KR100905914B1 - Dual linear polarization horn array type antenna - Google Patents

Abstract

Dual linearly polarized horn array antennas with skew filters are provided. The dual linearly polarized horn array antenna according to the present invention includes a plurality of horns in which a first polarization and a second polarization are incident together, a plurality of polarization filtering units for separating the first and second polarizations incident together in the horns, respectively, and polarization. And a first polarization guide for guiding the first polarization separated by the filtering units, a second polarization guide for guiding the second polarization separated from the polarization filtering units, and a skew filter. As a result, polarization having an electric field direction unsuitable for reception by the antenna can be received, thereby further increasing the reception efficiency of the antenna.

Antenna, Horn, Guide, Skew Filter, Comb

Description

Dual linear polarization horn array type antenna

The present invention relates to a horn array antenna for receiving a broadcast signal from a satellite or transmitting a broadcast signal.

In general, as a satellite antenna, a micro strip patch array antenna using a dielectric substrate, a waveguide slot array antenna, or a horn antenna for obtaining high efficiency antenna characteristics is used.

Conventional waveguide slotted array antenna has a small resistance loss and radiation loss by transmitting a satellite broadcast signal through the waveguide. However, as in general satellite antennas, skew occurs when linear polarization is received, which causes a loss of a received satellite signal according to the skew angle.

Conventional satellite receiving antennas are designed to receive only a satellite signal coming in a horizontal or vertical direction, so the horizontal or vertical transmission of the satellite signal inevitably caused by regional differences or latitude and longitude differences in receiving the satellite signals There was a problem that can not properly receive the wrong satellite signal.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a dual linearly polarized horn array antenna having a skew filter applied to receive a polarized wave having an unsuitable electric field direction for the antenna to receive. .

A dual linearly polarized horn array antenna for receiving a first polarized wave and a second polarized wave according to an embodiment of the present invention includes: a plurality of horns into which the first polarized wave and the second polarized wave are incident; A plurality of polarization filtering units which separate first and second polarized waves incident together on the horns, respectively; A first polarization guide for guiding a first polarization separated from the polarization filtering parts; A second polarization guide for guiding a second polarization separated from the polarization filtering parts; And a skew filter.

And it is preferable that the said skew filter is comb-tooth shaped.

The angle of the comb teeth may be determined based on at least one of an angle at which the first polarized wave is incident, an angle at which the second polarized wave is incident, and a location of an area where the horn array antenna is used.

And it is preferable that the number of the comb teeth is at least one.

In addition, the skew filter is preferably formed in any one of the upper portion of the horn, the lower portion of the horn, the central portion of the polarization filtering portion and the lower portion of the polarization filtering portion.

And, when the skew filter is formed on the top of the horns, the skew filter is in the shape of a comb teeth abutting the edge of the opening formed on the top of the horns, and when the skew filter is formed on the bottom of the horns, the skew filter is the When the skew filter is formed in one of the center portion of the polarization filtering portion and the lower portion of the polarization filtering portion, the skew filter may be in the shape of a comb teeth contacting the polarization filtering portion. have.

In addition, the skew filter may be manufactured in the form of a film and attached to an upper portion of the horns or inserted into one of the lower portions of the horns, the center portion of the polarization filtering portion, and the lower portion of the polarization filtering portion.

According to the present invention, by employing a skew filter, it is possible to receive a polarized wave having an electric field direction which is unsuitable for the antenna to receive. As a result, the reception efficiency of the antenna can be further increased.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The dual linearly polarized horn array antenna according to an embodiment of the present invention performs all the functions of receiving or transmitting electromagnetic waves, but in the following embodiments, for convenience of explanation, the dual linearly polarized horn array antenna is based on the first role of receiving electromagnetic waves. Each component of the dual linearly polarized horn array antenna will be described, and the role of transmitting electromagnetic waves will be described later.

On the other hand, in the embodiment of the present invention, the first polarization is a polarization (H) (Horizontal Polarization) that is parallel to the earth's equator, the second polarization is a V polarization (Vertical Polarization) perpendicular to the Earth's equator.

2 is a plan view illustrating an antenna unit of a dual linearly polarized horn array antenna to which the present invention is applicable, and FIGS. 3 and 4 are perspective and perspective views, respectively, of the antenna unit of FIG. 2.

The dual linearly polarized horn array antenna 1 includes a plurality of horns 10 into which electromagnetic waves are incident, a first polarization guide 30 that guides first polarizations among electromagnetic waves incident through the horn 10, and a horn. A second polarization guide 50 for guiding the second polarization of the electromagnetic wave incident through the (10).

Each horn 10 is open toward the space, the first polarization guide 30 is formed in the lower portion of each horn 10, the second polarization guide 50 in the lower portion of the first polarization guide 30 Is formed. Here, the horn 10 and the first and second polarization guides 30 and 50 are spaces in which electromagnetic waves move, and each layer for forming the horn 10 and the first and second polarization guides 30 and 50. The shape of will be described later.

2 to 4 illustrate the smallest unit capable of processing the first and second polarized waves in the dual linearly polarized horn array antenna, and one antenna unit includes four horns. 10), each of which is formed of one first polarization guide 30 and second polarization guide 50. Hereinafter, the dual linearly polarized horn array antenna 1 will be described based on the antenna unit.

5 is a perspective view of a horn of a dual linearly polarized horn array antenna to which the present invention is applicable, FIG. 6 is a perspective perspective view of the horn of FIG. 5, FIG. 7 is a perspective side view of the horn of FIG. 5, and FIG. 8 is a partial cutaway perspective view of the horn of FIG. 5.

The horn 10 guides the electromagnetic waves so that the first polarized wave and the second polarized wave having the mutually perpendicular directions are incident on the incident surface. The horn 10 is formed at an inclined portion 15 formed in a quadrangular pyramid shape and at one end of the inclined portion 15. Polarization filtering unit 20 is included.

The inclined portion 15 is formed to taper along the traveling direction of the electromagnetic waves, and both ends thereof are opened along the traveling direction of the electromagnetic waves. The openings that are open to the outside of the open ends of the inclined portion 15 are referred to as outer openings, and the openings formed in a rectangular shape at the inner ends of the narrow portions of the inclined portion 15 are referred to as inner openings. The inner opening is formed with a first protruding jaw 17 protruding from the edge of the inner opening, and the first protruding jaw 17 protrudes by a predetermined width along the circumference of the inner opening. In the inclined portion 15, a second protruding jaw 18 protruding along the circumferential direction of the inclined portion 15 is formed on an inclined surface between the outer opening and the first protruding jaw 17. 18 is formed in parallel with the first protrusion (17). By forming at least one or more of the first and second protrusions 17 and 18, the performance of the horn antenna can be substantially maintained or improved, and accordingly, the height of the horn antenna can be reduced. Although the present embodiment has two protruding jaws 17 and 18, this is merely exemplary, and the number of protruding jaws 17 and 18 can be changed.

9 (a) and 9 (b) are perspective and perspective views showing the electromagnetic wave moving space by separating only the polarization filtering unit from the horn of FIG. 5, and FIGS. 10 (a) and 10 (b) are shown in FIG. Perspective view and perspective view of the polarization filtering portion of FIG. 10 from above, FIG. 11 is a plan view of the polarization filtering portion of FIG. 10 from above, and FIGS. 12 (a) to 12 (c) each have radiating protrusions 22 having different shapes. It is a side view of a polarization filtering part.

The polarization filtering unit 20 is connected to the inner opening of the inclined unit 15, and four polarization filtering units 20 are mounted for one antenna unit. The polarization filtering unit 20 passes only the second polarization, which is a specific polarization, and does not pass the first polarization. Accordingly, the first polarized wave does not pass through the polarization filtering unit 20 and is guided to the first polarization guide 30, and the second polarized wave passes through the region where the step 25 of the polarization filtering unit 20 exists. Guided by two polarization guide (50).

To this end, the polarization filtering unit 20 is formed such that its width becomes narrower from the top to the bottom connected to the inclined portion 15. The uppermost part of the polarization filtering part 20 connected to the inner opening of the inclined part 15 is formed in a rectangular cylinder extending downward from the inner edge of the first projection jaw 17, and one side wall of the polarization filtering part 20 is formed. It protrudes toward the inner space from the position spaced downward from the first protrusion step 17 by a predetermined width. Accordingly, the width of the polarization filtering unit 20 is narrowed in one direction to form a rectangular shape, and in this case, the width in the same direction as the electric field direction of the second polarization becomes narrow.

The first polarized inflow path 21 for guiding the first polarized wave that does not proceed to the lower portion of the polarization filtering part 20 to the first polarized wave guide 30 is formed on one side wall protruding inward. The first polarization inflow path 21 is formed in a long rectangular cylinder along the moving direction of the first polarization, and as shown in FIG. 11, in the central region along the width direction of one side wall of the polarization filtering unit 20. Is placed. In addition, a radiation protrusion 22 protruding toward the inside of the first polarization inflow passage 21 is formed at the lower portion of the inlet side of the first polarization inflow passage 21, and the radiation projection 22 is the first polarization inflow passage ( Protruding from a predetermined distance from the inlet to the lower portion of the inlet 21, the inner lower portion of the first polarization inflow path 21 is formed in a step shape.

