KR101546777B1 - Dual linear polarization horn array type antenna using skew filter - Google Patents

Abstract

A dual linearly polarized horn array antenna with skew filter is provided. A dual linearly polarized wave horn array antenna according to the present invention includes a plurality of polarization filtering units for separating a first polarized wave and a second polarized wave that are incident on a plurality of horns and horns into which first and second polarized waves are incident together, A first polarization guide for guiding the first polarized wave separated from the filtering units, a second polarization guide for guiding the second polarized wave separated from the polarization filtering units, and a skew filter. Accordingly, it is possible to receive polarized waves having an electric field direction unsuitable for reception by the antenna, and it is possible to further increase the reception efficiency of the antenna.

Antenna, horn, guide, skew filter, comb

Description

[0001] The present invention relates to a dual linear polarization horn array antenna using a skew filter,

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

As a satellite antenna, a microstrip patch array antenna using a dielectric substrate, a waveguide slot array antenna for obtaining a high efficiency antenna characteristic, or a horn antenna is generally used.

In the conventional waveguide slot array antenna, a satellite broadcast signal is transmitted through a waveguide, thereby reducing resistance loss and radiation loss. However, as in the case of a general satellite antenna, there is a problem that a skew occurs when receiving linearly polarized waves, and a satellite signal received according to the skew angle is lost.

The conventional satellite reception antennas are designed to receive only the satellite signals coming in the horizontal or vertical direction. Therefore, the satellite signals received in the horizontal or vertical directions are distorted due to local differences, latitude and longitude differences, It is impossible to properly receive the satellite signal that is distorted by the satellite signal.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual linear polarization horn array antenna in which a skew filter is applied to receive polarized waves having an electric field direction unsuitable for receiving an antenna .

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

The skew filter preferably has a comb-like shape.

The angle of the comb 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 enters, and a position of an area where the horn array antenna is used.

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

The skew filter may be formed on an upper portion of the horns, a lower portion of the horns, a central portion of the polarization filtering portion, and a lower portion of the polarization filtering portion.

When the skew filter is formed on the upper portion of the horns, the skew filter is in the form of a comb that abuts the rim of the opening formed on the upper portion of the horns. When the skew filter is formed on 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, the skew filter may have a comb-like shape in contact with the polarization filtering portion, have.

The skew filter may be formed in a film form and may be attached to an upper portion of the horns, or a lower portion of the horns, a central portion of the polarization filtering portion, or a lower portion of the polarization filtering portion.

According to the present invention, by adopting the skew filter, it becomes possible to receive a polarized wave having an electric field direction unsuitable for reception by the antenna. 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 linear polarized wave horn array antenna according to the embodiment of the present invention performs both the function of receiving electromagnetic wave and the transmission of electromagnetic wave. However, in order to facilitate the explanation in the following embodiments, The respective components of the dual linearly polarized horn array antenna will be described, and the role of transmitting electromagnetic waves will be described hereinafter.

Meanwhile, in the embodiment of the present invention, the first polarized wave is Horizontal Polarization, which is a polarized wave parallel to the equator of the earth, and the second polarized wave is Vertical Polarization, which is perpendicular to the earth's equator.

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

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

A first polarized wave guide 30 is formed in a lower portion of each horn 10 and a second polarized wave guide 50 is formed in a lower portion of the first polarized wave guide 30 . Here, the horn 10 and the first and second polarization guides 30 and 50 are spaces through which electromagnetic waves travel, and each layer for forming the horn 10, the first and second polarization guides 30 and 50, Will be described later.

The antenna unit shown in Figs. 2 to 4 shows the smallest unit capable of processing the first polarization and the second polarization in the dual linearly polarized horn array antenna. One antenna unit includes four horns 10, and a first polarization guide 30 and a second polarization guide 50, respectively. Hereinafter, the dual linear polarization horn array antenna 1 will be described with reference to the antenna unit.

FIG. 5 is a perspective view of a horn of a dual linearly polarized wave horn array antenna to which the present invention is applicable, FIG. 6 is a 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 partially cutaway perspective view of the horn of FIG.

The horn 10 guides the electromagnetic wave so that the first polarized wave and the second polarized wave having mutually orthogonal directions are incident on the incidence plane. The horn 10 has an inclined portion 15 formed in a quadrangular pyramid shape, And a polarization filtering unit 20.

The inclined portion 15 is formed so as to taper along the traveling direction of the electromagnetic wave, and both ends open along the traveling direction of the electromagnetic wave. The openings opened outward at both ends of the inclined portion 15 are referred to as the outer openings and the openings formed at the inner end of the narrowed inner end of the inclined portion 15 as the inner openings. A first protruding protrusion 17 protruding from the edge portion to the central region is formed in the inner opening. The first protruding protrusion 17 is protruded by a predetermined width along the circumference of the inner opening. The inclined portion 15 is formed with a second protruding protrusion 18 protruding along the circumferential direction of the inclined portion 15 on an inclined surface between the outer opening and the first protruding protrusion 17, 18 are formed in parallel with the first projecting step 17. By forming at least one of the first and second protrusions 17 and 18, the performance of the horn antenna can be substantially maintained or improved, thereby reducing the height of the horn antenna. The present embodiment has two protruding protrusions 17 and 18, but this is merely exemplary and it is needless to say that the number of protruding protrusions 17 and 18 can be changed.

FIGS. 9A and 9B are a perspective view and a perspective view showing the electromagnetic wave moving space by separating only the polarization filtering section from the horn of FIG. 5, FIGS. 10A and 10B, Fig. 11 is a plan view of the polarization filtering section of Fig. 10, and Figs. 12 (a) to 12 (c) each show a radiation projection 22 having a different shape Fig.

