WAVEGUIDE FILTER ON BASE OF DIELECTRIC THE BRAGG STRUCTURE FOR MILLIMETER WAVES APPLICATIONS

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Abstract

It is considered and offered the waveguide band elimination filter with the working mode H10 that can be used in millimeter waves devices such as up, down- converters, mixer, etc. The characteristics of the filter was calculated by using analogy in electromagnetic the waveguide propagation and optical the wave propagation in the medium with the specific refractive index Ň. This conception can be applied for party-filled waveguide in the case when the Brillouin decomposition of the waveguide waves into plane waves is correct and the transformation of the incident (propagating) mode into other the mode types is absent.

In this work were calculated the spectrum energy transmittance T(f) in the filter stop band and the wavelength λ0 in the center of this band using the characteristic equation obtained in the result of theoretical consideration. Theoretical results are compared with experimental measurements.

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