The radiation projection 22 serves to narrow the inlet side of the first polarization inflow path 21 in the vertical direction, and the polarization projection 22 from the polarization filtering part 20 to the first polarization inflow path 21. It is possible to improve the feeding characteristic of the first polarized wave that is introduced. The spinneret 22 may be formed in various shapes. For example, as shown in FIG. 12 (a), it may be formed so as to protrude in the step of a square, as shown in (b), the polarization filtering unit 20 and the first polarization inflow path It may be formed to connect (21) at an angle, or may be formed to protrude in a curved shape, as shown in Fig. 12 (c).

On the other hand, the lower side of the first polarized inflow path 21 is formed with a side wall 25 on which one side wall on which the first polarized inflow path 21 is formed and the opposing wall opposite thereto protrude inward. Only one step 25 may be formed, or a plurality of steps may be formed, or may be formed only on one side wall or on both sides of one side wall and the opposing wall. 12 (a) to 12 (c), the polarization filtering unit 20 has two steps formed on one side wall and opposite walls. On the other hand, in the polarization filtering unit 20 shown in FIG. 13, a step is formed only on one side wall, and a plurality of steps are formed at a predetermined interval from the top of the polarization filtering unit 20.

Due to the step 25, the width of the polarization filtering unit 20 is narrowed in one direction, and the first and second polarizations passing through the polarization filtering unit 20 are separated, and the first polarization guide 30 is respectively. And a second polarization guide 50. In this case, the first polarization having the same electric field direction as the wide width of the polarization filtering unit 20 is provided to the first polarization guide 30 and the second polarization having the same electric field direction as the narrow width of the polarization filtering unit 20. Is moved along the polarization filtering unit 20 and provided to the second polarization guide 50. The number, size, and length of the step 25 may be changed according to the frequency of the second polarization guided by the second polarization guide 50.

On the other hand, an interference protrusion 19 protruding from the opposing wall is formed in an area facing the first polarized inflow path 21 on the opposing wall. The interference protrusion 19 is formed to exclude the second polarization from being interfered by the first polarization guide 30, and the shape of the interference protrusion 19 may be formed in various shapes such as a rectangle, a rectangle, an ellipse, and a semicircle. 14 (a) to 14 (c) show examples in which the interference protrusions 19 are formed in quadrangular, triangular, and semicircular shapes, respectively.

Instead of the interference protrusions 19, the interference rejection grooves 19a may be formed by recessing the wall surface facing the first polarization inflow path 21. The interference elimination groove 19a is formed by recessing in a shape of a rectangle, a rectangle, a triangle, an ellipse, a semicircle, or the like at the position where the interference protrusion 19 is formed. 14 (d) to 14 (d) show an example in which the interference rejection groove 19a is formed by recessing into a rectangle, a triangle, and a semicircle.

As the interference of the second polarization is excluded by the interference protrusion 19 or the interference removing groove 19a, the S11 parameter of the first polarization is improved, and the structure of the interference protrusion 19 or the interference removing groove 19a is Depending on the structure of the first polarization guide and the second polarization guide, or the frequency of the first and second polarization guides, their position and size may be changed.

15 is a simplified side cross-sectional view of a horn to which the present invention is applicable, FIG. 16 is a simplified side cross-sectional view of a horn having the same length as an outer opening of the same size as the horn of FIG. 15, and FIG. 17 is a simplified view of a horn having the same performance as the horn of FIG. Side cross section view.

16 and the length of the horn 110 shown in FIG. 16 is 61.0 mm, and the length of the horn 210 shown in FIG. 17 is 71.0 mm. The width of the outer openings of the respective horns 10, 110 and 210 is equal to 48.0 mm. The antenna gains of these three horns (10,110,210) are compared at the center frequency of 11.7 GHz, 12.7 GHz of the upper band, and 10.7 GHz of the lower band of the KU BAND 10.7 GHz to 12.75 GHz. It is shown in Table 1.

The present invention Figure 16 Figure 17 10.7 GHz 14.8 [dBi] 14.3 [dBi] 14.8 [dBi] 11.7 GHz 15.8 [dBi] 15.1 [dBi] 15.8 [dBi] 12.7 GHz 16.1 [dBi] 15.6 [dBi] 16.1 [dBi]

As can be seen from the experimental results, the horn 10 to which the present invention is applicable and the horn 210 of FIG. 17 designed to be 10.0 mm longer than the horn 10 to which the present invention is applicable, have the same performance in all frequency bands. Indicates. However, the horn 110 of FIG. 16 having the same length and the same outer opening size as the horn 10 to which the present invention is applicable is 0.5 dBi in the 10.7 GHz band, compared to the horn 10 to which the present invention is applicable. It can be seen that the antenna gain is as small as 0.7 dBi in the 11.7 GHz band and 0.5 dBi in the 12.7 GHz band. In general, when the difference of the antenna gain is 1dBi can be seen that the performance is improved by 33%, it can be seen that the horn 10 to which the present invention is applicable improves about 18% compared to the conventional horn of the same size. In addition, compared to the horn 210 of FIG. 17 having the same performance, the height of about 10 mm can be shortened, so that the size of the antenna can be reduced.

That is, even if only the first projection jaw 17 is formed in the inner opening of the inclined portion 15, the length of the inclined portion 15 can be shortened while maintaining the width of the inner opening and the width of the outer opening.

18 (a) and 18 (b) are a perspective view and a perspective view in which the first polarization guide and the second polarization guide of FIG. 2 are coupled, and FIG. 19 (a) shows a first polarization guide in a state where the polarization filtering unit is coupled; 19 (b) is a perspective view of the first polarization guide of FIG. 19 (a), and FIG. 19 (c) is a perspective view of the first polarization guide of FIG. 19 (b).

The first polarization guide 30 guides the first polarization incident to the four horns 10 and exits the first polarization guide. The first polarization guide 30 is formed on the four polarization filtering units 20 on all sides of the first polarization guide 30. Four openings connected to the inflow passage 21 are formed.

The first polarization guide 30 includes a first guide tube 31 and a second guide tube 32 interconnecting a pair of neighboring first polarization inflow passages 21, and a first guide tube 31. And a first intermediate pipe 40 connecting the second guide pipe 32 and a first mixing pipe 45 extending from a central region of the first intermediate pipe 40.

Both ends of the first guide pipe 31 are connected to a pair of first polarized inflow path 21, and both ends of the first guide pipe 31 and each first polarized inflow path 21 form a right angle with each other. . In addition, a pair of first inflow guide surfaces 33 are formed at both ends of the first guide pipe 31 with the outer edge region connected to the first polarization inflow path 21 inclined at an angle. Accordingly, the first polarization introduced through the pair of first polarization inflow passages 21 is changed in the traveling direction by the first inflow guide surface 33 and guided to the first guide tube 31.

A pair of first polarization inflow passages 21 are connected to both ends of the second guide tube 32, and a pair of second inflow guide surfaces inclined obliquely to the outer edge regions of both ends of the second guide tube 32 ( 34) is formed. Accordingly, the second polarized wave introduced through the pair of first polarized inflow paths 21 proceeds toward the second guide tube 32 by the second inflow guide surface 34.

The first guide tube 31 and the second guide tube 32 is formed such that the width of the central region of each tube is smaller than the width of both ends, for this purpose, the first guide tube 31 and the second guide tube (32) In the central region of the tube), shaft diameter parts 35 and 36 protruding inwardly of the tube are formed. In accordance with the width of the first guide tube 31 and the second guide tube 32 formed according to the degree of protruding shaft diameter portion (35, 36), to the first intermediate pipe 40 and the first mixing pipe 45 The center frequency of the incident first polarized wave is determined. That is, by adjusting the widths and lengths of the shaft diameters 35 and 36, the center frequency of the first polarized wave incident on the first mixing pipe 45 may be shifted.

In the present embodiment, the shaft diameter portion (35, 36) is formed on one side wall that is connected to the first guide pipe 31 and the second guide pipe 32, the first intermediate pipe 40, the first intermediate pipe 40 may be formed on the wall surface opposite to the one side wall surface to be connected, or may be formed on both of the wall surface opposite to the one side wall surface.

On the other hand, the first guide pipe 31 and the second guide pipe 32 are arranged in parallel with each other such that the first inlet guide surface 33 and the second inlet guide surface 34 are inclined in the same direction.

The first intermediary tube 40 interconnects the central regions of the first guide tube 31 and the second guide tube 32, and both ends of the first guide tube 31 and the first guide tube 31 and the first guide tube 31 are connected to each other. A pair of bent pipe portions 41 extending from a region connected to the two guide pipes 32 and bent obliquely in one direction are formed. And each bending pipe part 41 is mutually connected by the straight pipe part, the straight pipe part is formed narrower by a predetermined width than the width of the bending pipe part 41.