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

To this end, the polarization filtering unit 20 is formed to have a narrower width from the upper portion connected to the inclined portion 15 toward the lower portion. The uppermost portion of the polarization filtering unit 20 connected to the inner opening of the inclined portion 15 is formed in a rectangular shape extending downward from the inner side edge of the first projecting step 17 and one side wall of the polarization filtering unit 20 And protrudes toward the inner space from a position spaced apart from the first projecting step 17 by a predetermined width. Accordingly, the width of the polarization filtering unit 20 is narrowed in one direction and formed into a rectangular shape, and at this time, the width in the same direction as the direction of the electric field of the second polarized wave is narrowed.

A first polarized wave inflow path 21 for guiding the first polarized wave that can not advance to the lower portion of the polarization filtering unit 20 to the first polarized waveguide 30 is formed on the one side wall protruding inward as described above. 11, the first polarized wave inflow passage 21 is formed in a long rectangular shape along the moving direction of the first polarized wave and is arranged in a central region along the width direction of one side wall of the polarization filtering section 20 . A radial projection 22 protruding toward the inside of the first polarized-wave inflow passage 21 is formed in a lower portion of the inlet side of the first polarized-wave inflow passage 21. The radial projection 22 is connected to the first polarized- 21, and the inner lower portion of the first polarized-wave inflow passage 21 is formed in a stepped shape.

The radiation projections 22 serve to narrow the inlet side of the first polarized wave inflow path 21 in the vertical direction and are connected to the first polarized wave inflow path 21 from the polarization filtering section 20 by the radiation projections 22 It is possible to improve the feeding characteristics of the incoming first polarized wave. The radiating projections 22 can be formed in various shapes. For example, as shown in Fig. 12 (a), it may be formed to protrude on a step of a quadrangle. As shown in Fig. 12 (b), the polarization- Or may be formed so as to be connected in an oblique manner, or may be formed to protrude in a curved shape as shown in FIG. 12 (c).

On the other hand, a step 25 is formed in a lower portion of the first polarized-wave inflow passage 21, one side wall having the first polarized-wave inflow passage 21 formed thereon and an opposite wall protruding inward. Only one step 25 may be formed, a plurality of steps 25 may be formed, only one side wall may be formed, or both side walls and opposite walls may be formed. In the polarization filtering section 20 shown in Figs. 12 (a) to 12 (c), two steps are formed on one side wall and both sides of the opposite wall. In contrast, the polarization filtering unit 20 shown in FIG. 13 is formed with a step on only one side wall, and a plurality of steps are formed at regular intervals from the upper part of the polarization filtering unit 20.

The width of the polarization filter 20 is narrowed in one direction by the step 25 so that the first polarized wave and the second polarized wave passing through the polarization filtering unit 20 are separated from each other, And the second polarized wave guide 50 are provided. At this time, the first polarized wave having the same width direction as the wide width of the polarized wave filtering unit 20 is provided to the first polarized wave guide 30, and the second polarized wave having the same electric field direction as the narrow width of the polarized wave filtering unit 20 And is provided to the second polarized waveguide 50. The second polarized waveguide 50 includes a first polarized waveguide 50 and a second polarized waveguide 50, The number, size and length of the step 25 can be changed according to the frequency of the second polarized wave guided to the second polarized wave guide 50.

On the other hand, an interference protrusion 19 protruding from the opposed wall is formed in the region facing the first polarized-wave inflow passage 21 in the opposed wall. The interference protrusion 19 is formed to exclude the second polarized wave from being interfered with by the first polarized waveguide 30, and the shape of the interference protrusion 19 may be various shapes such as a rectangle, a rectangle, an ellipse, and a semicircle. Figs. 14 (a) to 14 (c) show examples in which the interference protrusions 19 are formed in a quadrangular, triangular, or semicircular shape, respectively.

Instead of the interference projection 19, a wall surface opposed to the first polarization inflow path 21 may be recessed to form the interference elimination groove 19a. The interference exclusion grooves 19a are formed in a shape of a quadrangle, a rectangle, a triangle, an ellipse, a semicircle, or the like at a position where the interference protrusions 19 are formed. Fig. 14 (d) to Fig. 14 (d) show examples in which the interference eliminating grooves 19a are recessed in a quadrangular, triangular or semicircular shape.

The S11 parameter of the first polarization is improved as the interference of the second polarization is eliminated by the interference protrusion 19 or the interference elimination groove 19a and the structure of the interference protrusion 19 or the interference elimination groove 19a is The positions and sizes of the first and second polarized waveguides can be changed according to the structure of the first and second polarized waveguides and the frequency of the first and second polarized waveguides.

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, Fig.

The length of the horn 110 shown in the present invention and 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 horns 10, 110 and 210 is equal to 48.0 mm. The antenna gain by these three horns 10, 110 and 210 is compared with 11.7 GHz, 12.7 GHz in the upper band, and 10.7 GHz in the lower band, among the 10.7 GHz to 12.75 GHz of the satellite broadcasting band (KU BAND) Lt; / RTI >

Invention 16 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 210 of the embodiment shown in FIG. 17, which is designed to be 10.0 mm longer than the horn 10 to which the present invention is applicable, has the same performance . However, the horn 110 of FIG. 16, which has the same length and the same outer opening size as the horn 10 to which the present invention is applicable, has a lower horn 10 than the horn 10 to which the present invention is applicable, It can be seen that the antenna gain is small by 0.7 dBi in the 11.7 GHz band and 0.5 dBi in the 12.7 GHz band. In general, when the difference in antenna gain is 1 dBi, the performance is improved by 33%. Therefore, it can be seen that the performance of the horn 10 to which the present invention is applicable is improved by about 18% as compared with the conventional horn of the same size. Since the height of about 10 mm can be shortened as compared with the horn 210 of FIG. 17 having the same performance, the size of the antenna can be reduced.

