UA23552U - Parabolic antenna - Google Patents

Abstract

The proposed parabolic antenna contains a reflector that is designed as an asymmetrical section of a paraboloid of revolution. Along the perimeter of the reflector, a flange is installed. The plane of the flange is parallel to the focal plane of the paraboloid.

Description

Description of the invention

The useful model refers to the antenna technology of the microwave range and can be used in systems for receiving and focusing electrical signals of satellite, telephone communications, and radar.

There are many different designs of parabolic antennas made using reflectors. Consumers place high demands on the qualities of a parabolic antenna, such as the rigidity of the parabola shape, which ensures the quality of signal focusing, reliability in conditions of temperature disturbances, under air loads, convenience in operation and transportation. Manufacturers in a private city value ease of production. In some parabolic antennas, the reflector is made of metal by the method of casting under pressure. It is possible to get a strong and light aluminum reflector with high stability of form. However, this is an expensive technology for the production of a parabolic antenna.

A well-known parabolic antenna partially eliminates some of the above-mentioned disadvantages. It consists of a reflector in the form of an asymmetric cut from a paraboloid of rotation. It can be with one or several reflectors of smaller sizes, connected in series, made of sheet steel by the method of cold stamping. The well-known parabolic antenna is characterized by ease of manufacture.

Thanks to this solution, the metal consumption of the parabolic antenna is reduced, the field of its use is expanded by increasing the degree of integration of the design of the component parts, where the same structures simultaneously perform the functions of the reflector itself, the support-turning device and elements that increase their rigidity.

Patent of Ukraine Mo22478 M.K.L. НО1.01/12; NOTE 23/02., pub. 30.06.1998, Bull. Moz, 1998 (11.

Despite the fact that the known device quite effectively protects the parabolic antenna from precipitation, it performs the function of thermal stabilization of the reflector to a very small extent, that is, protection against temperature deformations due to changes in the ambient temperature.

The most attractive in this direction is the invention, which provides effective thermal stabilization of the working surface of the reflector and thereby minimizes its temperature deformations due to changes in the ambient temperature.

The problem is solved due to the fact that along the contour of the reflector, the nozzles of the air duct are mixed, which are oriented in the radial direction to the center of the reflector in the plane of the opening of its aperture. In the central part of the reflector, another annular air duct is installed, the nozzles of which are oriented in the radial direction of the reflector and towards its surface. yu

The presence of the above-mentioned constituent elements of the reflector leads to high labor intensity of the manufacturing process and the cost of the product. at

Declaration patent of Ukraine for the invention Mo36463 m.cl. НО1.21/02, publ. 04/16/2001, Bul. Mo3, 2001 |21. co

The closest to the parabolic antenna, which is claimed to have common characteristics and

From the result, which is achieved when using, there is an antenna device with one reflector, protected by a patent p

of Ukraine Mo28178, IPC 6 NOT 19/10, pub. October 16, 2000, Bull. Mo5, 2000 Or. (ZI.

This device is chosen as a prototype.

The well-known antenna device consists of a reflector in the form of an asymmetric cut from a paraboloid of rotation, the end of which belongs to the plane of its opening. Along the perimeter of the reflector there is a channel-like Z 50 baffle design. The elliptical end of the cutout is supplemented to the shape of a circle by two crescent-shaped platforms, symmetrically located on both sides relative to the major axis of the ellipse.

From" In this design, manufacturing manufacturability is achieved due to the addition of the elliptical contour of the end face of the non-axisymmetric reflector to the shape of a circle by introducing two sickle-shaped platforms.

The channel-like platform of the baffle stiffens the reflector of the parabolic antenna.

However, this form of pick-up does not add reliability in conditions of temperature disturbances, with air loads. Also, it does not ensure the quality of focusing signals, since there is an influence of radiation from the channel-like baffle.

The problem that the proposed useful model is aimed at solving is the creation of a simple and reliable i-th design of a parabolic antenna due to the improvement of the baffle profile, which is characterized by additional rigidity in the radial direction and a higher quality of signal focusing.

At the same time, it provides convenience and reliability during transportation and operation of the parabolic antenna, which is easier to manufacture, reliable in conditions of temperature disturbances, in the case of air loads, in conditions of atmospheric precipitation.

The improvement of the design of the baffle is achieved due to the use of a baffle of a more technological 29 and an improved form, which continues the reflector in the radial direction. c The purpose of the proposed solution is: - ease of manufacture; - reliability and quality of focusing signals in conditions of temperature disturbances, air loads; - reliability of use, convenience during transportation and operation. 60 The set goal is achieved by the fact that in a parabolic antenna, which consists of a reflector in the form of an asymmetric cutout from a paraboloid of rotation, the end of which belongs to the plane of its opening, and there is a flap construction along the perimeter of the reflector, the flap consists of a torus-shaped part and a conical flange, which cover the reflector along the annular surface parallel to the focal plane of the parabola.

The set goal is also achieved by the fact that the baffle is improved with double component elements, 62 contains several torus-shaped parts and conical elements that contact each other, continue each other and the reflector.

In the proposed solution, the shape of the parabolic antenna is close to planar, its ovality is approximately 1095, and therefore precipitation in the form of rain and snow is not retained on the surface of the reflector.