The first mixing pipe 45 for mixing the first polarization introduced from the first guide pipe 31 and the second guide pipe 32 is formed in the central region of the straight pipe portion of the first intermediate pipe 40. . The first mixing pipe 45 is firstly bent to extend from the central region of the first intermediate pipe 40 to be parallel to the first intermediate pipe 40 and then to be perpendicular to the first intermediate pipe 40. It is bent and formed, thereby forming a '-' shape. First and second inclined surfaces 46 and 47 are formed in the first and second bent regions of the first mixed pipe 45 at an angle to the outer edge regions, respectively, to change the traveling direction of the first polarized wave. Accordingly, the first polarization from the first intermediate pipe 40 is mixed in the first mixing pipe 45, and the traveling direction is changed by the first and second slopes 46 and 47 and flows out of the antenna unit. . The first polarization emitted from the antenna unit is mixed with the first polarization emitted from another antenna unit and discharged to the outside, and the movement of the first polarization emitted from the antenna unit will be described later.

In the first polarization guide 30, both ends of the first guide tube 31 are formed symmetrically with each other, and both ends of the second guide tube 32 are also formed symmetrically with each other. Accordingly, each of the first polarizations introduced to both ends of the first guide tube 31 is in phase when reaching the first intermediate tube 40, and the angles introduced to both ends of the second guide tube 32 are equal to each other. When the first polarization reaches the first intermediate pipe 40, the phase becomes the same. Accordingly, the first polarization introduced into both ends of the first guide tube 31 and merged in the first intermediate pipe 40, and introduced into both ends of the second guide tube 32 and merged in the first intermediate pipe 40. The first polarization can be prevented from being canceled or deformed by the phase difference.

Fig. 20 (a) is a plan view of the second polarization guide, Fig. 20 (b) is a perspective view of the second polarization guide of Fig. 20 (a), and Fig. 20 (c) is a perspective view of the second polarization guide of Fig. 20 (b). Perspective view.

The second polarization guide 50 is disposed in parallel with the first polarization guide 30, and receives the second polarization guide received through the polarization filtering unit 20.

The second polarization guide 50, the first to fourth direction switching unit (51, 52, 53, 54) for changing the traveling direction of the second polarized wave transmitted through each polarization filtering unit 20, and the first A fourth guide pipe 55 connecting the turning part 51 and the third turning part 53, and a fourth guide connecting the second turning part 52 and the fourth turning part 54. From the second intermediary tube 63 connecting the tube 60, the third guide tube 55 and the fourth guide tube 60, and the third guide tube 55 and the fourth guide tube 60. And a second mixing tube 65 for mixing the second polarized wave.

The first to fourth turning units 51, 52, 53, and 54 are connected to the polarization filtering unit 20, respectively, and each of the turning units 51, 52, 53, and 54 has a protruding end 68. The reflecting surface 69 is formed. The protruding end 68 protrudes upward from the bottom surface of each of the turning parts 51, 52, 53, 54 at an end portion of the turning parts 51, 52, 53, 54 facing the polarization filtering part 20. It is formed, the one side wall is connected to the third and fourth guide pipes (55, 60) is formed in a rectangular tube formed obliquely. When the second polarized wave having the electric field direction along the narrow width of the polarization filtering unit 20 meets the protruding end 68, the traveling direction is changed. The reflective surface 69 is formed at an angle to the surface opposite to the protruding end 68 at an angle, and reflects the second polarized wave whose traveling direction is changed by the protruding end 68 so as to reflect the third and fourth guide tubes 55. , 60).

The first turning part 51 and the second turning part 52 are formed in parallel to correspond to the positions of the reflecting surface 69 and the protruding end 68, and the third turning part 53 and the fourth turning part 52 correspond to each other. The turning part 54 is also formed in parallel so that the positions of the reflecting surface 69 and the protruding end 68 correspond to each other. In addition, the reflective surfaces 69 of the first turning unit 51 and the third turning unit 53 are symmetrical to each other, and are mirror-shaped, and the second turning unit 52 and the fourth turning unit 54 are mirror-shaped. ), The reflective surface 69 is also symmetric with each other to form a mirror image.

Meanwhile, the third guide tube 55 mixes the second polarized wave in which the traveling direction is changed in the first turning unit 51 and the third turning unit 53 to provide the second mixing tube 65. The fourth guide pipe 60 mixes the second polarized wave in which the traveling direction is changed in the second turning part 52 and the fourth turning part 54 and provides it to the second mixing pipe 65. The third guide tube 55 and the fourth guide tube 60 is formed to be symmetrical with respect to the second mixing tube (65).

In addition, the third guide tube 55 and the fourth guide tube 60, the width of the both ends of the area connected to the first to fourth direction switching unit (51, 52, 53, 54) third guide tube (55). ) And the width of the central region of the fourth guide tube (60). Accordingly, steps 57 and 62 are formed at both ends of the third guide tube 55 and both ends of the fourth guide tube 60 on both sides of the width in the horizontal direction. One or more of the steps 57 and 62 may be formed along the longitudinal direction of the third guide tube 55 and the fourth guide tube 60, and a plurality of the steps 57 and 62 may be formed.

The third guide tube 55 and the fourth guide tube 60 are connected to each other by a second intermediate tube 63 connecting the central region. The second intermediate pipe 63 is formed as a straight pipe, and the width of the central region is formed narrower than the width of both ends along the longitudinal direction. To this end, a protrusion 64 protruding inwardly by a predetermined width from the one side wall to which the second mixing pipe 65 is connected is formed in the central region of the second intermediate pipe 63.

In the present embodiment, the protrusion 64 is formed only on one side wall to which the second mixing pipe 65 is connected, but the protrusion 64 may also be formed on the wall facing the one side wall. In addition, of course, the number of protrusions 64 may be formed in plural or the degree of protrusion of the protrusions 64 may be adjusted. By adjusting the number, length, and width of the protrusions 64 in this way, the frequency of the second polarized wave mixed in the second mixing tube 64 can be adjusted.

The second mixed pipe 65 is first bent to extend from the central region of the second intermediate pipe 63 to be parallel to the second intermediate pipe 63 and then to be perpendicular to the second intermediate pipe 63. It is bent and formed, thereby forming a '-' shape. Third and fourth inclined surfaces 66 and 67 are formed in the first and second bent regions of the second mixed pipe 65 at an angle to the outer edge thereof to change the traveling direction of the second polarized wave. Accordingly, the second polarized wave from the second intermediate pipe 63 is mixed in the second mixing pipe 65, and the traveling direction is changed by the third and fourth slopes 66 and 67 and flows out of the antenna unit. . The second polarization emitted from the antenna unit is mixed with the second polarization emitted from another antenna unit and discharged to the outside, and the movement of the second polarization emitted from the antenna unit will be described later.

The process of receiving the first and second polarized waves separately from the dual linearly polarized horn array antenna 1 according to the above-described configuration will be described below.

First, when an electromagnetic wave is incident through the horn 10, the electromagnetic wave is guided along the inclined portion 15, and then provided to the polarization filtering portion 20 via the first and second protrusions 17 and 18. The polarization filtering unit 20 is gradually narrowed by one of the plurality of steps 25, so that the first polarization having the same electric field direction as the long width of the polarization filtering unit 20 is the polarization filtering unit 20. ) Does not pass through the first polarization guide 30 through the first polarization inflow path 21 of the polarization filtering unit 20. In addition, the second polarization having the same electric field direction as the short width of the polarization filtering unit 20 moves downward along the polarization filtering unit 20 and is incident to the second polarization guide 50.

The first polarization of the electromagnetic waves incident through the four horns 10 is incident to both ends of the first and second guide tubes 31 and 32 of the first polarization guide 30. At one end of the first intermediate pipe 40, the first polarization input from both ends of the first guide pipe 31 is mixed, and at the other end of the first intermediate pipe 40, both ends of the second guide pipe 32. The first polarized wave input from is mixed. The first polarization input to both ends of the first intermediate pipe 40 meets at the central region of the first intermediate pipe 40 and is guided to the first mixing pipe 45. In the first mixing pipe 45, the first polarized wave moved from both ends of the first intermediate pipe 40 is mixed, and the first polarized wave whose direction of travel is changed by the first and second slopes 46 and 47 is the first wave. It exits to the outside of the mixing pipe 45.

On the other hand, the second polarization guided to the second polarization guide 50 through the polarization filtering unit 20 has the same electric field direction as the narrow width of the polarization filtering unit 20. The second polarized wave moves to the first to fourth turning portions 51, 52, 53, and 54, and the protruding end 68 formed on the first to fourth turning portions 51, 52, 53, and 54, respectively. The direction of travel is converted. The second polarized wave is reflected from the reflecting surfaces 69 of the first to fourth turning units 51, 52, 53, and 54 to move to the third or fourth guide tubes 55 and 60, respectively. The second polarization from the first turning section 51 and the third turning section 53 is mixed in the central region of the third guide tube 55, and the second turning section 52 and the fourth turning section are mixed. The second polarization from the section 54 is mixed in the central region of the fourth guide tube 60. The second polarizations from the third guide pipe 55 and the fourth guide pipe 60 are input to both ends of the second intermediate pipe 63, respectively, and are mixed in the central region of the second intermediate pipe 63. It is provided with two mixing tubes (65). The second polarized wave mixed in the second mixing tube 65 is moved by the third and fourth inclined surfaces 66 and 67 while the traveling direction is changed to be emitted to the outside.

Meanwhile, the process of transmitting the first polarized wave and the second polarized wave in the dual linearly polarized horn array antenna 1 will be described below.