That is, even if only the first projecting step 17 is formed at 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 perspective view in which the first polarized waveguide and the second polarized waveguide of FIG. 2 are combined, FIG. 19 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 polarized waveguide 30 guides the first polarized wave incident on the four horns 10 and emits the first polarized wave formed on the four polarized wave filtering units 20 on the four sides of the first polarized waveguide 30, And four openings connected to the inflow path 21 are formed.

The first polarization guide 30 includes a first guide pipe 31 and a second guide pipe 32 connecting the pair of adjacent first polarized-wave inflow passages 21, a first guide pipe 31, And a first mixing pipe (45) extending from a central region of the first intermediate pipe (40).

Both end portions of the first guide pipe 31 are connected to the pair of first polarized wave inflow passages 21 so that both end portions of the first guide pipe 31 and each of the first polarized wave inflow passages 21 form a right angle . At both ends of the first guide tube 31, a pair of first inlet guide surfaces 33 are formed, the outer corner areas of which are connected to the first polarized inlet 21 and are inclined at an angle. Accordingly, the first polarized wave introduced through the pair of first polarized-wave inflow passages 21 is guided to the first guide pipe 31 by the first inflow guide surface 33 changing its traveling direction.

A pair of first polarized influx inflow passages 21 are also connected to both ends of the second guide pipe 32 and a pair of second inflow guide faces 34 are formed. As a result, the second polarized wave introduced through the pair of first polarized-wave inflow passages (21) travels toward the second guide pipe (32) by the second inflow guide surface (34).

The first guide tube 31 and the second guide tube 32 are formed such that the width of the central region of each tube is narrower than the width of both ends. For this purpose, the first guide tube 31 and the second guide tube 32 Diameter portions 35 and 36 protruding toward the inside of the pipe are formed in the central region of the pipe. The first mixing pipe 40 and the first mixing pipe 45 are formed in accordance with the widths of the first guide pipe 31 and the second guide pipe 32 formed according to the extent of the projecting diameter of the reduced diameter portions 35, The center frequency of the incident first polarized wave is determined. That is, by adjusting the width and length of the reduced diameter portions 35 and 36, the center frequency of the first polarized wave incident on the first mixing pipe 45 can be shifted.

In the present embodiment, the reduced diameter portions 35 and 36 are formed on one side wall to which the first guide pipe 31 and the second guide pipe 32 and the first intermediate pipe 40 are connected, Or may be formed on a wall surface opposite to the one side wall to which the first wall 40 is connected, or may be formed on the wall surface opposite to the one side wall.

The first guide pipe 31 and the second guide pipe 32 are arranged in parallel so that the first inlet guide surface 33 and the second inlet guide surface 34 are inclined in the same direction.

The first intermediate pipe 40 interconnects the central region of the first guide pipe 31 and the second guide pipe 32 and the first guide pipe 31 and the second guide pipe 32 are connected to both ends of the first intermediate pipe 40, A pair of bending pipe portions 41 extending a predetermined length from the region connected to the guide pipe 32 and being bent obliquely in one direction are formed. Each bending tube portion 41 is connected to each other by a straight tube portion, and the straight tube portion is formed to be narrower than the width of the bending tube portion 41 by a predetermined width.

A first mixing pipe 45 for mixing the first polarized waves introduced from the first guide pipe 31 and the second guide pipe 32 is formed in a central region of the straight pipe portion of the first intermediate pipe 40 . The first mixing pipe 45 extends from the central region of the first intermediate pipe 40 and is firstly bent so as to be parallel to the first intermediate pipe 40 and then is bent to be perpendicular to the first intermediate pipe 40 So that it is formed in an 'a' shape. The first and second bending regions of the first mixing tube 45 have oblique first and second inclined faces 46 and 47 formed in the outer corner regions, respectively, to change the traveling direction of the first polarized wave. Accordingly, the first polarized wave from the first relay pipe 40 is mixed in the first mixing pipe 45, and the direction of travel is changed by the first and second inclined surfaces 46 and 47 to flow out from the antenna unit . The first polarized wave discharged from the antenna unit is mixed with the first polarized wave discharged from the other antenna unit and discharged to the outside. The movement of the first polarized wave discharged from the antenna unit will be described later.

In this first polarization guide 30, both ends of the first guide tube 31 are symmetrically formed, and both end portions of the second guide tube 32 are symmetrically formed. As a result, the first polarized waves introduced into both end portions of the first guide pipe 31 become the same in phase when they reach the first intermediate pipe 40, The first polarized wave also becomes equal in phase when it reaches the first intermediate tube 40. [ Accordingly, the first polarized wave that flows into both end portions of the first guide pipe 31 and merged in the first intermediate pipe 40 and the first polarized wave that flows into both end portions of the second guide pipe 32, It is possible to prevent the first polarized wave from being canceled or deformed by the phase difference.

Fig. 20A is a plan view of the second polarized wave guide, Fig. 20B is a perspective view of the second polarized wave guide of Fig. 20A, Fig. 20C is a perspective view of the second polarized wave guide of Fig. It is a perspective view.

The second polarized waveguide 50 is disposed in parallel with the first polarized waveguide 30 and receives and outputs a second polarized wave transmitted through the polarized wave filtering unit 20.