There is also agreement with the field of the irradiator. The zone of registration of emitted flows is expanding.

An electromagnetic wave, the source of which is in the far zone, when falling on the surface of the reflector, due to its near-planar surface, has a flat front. This wave is represented by a parallel beam.

Good electrical characteristics are determined, in particular, a high value of the surface utilization factor.

The antenna reliably receives and transmits the relevant information. Thanks to the clear radius collisions along the contour, the 7/0 has improved circular pattern parameters. Extraneous influence on the receiving signal is eliminated.

The range of receiving signals of lower power is expanding, the level of side radiation is low.

It is more technological in production, since the working surface of the reflector is formed by the section of the plane of the paraboloid of rotation and has the appearance of a truncated parabola, which allows the reflector to be made from sheet steel by the method of cold stamping.

The advantage over well-known parabolic antennas is also a more rigid design of the baffle, which determines reliability under air loads, temperature disturbances, reliability of use, convenience during transportation and operation.

A comparative analysis of the proposed technical solution with known technical solutions allows us to conclude that the proposed parabolic antenna differs from the known ones by the presence of new design features. No technical solutions have been found in the known sources of information, which are characterized by the set of features of the proposed useful model.

The essence of the useful model is explained by the drawings, which provide:

Fig. 1 - general view of the parabolic antenna;

Fig. 2 - rear view of the parabolic antenna;

Fig. C - parabolic antenna reflector, side view;

Fig. 4 - section A Fig. 3, returned; t

Fig. 5 - reflector of a parabolic antenna with a double baffle, straight view;

Fig. 6 - section B Fig. 1, returned;

Fig. 7 - rotary bracket. c zo The parabolic antenna (Fig. 1) has a reflector 1 with an annular peripheral baffle 2 (Fig. 4). The working surface of reflector 1 (Fig. 3) is formed by the section of the plane of the paraboloid of rotation and has the appearance of a truncated parabola. This sets the shape of the antenna to be parabolic, which is close to planar, its ovality is 1095 and therefore precipitation in the form of rain and snow is not retained on the surface of the reflector.

Flap 2 consists (Fig. 4) of a torus-shaped part C and flange 4, which has a conical shape. me)

The combination of toroidal and conical contours adds a hard flap 2 to the reflector 1, which covers the reflector 1 on an annular surface parallel to the focal plane of the parabola.

The ring 5 (Fig. 4, Fig. 6), as part of the flap 2, continues the torus-shaped part Z in the outer direction. On the other hand, in the inner direction, the conical flange 4 is continued by the torus-shaped part with the surface 6, which contacts and continues the end of the reflector 1. Thanks to the clear radial collisions along the contour, the parameters of the circular directional pattern are improved. Extraneous influence on the receiving signal is eliminated. with c The outlet 2 of the reflector 1 is improved, for example, by double component elements. Double. flap 2 (Fig. 5, Fig. 6) consists of three torus-shaped parts З and two conical flanges 4. Surface и? 6 of the flange 2 extends the end of the reflector 1 and contacts the second conical flange 4.

The double baffle 2 determines the auxiliary effect of the parabolic antenna, provides a more rigid design to the reflector 1. The accuracy and rigidity characteristics of the parabolic antenna are improved. ko Reflector 1 of the parabolic antenna is made of sheet steel by the method of cold stamping, which adds greater manufacturability and ease of manufacture to the parabolic antenna. o The more rigid design of the receiver 2 determines the reliability of the parabolic antenna under air loads, temperature disturbances, reliability of use, convenience during transportation and operation. o The holder of the parabolic antenna (Fig. 1, Fig. 2) of the well-known

Ge construction.

It is assembled. It consists of a tubular element 7, a rotary bracket 8, a bar 9, a bracket 10 and a pad 11.

The rotary bracket 8 is shown in Fig. 7. It allows the parabolic antenna to be rotated approximately 302 to tune to satellite signals. It is allowed to quickly change the angle of inclination of the directional chart.

All constituent elements of the parabolic antenna have an anti-corrosion powder coating, which gives the parabolic antenna greater quality and reliability in use. Based on the description of the technical essence of the parabolic antenna, a useful model is proposed. The essential features of this parabolic antenna provide the necessary technical solution to the problem. The technical result is the creation of a parabolic antenna of a more rigid design, reliable in conditions of temperature disturbances, air loads, more technological and simple to manufacture, reliable in use, transportation and operation. 65 The proposed useful model of the parabolic antenna is possible for production in industrial conditions. Does not require special equipment and special materials for production. For its production, it is enough to have existing installations, standard equipment and materials.

Claims (2)

The formula of the invention 1. A parabolic antenna, which consists of a reflector in the form of an asymmetric cutout from a paraboloid of rotation, the end of which belongs to the plane of its opening, and along the perimeter of the reflector there is a flap design, which is distinguished by the fact that the flap consists of a torus-shaped part and a conical 70-shaped flange, which cover the reflector along the annular surface parallel to the focal plane of the parabola. 2. Parabolic antenna according to claim 1, which is characterized by the fact that the flap is improved by double composite elements and has several torus-shaped parts and conical elements that contact each other and continue each other and the reflector. - se I c) I c) Ge) c - with . a ko (95) 1 1 more) s bo b5