The second polarization incident on the second mixing pipe 65 of the second polarization guide 50 is separated into two in the central region of the second intermediate pipe 63 to the third and fourth guide pipes 55 and 60. And guides along the third and fourth guide tubes 55 and 60 to both ends of the third and fourth guide tubes 55 and 60. The separated second polarized waves are reflected from the reflecting surfaces 69 of each of the turning parts 51, 52, 53, and 54 and provided to the protruding ends 68, respectively. The second polarization is changed by the protruding end 68 toward the polarization filtering unit 20, and ascends through the polarization filtering unit 20.

On the other hand, the first polarization incident on the first mixing pipe 45 of the first polarization guide 30 is separated from the central region of the first intermediate pipe 40 and proceeds to both ends of the first intermediate pipe 40. . When the separated first polarization meets the first and second guide pipes 31 and 32 connected to both ends of the first intermediate pipe 40, the first polarized wave is separated again and both ends of the first and second guide pipes 31 and 32, respectively. You are guided to. At both ends of the first and second guide tubes 31 and 32, the first polarization is changed by the first and second inflow guide surfaces 33 and 34 toward the first polarized inflow path 21, The first polarization passes through the first polarization inflow path 21 and is provided to each polarization filtering unit 20. The first polarization emitted to each polarization filtering part 20 is combined with the second polarization from the second polarization guide 50 and is radiated to the air through the inclination part 15.

In order to manufacture the dual linearly polarized horn array antenna 1, the configuration separated by layers will be described as follows.

FIG. 21 is an exploded perspective view of each layer of the dual linearly polarized horn array antenna to which the present invention is applicable. FIG. 22 is a plan view of the first layer of FIG. 21, and FIG. 23 is a perspective view of the first layer of FIG. 21.

The dual linearly polarized horn array antenna includes a first layer 100, a second layer 150, a third layer 200, a fourth layer 250, and a fifth layer 300.

The inclined portion 15 of the horn 10 and the first and second protrusions 17 and 18 are formed in the first layer 100, and the inclined portion 15 is formed on the planar side of the first layer 100. It is formed, the inner side opening is formed on the back side of the first layer (100).

24 is a plan view of the second layer of FIG. 21, FIG. 25 is a perspective view of the second layer, and FIG. 26 is a rear view of the second layer.

The second layer 150 is formed with a polarization filtering part 20 connected to the inner opening formed in the first layer 100, and the polarization filtering part 20 forms an area adjacent to each corner of the second layer 100. It is formed through. Inside the polarization filtering unit 20, a portion of the first polarization inflow path 21 and the interference protrusion 19 or the interference rejection groove 19a is formed.

An upper portion of the first and second guide tubes 31 and 32, the first intermediate tube 40, and the first mixed tube 45 of the first polarization guide 30 are formed on the rear surface of the second layer 150. do.

FIG. 27 is a plan view of the third layer of FIG. 21, FIG. 28 is a perspective view of the third layer, and FIG. 29 is a rear view of the third layer.

The lower region of the first polarization guide 30 is formed on the upper surface of the third layer 200, and only the polarization filtering unit 20 penetrates the lower surface of the third layer 200. That is, the upper portion of the third layer 200, the lower portion of the first and second guide pipes (31, 32), the first intermediate pipe 40, the first mixing pipe 45 of the first polarization guide 30 Is formed.

30 is a plan view of the fourth layer of FIG. 21, FIG. 31 is a perspective view of the fourth layer, and FIG. 32 is a rear view of the fourth layer.

Only the polarization filtering unit 20 penetrates the upper surface of the fourth layer 250, and the first to fourth direction switching units 51 of the second polarization guide 50 are formed on the lower surface of the fourth layer 250. 52, 53, 54, the upper portion of the third and fourth guide tube (55, 60), the second intermediate tube 63, the second mixing tube (65) is formed.

33 is a plan view of the fifth layer, and FIG. 34 is a perspective view of the fifth layer.

The lower region of the second polarization guide 50 is formed on the upper surface of the fifth layer 300. The fifth layer 300 forms the second polarization guide 50 together with the fourth layer 250, and includes the first to fourth turning parts 51, 52, 53, 54, and the third and fourth guides. The pipes 55 and 60, the 2nd intermediate pipe 63, and the 2nd mixing pipe 65 are formed. The protruding end 68 and the reflecting surface 69 are formed in the first to fourth turning parts 51, 52, 53, and 54 of the fifth layer 300.

35 is a perspective view of a usage example of a horn array antenna according to the present invention, FIG. 36 is a perspective view of a first layer, FIG. 37 is a plan view of a second layer, FIG. 38 is a perspective view of a second layer, and FIG. 39 is a second layer. Is the rear view of.

The horn array antenna 1 according to the present example uses 8 × 16 = 128 horizontal horns, that is, 4 × 8 = 32 antenna units, and the second layer 150 has 128 horns ( 10) is formed.

Hereinafter, the horn array antenna of the present example will be described by separating the layers.

40 is a plan view of the third layer of the horn array antenna of FIG. 35, FIG. 41 is a perspective view of the third layer, and FIG. 42 is a rear view of the third layer.

The horn array antenna 1 of the present embodiment is composed of 32 antenna units, and the rear surface of the second layer 150 and the plane of the third layer 200 are combined to form 32 first polarization guides 30. .

The first polarization incident through the horn 10 is guided through each of the first polarization guides 30, and the first polarizations emitted from each of the first polarization guides 30 are mixed into one first polarization to be mixed into the horn array. It is emitted to the outside of the antenna 1. To this end, a first polarization outflow hole 400 is formed between the first polarization guide 12 312 and the first polarization guide 13 313 on the bottom of the third layer 200. On the other hand, the first polarization incident to the first polarization outflow hole 40 is separated into each of the first polarization guide 30, and then is emitted to the outside through the horn 10.

The first polarization guide 1 301 and the first polarization guide 2 302 are mirror-shaped so as to be symmetrical with each other, the first mixing pipe 45 of the first polarization guide 1 301 and the first polarization guide 2 ( The first mixing pipe 45 of 302 is communicated by the first polarization distribution pipe 1 351 having a 'T' shape. The first polarization guide 9 (309) and the first polarization guide 10 (310) is disposed in parallel with the first polarization guide 1 (301) and the first polarization guide 2 (302) of the first polarization guide 9 (309) The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 10 310 are communicated by the first polarization distribution pipe 3 353. The first polarization branch 1 351 and the first polarization branch 3 353 communicate with each other by the first polarization branch 2 352. Accordingly, the first polarization guide from the first polarization guide 1 (301), the first polarization guide 2 (302), the first polarization guide 9 (309), the first polarization guide 10 (310) is the first polarization distribution pipe 2 At 352.

The first polarization guide 3 (303) and the first polarization guide 4 (304) are formed in a mirror image so as to be symmetrical with each other, the first mixing pipe 45 of the first polarization guide 3 (303) and the first polarization guide 4 ( The first mixing pipe 45 of 304 is communicated by the first polarization distribution pipe 5 (355). The first polarization guide 11 (311) and the first polarization guide 12 (312) are disposed in parallel with the first polarization guide 3 (303) and the first polarization guide 4 (304), the first polarization guide 11 (311) The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 12 312 are communicated by the first polarization distribution pipe 7 357. The first polarization branch pipe 5 355 and the first polarization branch pipe 7 357 are communicated by the first polarization branch pipe 6 356. Accordingly, the first polarization guide from the first polarization guide 3 (303), the first polarization guide 4 (304), the first polarization guide 11 (311), the first polarization guide 12 (312) is the first polarization distribution pipe 6 Are mixed at 356.

In addition, the first polarization distribution pipe 2 (352) and the first polarization distribution pipe 6 (356) are connected by the first polarization distribution pipe 4 (354), both sides of the straight pipe of the first polarization distribution pipe 4 (354). If the end is called port 2 and port 3, respectively, the first polarization guide 1, 2, 9, 10 (301, 302, 309, 310) is connected to the port 2, and the port 3 is the first polarization guide 3, 4, 11, 12 (303, 304, 311, 312) are connected. That is, the first polarization distribution pipe 4 354 becomes a 1: 1 distributor having the same number of first polarization guides 30 connected to the port 2 and the port 3.

With this configuration, the first polarization distribution pipe 4 (354) has the first polarization guides 1, 2, 9, 10 (301, 302, 309, 310), and the first polarization guides 3, 4, 11, 12 (303). The first polarizations from 304, 311, and 312 are mixed.

The first polarization guide 5 (305) and the first polarization guide 6 (306) are formed to be symmetrical with each other, the first mixing pipe 45 and the first polarization guide 6 (306) of the first polarization guide 5 (305) The first mixed pipe 45 of is communicated by the first polarization distribution pipe 8 (358). The first polarization guide 13 (313) and the first polarization guide 14 (314) are disposed in parallel with the first polarization guide 5 (305) and the first polarization guide 6 (306), the first polarization guide 13 (313) of The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 14 314 are communicated by the first polarization distribution pipe 10 360. The first polarization branch pipe 8 (358) and the first polarization branch pipe 10 (360) are communicated by the first polarization branch pipe 9 (359). Accordingly, the first polarizations from the first polarization guides 5, 6, 13, and 14 (305, 306, 313, 314) are mixed in the first polarization distribution pipe 9 (359).