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

The first to fourth direction switching units 51, 52, 53 and 54 are connected to the polarization filtering unit 20, respectively. The direction switching units 51, 52, 53, A reflecting surface 69 is formed. The protruding end 68 protrudes upward from the bottom surface of each of the direction changing portions 51, 52, 53, 54 at the end portion of each of the direction changing portions 51, 52, 53, 54 toward the polarization filtering portion 20 And one side wall connected to the third and fourth guide pipes 55 and 60 is formed in a rectangular shape formed at an angle. The second polarized wave having the electric field direction along the narrow width of the polarization filtering section 20 changes its traveling direction when it meets the protruding end 68. The reflecting surface 69 is formed obliquely at a predetermined angle on the surface opposed to the protruding end 68. The reflecting surface 69 reflects the second polarized wave whose traveling direction is changed by the protruding end 68 and passes through the third and fourth guide pipes 55 , 60).

The first direction switching unit 51 and the second direction switching unit 52 are formed in parallel so that the positions of the reflecting surface 69 and the protruding end 68 correspond to each other, The direction changing portion 54 is also formed in parallel so that the positions of the reflecting surface 69 and the protruding end 68 correspond to each other. The reflecting surfaces 69 of the first direction switching unit 51 and the third direction switching unit 53 are symmetrically formed in an mirror image and the second direction switching unit 52 and the fourth direction switching unit 54 ) Are also mirror-symmetrically formed.

Meanwhile, the third guide pipe 55 mixes the second polarized wave whose traveling direction has been changed by the first direction switching unit 51 and the third direction switching unit 53 to provide the mixed gas to the second mixing pipe 65, The fourth guide pipe 60 mixes the second polarized wave whose traveling direction has been changed by the second direction switching unit 52 and the fourth direction switching unit 54 and supplies the second polarized wave to the second mixing pipe 65. The third guide pipe (55) and the fourth guide pipe (60) are formed to be symmetrical with respect to the second mixing pipe (65).

The third guide pipe 55 and the fourth guide pipe 60 are arranged such that the widths of both end portions connected to the first to fourth direction switching portions 51, And the width of the central region of the fourth guide pipe 60 is wider than the width of the central region. As a result, steps 57 and 62 are formed at both ends of the third guide tube 55 and at both ends of the fourth guide tube 60 on both sides of the transverse width. It is needless to say that only one step 57 or 62 may be formed along the longitudinal direction of the third guide pipe 55 and the fourth guide pipe 60, or a plurality of steps may be formed.

The third guide pipe (55) and the fourth guide pipe (60) are interconnected by a second intermediate pipe (63) connecting the respective central areas. The second intermediate pipe (63) is formed as a straight tube, and the width of the central region along the longitudinal direction is narrower than the width of both ends. For this, a protruding portion 64 protruding inward by a predetermined width from a side wall connected to the second mixing pipe 65 is formed in a central region of the second intermediate pipe 63.

In the present embodiment, the protrusion 64 is formed only on one side wall of the second mixing pipe 65, but it is also possible to form the protrusion 64 on the wall facing the one side wall. It goes without saying that the number of the protrusions 64 may be plural or the degree of protrusion of the protrusions 64 may be adjusted. By adjusting the number, length, and width of the protrusions 64, the frequency of the second polarized wave mixed in the second mixing tube 64 can be adjusted.

The second mixing pipe 65 extends from the central region of the second intermediate pipe 63 and is firstly bent so as to be parallel to the second intermediate pipe 63, So that it is formed in an 'a' shape. In the first and second bending regions of the second mixing pipe 65, the third and fourth inclined surfaces 66 and 67 are formed obliquely in the outer corner region to change the traveling direction of the second polarized wave. Thus, the second polarized wave from the second relay tube 63 is mixed in the second mixing tube 65, and the direction of travel is changed by the third and fourth inclined surfaces 66, 67 to flow out from the antenna unit . The second polarized wave discharged from the antenna unit is mixed with the second polarized wave discharged from the other antenna unit and is discharged to the outside. The movement of the second polarized wave discharged from the antenna unit will be described later.

A process in which the first polarized wave and the second polarized wave are separated and received in the dual linearly polarized wave horn array antenna 1 according to the above-described configuration will be described.

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 through the first and second protruding jaws 17 and 18. The first polarized wave having the same electric field direction as the longer width of the polarized wave filtering unit 20 is transmitted to the polarization filtering unit 20 And is incident on the first polarization guide 30 through the first polarized wave inflow path 21 of the polarization filtering unit 20. The second polarized wave having the same direction as the short width of the polarization filtering unit 20 moves downward along the polarization filtering unit 20 and is incident on the second polarized waveguide 50.

The first polarized wave among the electromagnetic waves incident through the four horns 10 is incident on both ends of the first and second guide pipes 31 and 32 of the first polarization guide 30. At one end of the first intermediate pipe 40, the first polarized waves inputted from both ends of the first guide pipe 31 are mixed. At the other end of the first intermediate pipe 40, both ends of the second guide pipe 32 The first polarized wave inputted from the first polarized wave is mixed. The first polarized waves inputted to both ends of the first intermediate pipe 40 meet in the central region of the first intermediate pipe 40 and are guided to the first mixing pipe 45. In the first mixing pipe 45, the first polarized waves moved from both ends of the first intermediate tube 40 are mixed, and the first polarized wave whose traveling direction is changed by the first and second inclined surfaces 46, And is discharged to the outside of the mixing pipe 45.

