged from 50 to 1000 microns, while their length ranged from 100 to 200 mm. The waveguide cross-section is 8×16 mm, the wave type is H10. Experiments have shown that the transmittance value of the section with the fiber in it is in the range of 80...90%; the reflectance values are in the range 1...5%, depending on the fiber length and its diameter. At some frequencies, where resonances are observed, the transmittance reduces down to 10...20%, and the reflectance increases up to 10...40%. The results of the study have shown the existence of the effect of the strong interaction of microwave radiation with very thin conductive fibers in the waveguide with a longitudinal fiber arrangement. The effect can be used in the development of waveguide elements for measuring equipment: attenuators, absorbing loads, etc.
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Kuzmichev, V.M., Kokodij, N.G., Safronov, B.V., and Balkashin, V.P., (2003) Absorption efficiency factor of a thin metal cylinder in the microwave diapason, Radiotechnika i Elektronika, 48(11), pp. 1348-1351, (in Russian).
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Kokodij, N.G., Shulga, S.N., and She, He, ((2011) The interaction of electromagnetic waves in a waveguide with very thin wires, Radiotechnika i Elektronika, 56(10), pp. 1201-1204, (in Russian).
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Kokodij, N.G., Natarova, A.O., Timanuk, V.A., and Priz, I.A., (2017) Flexible protective microwave screens on the basis of thin conducting fibers, Telecommunications and Radio Engineering, 76(18), pp. 1671-1680.
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Kokodij, N.G., Kaydash, M.V., Timanuk, V.A., and Priz, I.A., (2017) The interaction of electromagnetic radiation with thin metal wire with a sliding wave incidence, Radiotechnika i Elektronika, 62(3), pp. 210-216, (in Russian).
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Wait, J.R., (1955) Scattering of a plane wave from a circular dielectric cylinder an oblique incidence, Canadian Journal of Physics, 33(5), pp. 189-195.
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Lind, A.C. and Greenberg, J.M., (1966) Electromagnetic scattering by obliquely oriented cylinders, Journal of Applied Physics, 37(8), pp. 3195-3203.