The first polarization guide 7 (307) and the first polarization guide 8 (308) are formed to be symmetrical with each other, the first mixing pipe 45 and the first polarization guide 8 (308) of the first polarization guide 7 (307). The first mixed pipe 45 of is communicated by the first polarization distribution pipe 12 (362). The first polarization guide 15 (315) and the first polarization guide 16 (316) are disposed in parallel with the first polarization guide 7 (307) and the first polarization guide 8 (308), the first polarization guide 15 (315) The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 16 (316) are communicated by the first polarization distribution pipe 14 (364). The first polarization branch 12 (362) and the first polarization branch 14 (364) are communicated by the first polarization branch 13 (363). Accordingly, the first polarizations from the first polarization guides 7, 8, 15, and 16 (307, 308, 315, and 316) are mixed in the first polarization distribution pipe 13 (363).

In addition, the first polarization branch pipe 9 (359) and the first polarization pipe branch 13 (363) are connected by the first polarization pipe branch 11 (361), the second polarization pipe 11 (361) in port 2 One polarization guide 5, 6, 13, 14 (305, 306, 313, 314) is connected, the first polarization guide 7, 8, 15, 16 (307, 308, 315, 316) is connected to the port 3. That is, the first polarization branch pipe 11 361 is a 1: 1 distributor having the same number of first polarization guides 30 connected to the port 2 and the port 3.

With such a configuration, the first polarization distribution pipe 11 (361), the first polarization guides 5, 6, 13, 14 (305, 306, 313, 314) and the first polarization guide 7, 8, 15, 16 (307) The first polarizations from 308, 315 and 316 are mixed.

Since the first polarization guides 17 to 32 to be described later also have the same arrangement as the first polarization guides 1 to 16 described above, they will be briefly described.

The first polarization guide 17 (317) and the first polarization guide 18 (318) are connected by the first polarization distribution pipe 15 (365), the first polarization guide 25 (325) and the first polarization guide 26 (326) It is connected by the first polarization branch pipe 17 (367). The first polarization branch pipe 15 (365) and the first polarization branch pipe 17 (367) communicate with each other by the first polarization branch pipe 16 (366). The first polarization guide 19 (319) and the first polarization guide 20 (320) are connected by the first polarization distribution pipe 19 (369), the first polarization guide 27 (327) and the first polarization guide 28 (328) It is connected by the first polarization distribution pipe 21 (371). The first polarization branch 19 (369) and the first polarization branch 21 (371) communicate with each other by the first polarization branch 20 (370).

Here, the first polarization distribution pipe 16 (366) and the first polarization distribution pipe 20 (370) are connected by the first polarization distribution pipe 18 (368), and the port 2 of the first polarization distribution pipe 18 (368) One polarization guide 19, 20, 27, 28 (319, 320, 327, 328) is connected, the first polarization guide 17, 18, 25, 26 (317, 318, 325, 326) is connected to the port 3. That is, the first polarization distribution pipe 18 (368) is a 1: 1 distributor having the same number of first polarization guides 30 connected to the port 2 and the port 3.

The first polarization guide 21 (321) and the first polarization guide 22 (322) are connected by the first polarization distribution pipe 22 (372), the first polarization guide 29 (329) and the first polarization guide 30 (330) It is connected by the first polarization distribution tube 24 (374). The first polarization branch pipe 22 (372) and the first polarization branch pipe 24 (374) communicate with each other by the first polarization branch pipe 23 (373). The first polarization guide 23 (323) and the first polarization guide 24 (324) are connected by the first polarization distribution pipe 26 (376), the first polarization guide 31 (331) and the first polarization guide 32 (332) It is connected by the first polarization distribution pipe 28 (378). The first polarization branch pipe 26 (376) and the first polarization branch pipe 28 (378) are communicated with each other by the first polarization branch pipe 27 (377).

Here, the first polarization branch 23 (373) and the first polarization branch 27 (388) is connected by the first polarization branch 25 (375), the second polarization branch 25 (375) in port 2 One polarization guide 23, 24, 31, 32 (323, 324, 331, 332) is connected, the first polarization guide 21, 22, 29, 30 (321, 322, 329, 330) is connected to the port 3. That is, the first polarization distribution pipe 25 375 becomes a 1: 1 distributor having the same number of first polarization guides 30 connected to the port 2 and the port 3.

Accordingly, the first polarization guides 17, 18, 25, 26 (317, 318, 325, 326) and the first polarizations from the first polarization guides 19, 20, 27, 28 (319, 320, 327, 328) are mixed in the first polarization distribution pipe 18 (368). The first polarization guide 21, 22, 29, 30 (321, 322, 329, 330) and the first polarization from the first polarization guide 23, 24, 31, 32 (323, 324, 331, 332) are mixed in the first polarization distribution pipe 25 (375). .

On the other hand, the first polarization branch 4 (354) and the first polarization branch 18 (368) is connected to the port 3 and the port 2 of the first polarization branch 29 (379), the first polarization branch 4 (354). The first polarization from and the first polarization from the first polarization branch 18 (368) are mixed in the first polarization branch 29 (379). The first polarization branch 11 (361) and the first polarization branch 25 (375) are connected to port 2 and the port 3 of the first polarization branch 30 (380) to communicate with each other, the first polarization branch 11 (361). ) And the first polarization from the first polarization distribution pipe 25 (375) are mixed in the first polarization distribution pipe 30 (380). The first polarization branch 29 (379) and the first polarization branch 30 (380) are connected to port 3 and the port 2 of the first polarization branch 31 (381) to communicate with each other, and the first polarization branch 31 ( The first polarization outflow hole 400 is formed in the port 1 of 381. Therefore, the first polarization from the first polarization distribution pipe 29 (379) and the first polarization distribution pipe 30 (380) is mixed in the first polarization distribution pipe 31 (381), and then proceeds to the first polarization outflow hole 400 Is leaked to outside.

The first polarization distribution pipes 1 to 1 31 351 to 381 described above have the same number of first polarization guides 30 connected to the port 2 and the port 3, respectively. That is, the first polarization distribution pipe 1 to the first polarization distribution pipe 31 (351 to 381) is a 1: 1 divider. However, the first polarization distribution pipes 1 to 31 (351 to 381) may be formed in different shapes depending on their positions.

43 is a plan view of the fourth layer of FIG. 35, FIG. 44 is a perspective view of the fourth layer, and FIG. 45 is a rear view of the fourth layer.

The fourth layer 250 forms the second polarization guide 50 together with the fifth layer 300. Accordingly, the upper regions of the 32 second polarization guides 50 are formed on the rear surface of the fourth layer 250. Is formed. In addition, the fourth layer 250 has a first polarization outflow hole 400 for guiding the first polarization flowing into or out of the first polarization guide 30.

FIG. 46 is a front view of the fifth layer of FIG. 35, FIG. 47 is a perspective view of the fifth layer, and FIG. 48 is a rear view of the fifth layer.

The lower region of the second polarization guide 50 is formed on the front of the fifth layer 300, and the second polarization guide 50 is formed on the rear surface of the fifth layer 300 together with the first polarization inlet and outlet hole 400. The second polarization outflow hole 600 for guiding the second polarization flowing into or out of the (2) is formed.

The second polarization guide 1 501 and the second polarization guide 9 509 are mirror-shaped so as to be symmetrical with each other, the second mixing pipe 65 of the second polarization guide 1 501, and the second polarization guide 9 ( The second mixed pipe 65 of 509 is communicated by the second polarization distribution pipe 1 551 having a 'T' shape. The second polarization guide 2 (502) and the second polarization guide 10 (510) are disposed in parallel with the second polarization guide 1 (501) and the second polarization guide 9 (509), the second polarization guide 2 (502) The second mixing tube 65 and the second mixing tube 65 of the second polarization guide 10 510 are communicated by the second polarization distribution tube 3 553. The second polarization branch pipe 1 551 and the second polarization branch pipe 3553 communicate with each other by the second polarization branch pipe 2 552.

The second polarization guide 3 (503) and the second polarization guide 11 (511) are arranged to be symmetrical with each other, the second mixing pipe 65 and the second polarization guide 11 (511) of the second polarization guide 3 (503). The second mixed pipe 65 of is communicated by the second polarization distribution pipe 4 (554). The second polarization guide 4 (504) and the second polarization guide 12 (512) are disposed in parallel with the second polarization guide 3 (503) and the second polarization guide 11 (511), the second polarization guide 4 (504) The second mixing tube 65 and the second mixing tube 65 of the second polarization guide 12 512 are communicated by the second polarization distribution tube 6 556. The second polarization branch pipe 4 554 and the second polarization branch pipe 6 556 are communicated by the second polarization branch pipe 5 555.