On the other hand, the second polarized wave guided to the second polarized wave guide 50 through the polarized wave filtering section 20 has the same electric field direction as the narrow width of the polarized wave filtering section 20. [ The second polarized waves move to the first to fourth direction switching sections 51, 52, 53 and 54, respectively, and the protruding end 68 formed in the first to fourth direction switching sections 51, 52, 53, And the progress direction is changed. The second polarized waves are reflected by the reflection surfaces 69 of the first to fourth direction switching parts 51, 52, 53, and 54 and are moved to the third or fourth guide pipes 55 and 60, respectively. The second polarized waves from the first direction switching unit 51 and the third direction switching unit 53 are mixed in the central region of the third guide pipe 55 and the second polarized waves from the second direction switching unit 52 and the fourth direction switching The second polarized wave from the portion 54 is mixed in the central region of the fourth guide tube 60. The second polarized waves from the third guide pipe 55 and the fourth guide pipe 60 are input to both ends of the second intermediate pipe 63 and mixed in the central region of the second intermediate pipe 63, 2 mixing tube 65. [0034] The second polarized wave mixed in the second mixing pipe (65) is moved to the outside while the traveling direction is changed by the third and fourth inclined surfaces (66, 67).

A process of transmitting the first polarization and the second polarization in the dual linear polarization horn array antenna 1 will be described below.

The second polarized wave incident on the second mixing pipe 65 of the second polarized wave guide 50 is separated into two portions in the central region of the second relay pipe 63 and is guided to the third and fourth guide pipes 55 and 60 And is guided to the both ends of the third and fourth guide pipes 55 and 60 along the third and fourth guide pipes 55 and 60. The separated second polarized waves are reflected by the reflecting surfaces 69 of the respective direction switching portions 51, 52, 53, and 54 and provided as projecting ends 68, respectively. The propagation direction of the second polarized wave is changed toward the polarization filtering section 20 side by the projecting end 68 and rises through the polarization filtering section 20. [

On the other hand, the first polarized wave 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 polarized wave meets the first and second guide pipes 31 and 32 connected to the both ends of the first intermediate pipe 40, the first and second guide pipes 31 and 32 are separated from each other and connected to both ends of the first and second guide pipes 31 and 32, . The first polarized waves at both end portions of the first and second guide pipes 31 and 32 are changed by the first and second inflow guide surfaces 33 and 34 toward the first polarization inflow path 21, The first polarized wave passes through the first polarized wave inflow path 21 and is supplied to the respective polarization filtering sections 20. The first polarized wave outputted to each of the polarized wave filtering sections 20 is combined with the second polarized wave from the second polarized wave guide 50 and is radiated into the air through the inclined section 15.

In order to fabricate such a dual linearly polarized wave horn array antenna 1, a structure separated by layers will be described in units of antennas as follows.

FIG. 21 is an exploded perspective view of each layer of the dual linear polarization 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.

The dual linear polarized wave 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. The inclined portion 15 is formed on the plane side of the first layer 100 And an inner opening is formed on the back side of the first layer 100. [

FIG. 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 filter 20 connected to an inner opening formed in the first layer 100 and the polarization filtering unit 20 has a region adjacent to each corner of the second layer 100 . A part of the first polarization inversion passage 21 and the interference projection 19 or the interference elimination groove 19a are formed inside the polarization filtering section 20.

The upper part of the first and second guide pipes 31 and 32 of the first polarization guide 30, the first intermediate pipe 40 and the first mixing pipe 45 are formed on the back 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.

A lower region of the first polarization guide 30 is formed on the upper surface of the third layer 200 and only a polarization filtering unit 20 is formed on the lower surface of the third layer 200. That is, on the upper surface of the third layer 200, the first and second guide pipes 31 and 32 of the first polarization guide 30, the first intermediate pipe 40, .

FIG. 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 is formed on the upper surface of the fourth layer 250 and the first to fourth direction switching units 51 and 52 of the second polarization guide 50 are formed on the lower surface of the fourth layer 250, 52, 53 and 54, the third and fourth guide pipes 55 and 60, the second intermediate pipe 63 and the second mixing pipe 65 are formed.

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

A lower region of the second polarization guide 50 is formed on the upper surface of the fifth layer 300. The fifth layer 300 forms a second polarized wave guide 50 together with the fourth layer 250 and includes first to fourth direction switching parts 51, 52, 53 and 54, Pipes (55, 60), a second intermediate pipe (63), and a second mixing pipe (65) are formed. Each protruding end 68 and a reflecting surface 69 are formed in the first to fourth direction switching parts 51, 52, 53, 54 of the fifth layer 300.

37 is a plan view of a second layer, Fig. 38 is a perspective view of a second layer, Fig. 39 is a perspective view of a second layer, and Fig. 35 is a perspective view of a horn array antenna according to an embodiment of the present invention. Fig.

The horn array antenna 1 of this use example has 128 horns in the second layer 150 when the number of the transversal length horns is 8x16 = 128, that is, 4x8 = 32 antenna units. 10 are formed.

Hereinafter, the horn array antennas of this embodiment will be described separately for each layer.

Fig. 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 back surface of the second layer 150 and the plane of the third layer 200 are combined to form 32 first polarized guides 30 .

The first polarized wave incident through the horn 10 is guided through the first polarized waveguide 30 and the first polarized waves emitted from the first polarized waveguide 30 are mixed into one first polarized wave, And is emitted to the outside of the antenna 1. To this end, a first polarized wave inflow and outflow hole 400 is formed between the first polarized wave guide 12 (312) and the first polarized wave guide 13 (313) on the bottom surface of the third layer 200. On the other hand, the first polarized wave incident on the first polarized wave inflow / outflow hole 40 is separated into the first polarized waveguide 30 and then externally through the horn 10.

