RU216239U1 - Waveguide path - Google Patents

Abstract

The utility model relates to radio engineering, namely to microwave technology and can be used in radar equipment, radio communications and other fields of technology.

The essence of the utility model is that in a waveguide path containing a segment of the waveguide, which includes a mounting plate, with variable sizes b1, b2 and b3 (Fig. 2), as well as three adjusted elements with a cylinder at the end, with variable dimensions a1, a2, a3 (Fig. 2), allow you to select the tuned elements and their location, thereby achieving a given transmission coefficient and reflection coefficient, increasing the number of "suitable" products.

The technical result is to increase the number of "good" products in the manufacturing process and production.

Description

The utility model relates to radio engineering, namely to microwave technology and can be used in radar equipment, radio communications and other fields of technology. As a prototype, a waveguide polarizer (RF patent No. 2298682 2007, IPC H01R 1/16, IPC H01R 5/08, publ. 10.05.2007) containing a waveguide segment, two flanges, two wedges, in addition there are two groups of tuning elements, each of which consists of three elements, designed to match the device as a whole.

Due to the fact that at high frequencies the wavelength in free space - λ is quite small and high accuracy of manufacturing and positioning of matching elements is required both in the waveguide segment itself and relative to each other, which can cause a decrease in the number of "good" products in the manufacturing and production process when using tuning elements in the design.

The disadvantage of the prototype device is the complexity of manufacturing associated with high requirements for equipment and manufacturing tolerances and, as a result, a decrease in the number of "suitable" products.

The problem to be solved is to increase the number of "suitable" products in the manufacturing and production process.

This result is achieved by introducing a mounting plate (KP) into the design of the VD, into which three trimming elements with a cylinder at the end (PE) are installed.

The essence of the proposed device is illustrated by the figure, (Fig. 1), where the following designations are accepted:

1 - Section of the waveguide (VD).

2 - Mounting bar (KP).

3 - The first trimmer with a cylinder at the end (PE).

4 - Second PE.

5 - Third PE.

The presented waveguide path changes its transverse dimension from the input to the output; therefore, in order to improve matching and minimize losses, it is necessary to compensate for the reactive component of the signal resulting from the appearance of irregularities in the VD and the transformation of the waveguide resistance. To do this, a CP was introduced into the VD, which is installed on the waveguide. The design of the gearbox allows you to install three PEs in it. The first, second and third PE are located parallel to the component of the vector E (* - shown conditionally), opposite the resonance points* (Fig. 1) (* - shown conditionally). By changing the position of each of the PE, the given level of the transmission coefficient and the reflection coefficient of the waveguide path is achieved. In this case, each of the PE can be completely removed from the VD, if necessary, such as the third PE (Fig. 1).

However, even with the help of moving the first, second and third PE, it is not always possible to achieve the given levels of the transmission coefficient and the reflection coefficient.

Resizing a1, a2, a3 and b1, b2, b3 may be required to achieve desired gain and reflectance levels (FIG. 2). To do this, a gearbox with the required dimensions can be installed in the VD. It is also worth noting that the dimensions can be changed by ±20% of the nominal values. Thus, a greater yield of "suitable" products with specified parameters is achieved, since the design of the waveguide path allows you to adjust to the actually manufactured VD.

The specified technical result is achieved by a combination of distinctive features, namely by introducing into the design: a fastening strap and three trim elements with a cylinder at the end.

The presented description of the claimed device allows, using known materials, technologies, purchased products and components, to manufacture it industrially and use it in radar equipment, radio communications and other fields of technology.

Claims (1)

A waveguide path containing a segment of the waveguide (VD), characterized in that the fixing bar (KP), the first, second and third tuning elements with a cylinder at the end (PE) are introduced into the composition, while the KP is installed on the VD, the first , the second and third PEs are parallel to the component of the vector E, while the distances between the centers of the trimmers b1, b2 and b3 in the KP are made with the ability to change in the range of ± 20% of the nominal values, in addition, the dimensions of the lower part of the trimmers al, a2 and a3 in the first, second and third PE are also made with the ability to change in the range of ±20% of the nominal values.

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