SU1525780A1 - Metal-to-insulator waveguide junction - Google Patents

Abstract

This invention relates to an EHF technique and can be used in dielectric waveguide devices. The purpose of the invention is to reduce losses. The transition contains a segment 1 of a metal waveguide, a metal horn 2 and a segment of a dielectric waveguide, consisting of a metal substrate 3, a dielectric layer 4 and a dielectric rod 5, pointed at one end. To achieve the goal on layer 4 in the region of the pointed end of the rod 5 at a length of 3 - 5 λ from it, where λ is the wavelength, there is a metal layer 6, which is a continuation of the wall of segment 1. Layer 6 prevents excitation of layer 4. Since the thickness of layer 6 does not exceed 0.1 of the height of the rod 5 and the dielectric constant of the rod 5 is greater than the dielectric constant of the material of layer 4, then at the end of the horn 2, where layer 6 ends, the electromagnetic wave goes almost without loss into a segment of the dielectric waveguide located on the substrate 3. 2 silt

Description

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The invention relates to an EHF i technique and can be used in devices on dielectric waveguides.

The purpose of the invention is to reduce losses.

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The transition of a metal waveguide to a dielectric comprises a segment of a metal waveguide 1, a metal horn 2 and a segment of a dielectric waveguide consisting of a metal substrate 3, a dielectric layer 4 and a dielectric rod 5, pointed at one end. On the dielectric layer 4 there is a metal layer 6, which is a continuation of the wall of a segment of the metal waveguide 1,. The device works as follows.

The electromagnetic wave, which spreads across the cut of the metal waveguide 1, is transformed in the region of the horn 2 at a length of (3-5) L, where L is the wavelength, and passes into the dielectric rod 5, the metallic layer, Q 6, prevents the excitation of the dielectric layer 4, Since the thickness of the metal layer 6 does not exceed 0.1 of the height of the dielectric rod 5 and the dielectric constant of the material of the dielectric rod 5 is greater than the dielectric constant

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of the material of the dielectric layer 4, then at the end of the horn 2, where the metal layer 6 ends, the electromagnetically goes to the wave almost without loss into a segment of the dielectric waveguide located on the metal substrate 3,

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The transition of a metal waveguide to a dielectric, containing a segment of a metal waveguide and a segment of a dielectric waveguide consisting of a metal substrate, a dielectric layer deposited on it, and a dielectric rod, the dielectric constant of the material of the dielectric layer, pointed from one. the end facing the segment of the metal waveguide, and placed in a metal horn connected to the segment of the metal waveguide characterized in that, in order to reduce losses, on the dielectric layer in the region of the pointed end of the dielectric rod at a length (3-5) from a non-go, where 71 is the wavelength, a metal layer with a thickness of no more than 0.1 is located the height of the dielectric rod, which is a continuation of the wall of a segment of a metal waveguide.

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Claims (1)

Claim Transition of a metal waveguide to a dielectric containing segment of a metal waveguide and a segment of a dielectric waveguide consisting of a metal substrate, a dielectric layer deposited on it, and a dielectric rod, the dielectric constant of which is greater than the dielectric constant of the material of the dielectric layer, pointed at one end facing a piece of metal waveguide, and placed in a metal horn connected to a piece of metal waveguide, from characterized in that, in order to reduce losses, on the dielectric layer in the region of the pointed end of the dielectric rod at a length of (3-5) Ά from it, where 7ι is the wavelength, there is a metal layer with a thickness of not more than 0.1 of the height of the dielectric rod, which the continuation of the wall of a segment of metal wave ¹ water.