The first polarized wave guide 301 and the first polarized wave guide 302 are formed in an enamel shape so as to be symmetrical to each other and the first mixing pipe 45 of the first polarized wave guide 301 and the first polarized wave guide 2 302 are connected to each other by a T-shaped first polarized distribution pipe 1 (351). The first polarized wave guide 9 309 and the first polarized wave guide 10 310 are disposed in parallel with the first polarized wave guide 301 and the first polarized wave guide 302, The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 10 310 are communicated by the first polarized distribution pipe 3 353. The first polarized wave distribution pipe 1 (351) and the first polarized wave distribution pipe 3 (353) are communicated by the first polarized distribution pipe 2 (352). Thus, the first polarized wave from the first polarized wave guide 301, the first polarized wave guide 302, the first polarized wave guide 9309 and the first polarized wave guide 310 is transmitted through the first polarized wave distribution pipe 2 (352).

The first polarized wave guide 3 303 and the first polarized wave guide 4 304 are formed in an enamel shape so as to be symmetrical to each other and the first mixing pipe 45 of the first polarized wave guide 303 and the first polarized wave guide 4 304 are connected to each other by the first polarized distribution pipe 5 (355). The first polarized wave guide 11 311 and the first polarized wave guide 12 312 are disposed in parallel with the first polarized wave guide 3 303 and the first polarized wave guide 4 304, The first mixing pipe 45 and the first mixing pipe 45 of the first polarization guide 12 312 are communicated by the first polarized distribution pipe 7 (357). The first polarized wave distribution pipe 5 (355) and the first polarized wave distribution pipe 7 (357) are communicated by the first polarized wave distribution pipe 6 (356). Accordingly, the first polarized wave from the first polarized wave guide 303, the first polarized wave guide 4 304, the first polarized wave guide 11 311, and the first polarized wave guide 12 (312) (356).

The first polarized wave distribution pipe 2 352 and the first polarized wave distribution pipe 6 356 are connected by a first polarized distribution pipe 4 354 and are connected to both sides of a straight pipe of the first polarized distribution pipe 4 354 2, 9 and 10 (301, 302, 309 and 310) are connected to the port 2 and the first polarized waveguides 3, 4 and 5 are connected to the port 3, respectively, 11, 12 (303, 304, 311, 312) are connected. That is, the first polarized wave distribution pipe 4 (354) is a 1: 1 distributor having the same number of the first polarized wave guides 30 connected to the port 2 and the port 3.

The first polarized wave distribution pipe 4 (354) has the first polarized waveguide 1, 2, 9, 10 (301, 302, 309, 310) and the first polarized waveguide 3, 4, 11, 12 , 304, 311, 312 are mixed.

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

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

The first polarized wave distribution pipe 9 (359) and the first polarized wave distribution pipe 13 (363) are connected by a first polarized wave distribution pipe 11 (361) The first polarized waveguide 7, 8, 15, 16 (307, 308, 315, 316) is connected to the port 3, and the first polarized waveguide 5, 6, 13, 14 (305, 306, 313, 314) That is, the first polarized wave distribution pipe 11 (361) has the same number of first polarized wave guides 30 connected to the port 2 and the port 3 as a 1: 1 distributor.

With this configuration, in the first polarized wave distribution pipe 11 (361), the first polarized waveguide 5, 6, 13, 14 (305, 306, 313, 314), the first polarized waveguide 7, 8, 15, 16 , 308, 315, and 316 are mixed.

The first polarized waveguides 17 to 32 to be described later have the same arrangement as the first polarized waveguide 1 to 16 described above, and therefore will be briefly described.

The first polarized waveguide 17 (317) and the first polarized waveguide 18 (318) are connected by a first polarized wave distribution pipe 15 (365), and the first polarized waveguide 25 (325) And is connected by the first polarized wave distribution pipe 17 (367). The first polarized wave distribution pipe 15 (365) and the first polarized wave distribution pipe 17 (367) are communicated with each other by the first polarized wave distribution pipe 16 (366). The first polarized waveguide 19 (319) and the first polarized waveguide 20 (320) are connected by a first polarized wave distribution pipe 19 (369), and the first polarized waveguide 27 (327) and the first polarized waveguide 28 And is connected by the first polarized wave distribution pipe 21 (371). The first polarized wave distribution pipe 19 (369) and the first polarized distribution pipe 21 (371) are communicated with each other by the first polarized distribution pipe 20 (370).

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

The first polarized waveguide 21 (321) and the first polarized waveguide 22 (322) are connected by a first polarized wave distribution pipe 22 (372), and the first polarized waveguide 29 (329) And is connected by the first polarized wave distribution pipe 24 (374). The first polarized wave distribution pipe 22 (372) and the first polarized wave distribution pipe 24 (374) are mutually communicated by the first polarized wave distribution pipe 23 (373). The first polarized wave guide 23 (323) and the first polarized wave guide 24 (324) are connected by a first polarized wave distribution pipe 26 (376), and the first polarized wave guide 31 (331) and the first polarized wave guide 32 And is connected by the first polarized wave distribution pipe 28 (378). The first polarized wave distribution pipe 26 (376) and the first polarized wave distribution pipe 28 (378) are communicated with each other by the first polarized wave distribution pipe 27 (377).

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

Accordingly, the first polarized wave from the first polarized waveguides 17, 18, 25, 26 (317, 318, 325, 326) and the first polarized waveguides 19, 20, 27, 28 (319, 320, 327, 328) And the first polarized waves from the first polarized wave guides 21, 22, 29 and 30 (321, 322, 329 and 330) and the first polarized wave guides 23, 24, 31 and 32 (323, 324, 331 and 332) are mixed in the first polarized wave distribution tube 25 .