The second polarization guide 17 (517) and the second polarization guide 25 (525) are formed to be symmetrical with each other, the second mixing tube 65 and the second polarization guide 25 (525) of the second polarization guide 17 (517). The second mixed pipe 65 is communicated by the second polarization distribution pipe 19 (569). The second polarization guide 18 (518) and the second polarization guide 26 (526) are disposed in parallel with the second polarization guide 17 (517) and the second polarization guide 25 (525). The second mixing tube 65 and the second mixing tube 65 of the second polarization guide 26 (526) are communicated by the second polarization distribution tube 21 (571). The second polarization branch 19 (569) and the second polarization branch 21 (571) are communicated by the second polarization branch 20 (570).

The second polarization guide 19 (519) and the second polarization guide 27 (527) are formed to be symmetrical with each other, the second mixing tube 65 and the second polarization guide 27 (527) of the second polarization guide 19 (519). The second mixed pipe 65 of is in communication with the second polarization distribution pipe 22 (572). The second polarization guide 20 (520) and the second polarization guide 28 (528) are disposed in parallel with the second polarization guide 19 (519) and the second polarization guide 27 (527), and the second polarization guide 20 (520) The second mixing tube 65 and the second mixing tube 65 of the second polarization guide 28 (528) are communicated by the second polarization distribution tube 24 (574). The second polarization branch pipe 22 572 and the second polarization branch pipe 24 574 are communicated by the second polarization branch pipe 23 557.

In addition, the second polarization branch 2 (552) and the second polarization branch 10 (560) is connected by the second polarization branch 13 (563), both sides of the straight pipe of the second polarization branch 13 (563). If the ends are referred to as port 2 and port 3, respectively, the second polarization guides 17, 18, 25, and 26 (517, 518, 525, 526) are connected to the port 2, and the second polarization guides 1, 2, 9, 10 (501, 502, 509, 510) are connected. That is, the second polarization branch pipe 13 563 becomes a 1: 1 distributor having the same number of second polarization guides 50 connected to the port 2 and the port 3.

Similarly, the second polarization branch pipe 5 555 and the second polarization branch pipe 23 575 are connected by the second polarization branch pipe 15 565, and the second polarization branch pipe 5 555 is connected to the port 2 of the second polarization branch pipe 15 565. The two polarization guides 3, 4, 11 and 12 (503, 504, 511 and 512) are connected, and the port 3 is connected to the second polarization guides 19, 20, 27 and 28 (519, 520, 527 and 528). That is, the second polarization distribution pipe 15 565 becomes a 1: 1 distributor having the same number of second polarization guides 50 connected to the port 2 and the port 3.

Meanwhile, the second polarization guide 5 (505) and the second polarization guide 13 (513) are connected by the second polarization distribution pipe 7 (557), and the second polarization guide 6 (506) and the second polarization guide 14 (514). ) Is connected by a second polarization distribution tube 9 (559). The second polarization branch 7 (557) and the second polarization branch 9 (559) communicate with each other by the second polarization branch 8 (558). The second polarization guide 7 (507) and the second polarization guide 15 (515) are connected by the second polarization distribution pipe 10 (560), the second polarization guide 8 (508) and the second polarization guide 16 (516) It is connected by the second polarization distribution pipe 12 (562). The second polarization branch pipe 10 560 and the second polarization branch pipe 12 562 communicate with each other by the second polarization branch pipe 11 561.

The second polarization guide 21 (521) and the second polarization guide 29 (529) are connected by the second polarization distribution pipe 25 (575), the second polarization guide 22 (522) and the second polarization guide 30 (530) It is connected by the second polarization distribution pipe 27 (577). The second polarization branch 25 (575) and the second polarization branch 27 (577) are communicated with each other by the second polarization branch 26 (576). The second polarization guide 23 (523) and the second polarization guide 31 (531) are connected by the second polarization distribution pipe 28 (578), the second polarization guide 24 (524) and the second polarization guide 32 (532) It is connected by the second polarization distribution pipe 30 (580). The second polarization branch 28 (578) and the second polarization branch 30 (580) are communicated with each other by the second polarization branch 29 (579).

On the other hand, the second polarization branch 8 (558) and the second polarization branch 26 (576) is connected by the second polarization branch 16 (566), the second polarization branch 16 (566) in port 2 The two polarization guides 21, 22, 29, and 30 (521, 522, 529, and 530) are connected, and the second polarization guides 5, 6, 13, and 14 (505, 506, 513, and 514) are connected to the port 3. That is, the second polarization distribution pipe 16 566 becomes a 1: 1 distributor having the same number of second polarization guides 50 connected to the port 2 and the port 3.

Similarly, the second polarization branch 11 (561) and the second polarization branch 29 (579) are connected by the second polarization branch 18 (568), and the port 2 of the second polarization branch 18 (568) The two polarization guides 7, 8, 15, 16 (507, 508, 515, 516) are connected, and the second polarization guides 23, 24, 31, 32 (523, 524, 531, 532) are connected to the port 3. That is, the second polarization distribution pipe 18 568 becomes a 1: 1 distributor having the same number of second polarization guides 50 connected to the port 2 and the port 3.

On the other hand, the second polarization branch 13 (563) and the second polarization branch 15 (565) is connected to the port 2 and the port 3 of the second polarization branch 14 (564) to communicate with each other, the second polarization branch 16 566 and the second polarization distribution pipe 18 (568) are connected to and connected to port 2 and the port 3 of the second polarization distribution pipe 17 (567). Port 1 of the second polarization branch 14 (564) extends between the second polarization guide 18 (518) and the second polarization guide 19 (519), and then a second polarization outside the second polarization guide 27 (527). Bending toward the guide 28 (528) side, the port 1 of the second polarization distribution pipe 17 (567) extends between the second polarization guide 22 (522) and the second polarization guide 23 (523), and then the second polarization guide 30 ( The outside of the 530 is bent toward the second polarization guide 29 (529). The bent second polarization distribution pipe 14 564 and the second polarization distribution pipe 17 567 are respectively connected to ports 3 and 2 of the second polarization distribution pipe 31 581. A second polarization outflow hole 600 is formed in the port 1 of the second polarization distribution pipe 31 581 for the inflow and outflow of the second polarization.

In the dual linearly polarized horn array antenna according to the present example according to this structure, a process of discharging the second polarized wave along the second polarized guide 50 to be discharged to the second polarized inlet hole 600 will be described below.

The second polarization guides 1, 2, 9, 10 (501, 502, 509, 510) and the second polarization guides from the second polarization guides 17, 18, 25, and 26 (517, 518, 525, 526) are mixed in the second polarization distribution pipe 13 (563), and The second polarization guides 3, 4, 11, 12 (503, 504, 511, 512) and the second polarization guides from the second polarization guides 19, 20, 27, 28 (519, 520, 527, 528) are mixed in the second polarization distribution pipe 15 (565). And the second polarization from the second polarization branch 13 (563) and the second polarization branch 15 (565) is mixed in the second polarization branch 14 (564).

Similarly, the second polarization guides 5, 6, 13, 14 (505, 506, 513, 514) and the second polarizations from the second polarization guides 21, 22, 29, 30 (521, 522, 529, 530) are mixed in the second polarization distribution line 16 (566). , The second polarization guides 7, 8, 15, 16 (507,508, 515, 516) and the second polarizations from the second polarization guides 23, 24, 31, 32 (523, 524, 531, 532) are mixed in the second polarization distribution tube 18 (568). And the second polarization from the second polarization branch 16 (566) and the second polarization branch 18 (568) is mixed in the second polarization branch 17 (567).

On the other hand, the second polarization from the second polarization branch 14 (564) and the second polarization from the second polarization branch 17 (567) is mixed in the second polarization branch 31 (581) to the second polarization outflow hole ( Through 600).

The second polarization branch pipes 1 to 2nd polarization branch pipes 31 (551 to 581) have the same number of second polarization guides 50 connected to the port 2 and the port 3, respectively. That is, the second polarization distribution pipes 1 to 2nd polarization distribution pipes 31 (551 to 581) are 1: 1 dividers. However, the second polarization distribution pipes 1 to 31 (551 to 581) may be formed in different shapes depending on their positions.

49 (a) and 49 (b) are plan views showing each embodiment of the 1: 1 divider.

The first polarization branch pipes 1 to 31 (351 to 381) and the second polarization branch pipes 1 to 31 (551 to 581) may be configured by using a 1: 1 divider.

One embodiment of the 1: 1 divider 700 is connected to the first polarization guide 30 or the second polarization guide 50 and has a straight line having a port 1 and a port 2, as shown in FIG. It has a tube 710 and a branch tube 720 branching from the central region of the straight tube 710 and having port 3. Here, the straight tube 710 has a plurality of steps 705 so that the width becomes narrower toward the central region, the step 705 is formed on the wall connected to the branch pipe 720 of the straight pipe. The number of steps 705 or the distance between the steps 705 may be determined according to the frequency of the first polarization or the second polarization, and the steps 705 may be formed on a wall opposite the branch pipe 720 of the straight pipe 710. Of course, it may be formed. In addition, a distribution protrusion 707 protruding inwardly is formed in a wall of the straight tube 710 in a wall facing the branch pipe 720.