The first polarized wave distribution pipe 4 (354) and the first polarized wave distribution pipe 18 (368) are connected to the port 3 and the port 2 of the first polarized wave distribution pipe 29 (379) And the first polarized wave from the first polarized wave distribution pipe 18 (368) are mixed in the first polarized wave distribution pipe 29 (379). The first polarized wave distribution pipe 11 (361) and the first polarized wave distribution pipe 25 (375) are connected to the port 2 and the port 3 of the first polarized distribution pipe 30 (380) And the first polarized wave from the first polarized wave distribution pipe 25 (375) are mixed in the first polarized wave distribution pipe 30 (380). The first polarized wave distribution pipe 29 (379) and the first polarized wave distribution pipe 30 (380) are connected to and communicate with the port 3 and the port 2 of the first polarized wave distribution pipe 31 (381) The first polarized wave inflow / outflow hole 400 is formed in the port 1 of the first polarized wave input / output port 381. Therefore, the first polarized wave distribution pipe 29 (379) and the first polarized wave distribution pipe 30 (380) are mixed and propagated in the first polarized wave distribution pipe 31 (381), and then the first polarized wave inflow / outflow hole 400 ). ≪ / RTI >

The first polarized wave distribution pipe 1 to the first polarized wave distribution pipe 31 (351 to 381) have the same number of the first polarization guide 30 connected to the port 2 and the port 3, respectively. That is, the first polarized wave distribution pipe 1 to the first polarized wave distribution pipe 31 (351 to 381) are 1: 1 distributors. However, the first polarized wave distribution pipes 1 to 31 (351 to 381) may be formed in different shapes according to their positions.

FIG. 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 a second polarized waveguide 50 together with the fifth layer 300 so that the upper surface of the 32 second polarized waveguide 50 on the back surface of the fourth layer 250, Respectively. The fourth layer 250 is formed with a first polarized wave inflow / outflow hole 400 for guiding a first polarized wave that flows into or out of the first polarized waveguide 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 part of the second polarized waveguide 50 is formed on the front surface of the fifth layer 300 and the second polarized waveguide 50 is formed on the back surface of the fifth layer 300 together with the first polarized wave inflow / A second polarized wave inflow / outflow hole 600 for guiding a second polarized wave that flows into or out of the second polarized wave inflow / outflow channel 600 is formed.

The second polarized wave guide 1 501 and the second polarized wave guide 9 509 are formed in an enamel shape so as to be symmetrical to each other and the second mixing pipe 65 of the second polarized wave guide 1 501 and the second polarized wave guide 9 509 are communicated by the second polarized wave distribution pipe 1 (551) having a T shape. The second polarized wave guide 2 502 and the second polarized wave guide 510 are disposed in parallel with the second polarized wave guide 1 501 and the second polarized wave guide 9 509, The second mixing pipe (65) and the second mixing pipe (65) of the second polarized wave guide (510) are communicated by the second polarized wave distribution pipe (3) (553). The second polarized wave distribution pipe 1 (551) and the second polarized wave distribution pipe 3 (553) are communicated by the second polarized wave distribution pipe 2 (552).

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

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

The second polarized wave guide 19 (519) and the second polarized wave guide 27 (527) are formed to be symmetrical to each other and the second mixing pipe (65) of the second polarized wave guide 19 (519) The second mixing pipe 65 is communicated with the second polarized distribution pipe 22 (572). The second polarized waveguide 20 520 and the second polarized waveguide 28 528 are disposed in parallel with the second polarized waveguide 19 519 and the second polarized waveguide 27 527, The second mixing pipe 65 and the second mixing pipe 65 of the second polarization guide 28 528 are communicated by the second polarized wave distribution pipe 244 (574). The second polarized wave distribution pipe 22 (572) and the second polarized wave distribution pipe 24 (574) are communicated by the second polarized wave distribution pipe 23 (573).

The second polarized wave distribution pipe 2 (552) and the second polarized wave distribution pipe 10 (560) are connected by the second polarized wave distribution pipe 13 (563), and the two polarized wave distribution pipes The first and second polarized waveguides 1, 2, and 5 are connected to the port 2, and the port 2 is connected to the second polarized waveguide 17, 18, 25, 9, 10 (501, 502, 509, 510). That is, the second polarized wave distribution pipe 13 (563) has the same number of the second polarized wave guides 50 connected to the port 2 and the port 3 as the 1: 1 distributor.

Similarly, the second polarized wave distribution pipe 5 (555) and the second polarized wave distribution pipe 23 (573) are connected by the second polarized wave distribution pipe 15 (565), and the port 2 of the second polarized wave distribution pipe 15 The second polarized waveguide 19, 20, 27, 28 (519, 520, 527, 528) is connected to the port 3, and the second polarized waveguide 3, 4, 11, 12 In other words, the second polarized wave distribution pipe 15 (565) becomes a 1: 1 distributor having the same number of the second polarized wave guides 50 connected to the port 2 and the port 3.

The second polarized wave guide 5 505 and the second polarized wave guide 13 513 are connected by a second polarized wave distribution pipe 7 557 and the second polarized wave guide 6 506 and the second polarized wave guide 14 514 Is connected by the second polarized wave distribution pipe 9 (559). The second polarized wave distribution pipe 7 (557) and the second polarized wave distribution pipe 9 (559) are communicated with each other by the second polarized wave distribution pipe 8 (558). The second polarized wave guide 7 507 and the second polarized wave guide 15 515 are connected by a second polarized wave distribution pipe 1060 and the second polarized wave guide 8 508 and the second polarized wave guide 16 516 And is connected by the second polarized wave distribution pipe 12 (562). The second polarized wave distribution pipe 10 (560) and the second polarized wave distribution pipe 12 (562) are mutually communicated by the second polarized wave distribution pipe 11 (561).