According to another embodiment, the 1: 1 distributor 750 is formed in a 'T' shape having a straight pipe 760 and a branch pipe 770, as shown in FIG. The straight tube 760 having the port 2 is formed to be wider toward the center area. To this end, a depression 755 is formed in the straight tube 760, and the depression 755 is formed on a wall opposite to the branch pipe 770. The number or depth of the depressions 755 may be determined according to the frequency of the first polarization or the second polarization, and the depressions 755 may be formed on a wall connected to the branch pipe 770 of the straight pipe 760. Of course. A distribution protrusion 757 protruding toward the branch pipe is formed in the central region of the depression 755.

50 (a) to 50 (c) are plan views showing each embodiment of the m: n distributor.

The first polarization distribution pipes 1 to 31 (351 to 381) and the second polarization distribution pipes 1 to 31 (551 to 581) described above may be configured using an m: n distributor.

The m: n distributor 800 according to the first embodiment includes a straight pipe 810 connecting port 2 and port 3 and a branch pipe 820 having port 1, as shown in FIG. It includes, and the width of the port 1 to port 3 is the same. The straight pipe 810 is formed with a plurality of steps 805 so that the width becomes narrower from the port 2 and the port 3 toward the center area. At this time, the step 805 formed on the port 2 side is formed such that the length of each step 805 is slightly longer, or the length of each step 805 is substantially the same toward the center region of the straight pipe 810. On the other hand, the port 3 side is formed by mixing a short step and a long step. The step 805 formed in the straight tube 810 is formed on the wall to which the branch pipe 820 is coupled, but may be formed on the wall opposite to the branch pipe 820. An asymmetrical protrusion 807 protruding toward the branch pipe 820 is formed in the wall of the straight pipe 810 in the wall opposite to the branch pipe 820. The asymmetric protrusion 807 is formed in a shape in which a square pillar and a triangular pillar are coupled to each other, and are formed adjacent to the port 2.

The m: n distributor 850 according to the second embodiment includes a straight pipe 860 connecting port 2 and port 3 and a branch pipe 870 having port 1 as shown in FIG. 50 (b). It includes, and the width of the port 2 and the port 3 is the same, the width of the port 1 is formed twice the port 2 and the port 3. The straight tube 860 is formed with a plurality of steps 855 so that the width thereof becomes narrower toward the center region. On the port 2 side, short and long steps are mixed and formed, and on the port 3 side, a plurality of relatively long steps are formed. Each step 855 of the straight tube 860 is formed on a wall to which the branch pipe 870 is coupled, but may be formed on a wall opposite to the branch pipe 870, and on the wall opposite to the branch pipe 870. As in the first embodiment, an asymmetric protrusion 857 is formed.

The m: n distributor 900 according to the third embodiment includes a straight pipe 910 connecting port 2 and port 3 and a branch pipe 920 having port 1, as shown in FIG. 50 (c). It includes, and the width of the port 2 and the port 3 is the same, the width of the port 1 is formed twice the width of the port 2 and the port 3. In addition, a distribution protrusion 907 protruding toward the branch pipe 920 is formed in the central region of the straight pipe 910.

On the other hand, in the above-described use example of the dual linearly polarized horn array antenna 1, the first polarization branch pipes 1 to 31 (351 to 381) and the second polarization branch pipes 1 to 31 (551 to 581) are ports 2 and ports. Although the amount of the first polarization or the second polarization input to 3 is the same, the m: n divider is almost used. This is to make the radiation pattern of the first polarized wave or the second polarized wave incline to one side when it is necessary to configure the direction according to the use of the antenna, the illustrated antenna is configured according to an embodiment, the first The polarization branch pipes 1 to 31 (351 to 381) and the second polarization branch pipes 1 to 31 (551 to 581) are 1: 1 shown in Figs. 49 (a) to 49 (b) depending on the purpose or performance of the antenna. In addition to the distributor, the m: n distributor shown in FIGS. 50 (a) to 50 (c) may be configured.

The dual linearly polarized horn array antenna 1 of the present dual linear polarization horn array antenna 1 forms the first and second protrusions 17 and 18 in the horn 10 while maintaining the efficiency of the antenna 1. You can reduce the height. As the left and right widths of the first polarization guide 30 and the second polarization guide 50 are formed higher than the height, the horizontal and horizontal sizes of the antenna may be reduced. In addition, although the size is reduced, as shown in Table 1, the antenna performance of the horn array antenna 1 can be maintained. In addition, the dual linearly polarized horn array antenna 1 is easy to manufacture because the height of each of the first polarization guide 30 and the second polarization guide 50 is uniform.

Although the first polarization and the second polarization have been described based on the electric field, they may be applied to the magnetic field. In addition, as a configuration for manufacturing the horn 10, the first polarization guide 30, the second polarization guide 50 according to an embodiment of the present application, the above-described embodiment is illustrative only. If necessary, at least two or more of the horn 10, the first polarization guide 30, and the second polarization guide 50 may be manufactured at a time by the same method as injection molding. In manufacturing the horn 10, the first polarization guide 30, the second polarization guide 50 according to an embodiment of the present application, it is not limited to the number of layers shown in Figs.

Meanwhile, in order to further increase the reception efficiency of the second polarized wave in the dual linearly polarized horn array antenna described so far, the electric field direction of the incident second polarized wave is located on the short side of the lower portion of the polarized filter 20 as shown in FIG. 51. Should be parallel. If the electric field direction of the incident second polarized wave as shown in FIG. 52 is not parallel to the short side of the lower portion of the polarization filtering unit 20, the reception efficiency of the second polarized wave in the dual linearly polarized horn array antenna is not good. .

However, even if the electric field direction of the incident second polarized wave is not parallel to the short side of the lower portion of the polarization filtering unit 20, as shown in FIG. 53, if the dual linearly polarized horn array antenna is provided with a comb-shaped skew filter, Therefore, the reception efficiency of the second polarization can be improved.

The comb teeth formed in the skew filter are preferably perpendicular to the electric field direction of the incident second polarized wave. The comb teeth formed in the skew filter shown in FIG. 53 are inclined at 30 degrees.

On the other hand, the angle at which the second polarization is incident depends on the position (latitude and longitude) of the area where the dual linearly polarized horn array antenna is to be used. It means you can calculate. Therefore, the inclination angle of the comb teeth to be formed in the skew filter may be determined based on the latitude and longitude of the region where the second polarization is to be received.

In addition, the skew filter may be implemented by a conductive material such as copper, nickel, iron, or the like, by implementing a synthetic resin by plating a conductive material. And, the thickness of the skew filter is preferably 0.03mm ~ 1mm, it can be implemented in a different thickness as needed.

54 to 61 illustrate specific methods of applying a skew filter to the aforementioned dual linearly polarized horn array antenna.

The first method is a method of placing a skew filter formed in the form of a film on top of the first layer 100, as shown in FIG. As shown in FIG. 55, the second method is a method of directly forming a skew filter on the top of the first layer 100.

According to the first and second methods, a skew filter is formed on top of the horn 10. The end of the comb teeth formed on the skew filter is in contact with the outer opening edge of the horn 10.

Meanwhile, as shown in FIG. 56, the third method is to insert a skew filter manufactured in the form of a film between the first layer 100 and the second layer 150. And, the fourth method is a method of directly forming the skew filter on the second layer 150, as shown in FIG.

According to the third and fourth methods, the skew filter is formed at the bottom of the horn 10. The end of the comb teeth formed on the skew filter is in contact with the lower edge of the horn 10.

delete

The fifth method is a method of inserting a skew filter formed in a film form between the second layer 150 and the third layer 200, as shown in FIG. And, the sixth method is a method of directly forming the skew filter on the upper part of the third layer 200, as shown in FIG.

According to the fifth and sixth methods, the skew filter is formed at the center of the polarization filtering unit 20. The tip of the comb teeth formed on the skew filter is in contact with the wall of the polarization filtering part 20.

The seventh method is a method of inserting a skew filter formed in a film form between the third layer 200 and the fourth layer 250, as shown in FIG. In an eighth method, as shown in FIG. 61, a skew filter is directly formed on the fourth layer 250.

According to the seventh and eighth methods, the skew filter is formed under the polarization filtering unit 20. The tip of the comb teeth formed on the skew filter is in contact with the wall of the polarization filtering part 20.

On the other hand, there is no restriction on the number of comb teeth formed in the skew filter, it can be implemented in one or more numbers as necessary. There is no restriction on the width and spacing of the comb teeth formed on the skew filter. In addition, the end of the comb teeth can be rounded to implement a curved shape. 62 to 66 show variations of the skew filter.

On the other hand, the end of the comb teeth formed in the skew filter may be implemented so as not to contact the horn 10 or the polarization filtering unit 20. Even in this case, the tip of the comb can be rounded to realize a curved shape. 67 to 69 illustrate skew filters implemented so that the tip of the comb teeth does not come into contact with the wall of the polarization filtering unit 20. The skew filters shown are one comb, but it is also possible to implement two or more combs.

However, a skew filter having a shape in which the tip of the comb does not contact the wall of the polarization filtering unit 20 may be implemented in the form of a film. In this case, the skew filter may be non-conductive to fix the position of the comb formed in the skew filter. Coating with a thin film of material is required.

The shape of the comb teeth formed in the skew filter can be implemented in shapes other than those shown above.

On the other hand, in the horn 10 provided in the dual linearly polarized horn array antenna presented in the present embodiments, the polarization filtering unit 20 is parallel to the horn 10 (that is, each side of the edge of the polarization filtering unit 20 is a horn. (10) parallel to each side of the rim. However, when the polarization filtering unit 20 and the horn 10 are not parallel to each other, for example, as shown in FIG. 70, each side of the edge of the polarization filtering unit 20 is 45 with each side of the rim 10. Even when the figure is achieved, it is possible to apply the skew filter according to the present invention.

In addition, in the above-described embodiments, a case in which the dual linearly polarized horn array antenna receives polarization is described as an example, but it is also possible in the case of transmitting polarization.

In addition, two skew filters may be used to overlap each other, and a spacer may be inserted to give a constant distance between the dual linearly polarized horn array antenna and the skew filter or between the skew filters.

The spacer may be embodied, for example, in paper, wood lock or thin sponge plates. Since the spacer is inserted to give an interval (for example, several mm) between the dual linearly polarized horn array antenna and the skew filter or between the skew filters, it is not preferable to be made of a material that prevents transmission and reception of radio waves. For example, it is not preferable to form a spacer with a highly conductive material.

The structure of the spacer may be rectangular in shape with a constant height (eg several mm) as in FIG. 71 or 72. The square width and width of the quadrangle preferably correspond to the skew filter. However, the rectangular width and width of the quadrangle are not necessarily corresponding to the skew filter.

Referring to FIG. 71, the spacer 441 has a structure corresponding to a skew filter as a rectangular spacer whose center is blocked. The length and width of the spacer 441 need not necessarily coincide with the length and width of the skew filter. This is because the spacing between the skew filter and the dual linearly polarized horn array antenna is sufficient.

Referring to Fig. 72, the spacer 443 is a rectangular spacer with an empty center. Although the spacer 443 is empty in the middle, a structure having a shape like a grate may be provided in the center of the spacer 443.

The spacer described above may be provided between the skew filter and the dual linearly polarized horn array antenna, and may be provided between the skew filter and the skew filter.

Until now, the dual linearly polarized horn array antenna to which the skew filter is applied has been illustrated and described. However, only the skew filter may be manufactured and used.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will understand that the present invention can be embodied in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown not in the above description but in the claims, and all differences within the scope should be construed as being included in the present invention.

1 is a cross-sectional view of a horn of a common horn antenna,

2 is a plan view illustrating an antenna unit of a dual linearly polarized wave array antenna according to the present invention;

3 and 4 are a perspective view and a perspective view, respectively, of the antenna unit of FIG.

5 is a perspective view of a horn of a dual linearly polarized horn array antenna according to an embodiment of the present invention;

6 is a perspective perspective view of the horn of FIG. 5, FIG.

7 is a perspective side view of the horn of FIG. 5, FIG.

8 is a partial cutaway perspective view of the horn of FIG. 5, FIG.

9 (a) and 9 (b) are perspective views and perspective views showing an electromagnetic wave moving space by separating only the polarization filtering unit from the horn of FIG. 5;

10 (a) and 10 (b) are a perspective view and a perspective view of the polarization filtering part of FIG. 9 viewed from different angles,

FIG. 11 is a plan view of the polarization filtering part of FIG. 10 viewed from above;

12 (a) to 12 (c) are side views of polarization filtering units having radiating protrusions 22 having different shapes, respectively;

13 is a side view of a polarization filtering unit according to another embodiment of the present invention;

14 (a) to 14 (c) are plan views of horns showing examples in which interference protrusions of a polarization filtering unit are formed in a quadrangle, a triangle, and a semicircle, respectively;

14 (d) to 14 (f) are plan views of horns showing examples in which the interference rejection grooves of the polarization filtering unit are formed in quadrangular, triangular, and semicircular shapes;

15 is a simplified side cross-sectional view of a horn in accordance with an embodiment of the present invention;

16 is a simplified side cross-sectional view of a horn having the same length as the outer opening of the same size as the horn of FIG. 15,

FIG. 17 is a simplified side sectional view of a horn having the same performance as the horn of FIG. 15;

18 (a) and 18 (b) are a perspective view and a perspective view in which the first polarization guide and the second polarization guide of FIG. 2 are combined;

19 (a) is a plan view of the first polarization guide in a state that the polarization filtering unit is coupled;

19 (b) is a perspective view of the first polarization guide of FIG. 19 (a),

19 (c) is a perspective view of the first polarization guide of FIG. 19 (b),

20 (a) is a plan view of the second polarization guide,

20 (b) is a perspective view of the second polarization guide of FIG. 20 (a),

20 (c) is a perspective view of the second polarization guide of FIG. 20 (b),

21 is an exploded perspective view of each layer of the dual linearly polarized horn array antenna according to the present invention;

FIG. 22 is a plan view of the first layer of FIG. 21;

FIG. 23 is a perspective view of the first layer of FIG. 21;

24 is a plan view of the second layer of FIG. 21;

25 is a perspective view of a second layer;

26 is a rear view of the second layer,

FIG. 27 is a plan view of the third layer of FIG. 21;

28 is a perspective view of a third layer;

29 is a rear view of the third layer,

30 is a plan view of the fourth layer of FIG. 21,

31 is a perspective view of a fourth layer;

32 is a rear view of the fourth layer;

33 is a plan view of a fifth layer;

34 is a perspective view of a fifth layer;

35 is a perspective view of a usage example of the horn array antenna according to the present invention;

36 is a perspective view of a first layer;

37 is a plan view of a second layer,

38 is a perspective view of a second layer;

39 is a rear view of the second layer,

40 is a plan view of a third layer of the horn array antenna of FIG. 35;

41 is a perspective view of a third layer;

42 is a rear view of the third layer,

43 is a plan view of the fourth layer of FIG. 35;

44 is a perspective view of a fourth layer;

45 is a rear view of the fourth layer;

46 is a front view of the fifth layer of FIG. 35;

47 is a perspective view of a fifth layer;

48 is a rear view of the fifth layer;

49 (a) and 49 (b) are plan views showing an embodiment in which the first and second polarization distribution pipes are configured with a 1: 1 divider;

50 (a) to 50 (c) are plan views showing an embodiment in which the first and second polarization distribution pipes are composed of an m: n distributor;

51 to 53 are provided for explaining the concept of the skew filter,

54 to 61 are views showing a specific method of applying a skew filter to a dual linearly polarized horn array antenna;

62 to 66 show variants of the skew filter,

67 to 69 illustrate skew filters implemented so that the end of the comb teeth does not contact the edge of the inner opening;

70 is a diagram illustrating an example in which a skew filter is applied when the horn and the polarization filtering unit are not parallel to each other; and

71 and 72 show examples of spacers.

Claims (7)

In the dual linearly polarized horn array antenna for receiving a first polarization and a second polarization, A plurality of horns in which the first and second polarized waves are incident together; A plurality of polarization filtering units provided in the horns and separating the first polarized wave and the second polarized wave respectively incident together; A first polarization guide for guiding a first polarization separated from the polarization filtering parts; And And a second polarization guide for guiding a second polarization separated from the polarization filtering parts. An upper portion of the polarization filtering part has a rectangular cylinder shape, Steps protruding toward an inner space are formed in a lower portion of the first walls among the four walls formed in the polarization filtering portion, and the lower portion of the polarization filtering portion has a rectangular cylinder shape narrower than the upper width thereof. A protruding portion is formed at the top of the step, A first polarized inflow path for providing the first polarized wave to the first polarized wave guide is formed on the second wall facing the first wall. On the back of the dual linearly polarized horn array antenna, The first polarized wave guided by the first polarized guide guided out of the dual linearly polarized horn array antenna and the second polarized wave mixed while guided by the second polarized guide are dual A second polarization outflow hole is formed which exits the linearly polarized horn array antenna. The first polarization guide, A first guide tube configured to receive first polarized waves separated from the first polarized wave filtering part and the second polarized wave filtering part through the both ends of the polarized wave filtering parts; And a second guide tube configured to receive first polarized waves separated from a third polarization filtering unit and a fourth polarization filtering unit among the polarization filtering units through both ends thereof. 2. The method of claim 1, Dual linearly polarized horn array antenna, characterized in that the skew filter is mounted at any one of the top of the horn and the bottom of the horn. The method of claim 1, Skew Filter And a skew filter is mounted at any one of a center portion of the polarization filtering portions and a lower portion of the polarization filtering portions. The method according to claim 2 or 3, The skew filter is a dual linearly polarized horn array antenna, characterized in that formed in the form of a removable film. The method of claim 4, wherein When the skew filter is formed on the top of the horns, the skew filter is in the shape of a comb teeth abutting the edge of the opening formed on the top of the horns, When the skew filter is formed in the lower portion of the horns, the skew filter is in the shape of a comb teeth in contact with the edge of the opening formed in the lower portion of the horns, And the skew filter is formed in one of a center portion of the polarization filtering portion and a lower portion of the polarization filtering portion, and the skew filter has a comb-tooth shape in contact with the polarization filtering portion. The method of claim 1, The protruding portion is a dual linearly polarized horn array antenna, characterized in that the shape of any one of rectangular, oval, or semicircular. The method of claim 1, The step is Dual linearly polarized horn array antenna, characterized in that formed from a position spaced downward from the top of the first wall.

Images