The second polarized wave guide 21 (521) and the second polarized wave guide 29 (529) are connected by a second polarized wave distribution pipe 25 (575), and the second polarized wave guide 22 (522) And is connected by the second polarized wave distribution pipe 27 (577). The second polarized wave distribution pipe 257 (575) and the second polarized wave distribution pipe 277 (577) are communicated with each other by the second polarized wave distribution pipe 266 (576). The second polarized wave guide 23 (523) and the second polarized wave guide 31 (531) are connected by the second polarized wave distribution pipe 28 (578), and the second polarized wave guide 24 (524) And is connected by the second polarized wave distribution pipe 30 (580). The second polarized wave distribution pipe 28 (578) and the second polarized wave distribution pipe 30 (580) are mutually communicated by the second polarized wave distribution pipe 299 (579).

On the other hand, the second polarized wave distribution pipe 8 (558) and the second polarized wave distribution pipe 26 (576) are connected by the second polarized wave distribution pipe 16 (566) The second polarized waveguide 5, 6, 13, 14 (505, 506, 513, 514) is connected to the port 3, and the second polarized waveguide 21, 22, 29, 30 In other words, the second polarized wave distribution pipe 16 (566) becomes a 1: 1 distributor having the same number of the second polarized wave guides 50 connected to the port 2 and the port 3.

Similarly, the second polarized wave distribution pipe 11 (561) and the second polarized wave distribution pipe 29 (579) are connected by the second polarized wave distribution pipe 18 (568), and the port 2 of the second polarized wave distribution pipe 18 The second polarized wave guides 23, 24, 31 and 32 (523, 524, 531 and 532) are connected to the port 3, respectively. In other words, the second polarized wave distribution pipe 18 (568) becomes a 1: 1 distributor having the same number of the second polarized wave guides 50 connected to the port 2 and the port 3.

On the other hand, the second polarized wave distribution pipe 13 (563) and the second polarized wave distribution pipe 15 (565) are connected to the port 2 and the port 3 of the second polarized wave distribution pipe 14 (564) (566) and the second polarized wave distribution pipe 18 (568) are connected to and communicate with the port 2 and the port 3 of the second polarized wave distribution pipe 17 (567). Port 1 of the second polarized wave distribution pipe 14 (564) extends between the second polarized waveguide 18 (518) and the second polarized waveguide 19 (519) and then extends from the outside of the second polarized waveguide 27 The port 1 of the second polarized wave distribution pipe 177 is extended between the second polarized wave guide 22 522 and the second polarized wave guide 23 523 and then the second polarized wave guide pipe 307 530 toward the second polarization guide 29 (529) side. The second polarized wave distribution pipe 14 (564) and the second polarized wave distribution pipe 177 (567) thus bent are connected to the port 3 and the port 2 of the second polarized wave distribution pipe 31 (581), respectively. In the port 1 of the second polarized wave distribution pipe 311 (581), a second polarized wave inflow and outflow hole 600 is formed for the inflow and outflow of the second polarized wave.

A process of moving the second polarized wave along the second polarized wave guide 50 to the second polarized wave inflow / outflow hole 600 in the dual linear polarized wave horn array antenna according to this embodiment according to this embodiment will be briefly described below.

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

Similarly, the second polarized waves from the second polarized wave guides 5, 6, 13 and 14 (505, 506, 513 and 514) and the second polarized wave guides 21, 22, 29 and 30 (521, 522, 529 and 530) are mixed in the second polarized wave distribution pipe 166 Second polarized waves from the second polarized wave guides 7, 8, 15 and 16 (507, 508, 515 and 516) and the second polarized wave guides 23, 24, 31 and 32 (523, 524, 531 and 532) are mixed in the second polarized wave distribution pipe 186. And the second polarized wave from the second polarized wave distribution pipe 16 (566) and the second polarized wave distribution pipe 18 (568) are mixed in the second polarized wave distribution pipe 177 (567).

On the other hand, the second polarized wave from the second polarized wave distribution pipe 14 (564) and the second polarized wave from the second polarized wave distribution pipe 17 (567) are mixed in the second polarized wave distribution pipe 31 (581) 600).

The second polarized wave distribution pipe 1 to the second polarized wave distribution pipe 31 (551 to 581) have the same number of the second polarized wave guides 50 connected to the port 2 and the port 3, respectively. That is, the second polarized wave distribution pipe 1 to the second polarized wave distribution pipe 31 (551 to 581) are 1: 1 distributors. However, the second polarized wave distribution pipes 1 to 31 (551 to 581) may be formed in different shapes according to their positions.

49 (a) and 49 (b) are plan views showing respective embodiments of the 1: 1 distributor.

The first polarized wave distribution pipes 1 to 31 (351 to 381) and the second polarized wave distribution pipes 1 to 31 (551 to 581) described above can be constructed using a 1: 1 distributor.

One embodiment of the 1: 1 distributor 700 is a linear polarizer having a port 1 and a port 2 connected to the first polarized waveguide 30 or the second polarized waveguide 50, as shown in Figure 49 (a) And a branch pipe 720 branching from a central region of the straight pipe 710 and having a port 3. Here, the straight tube 710 has a plurality of steps 705 so that the width thereof becomes narrower toward the center area, and the step 705 is formed on a wall connected to the branch tube 720 of the straight tube. The number of steps 705 or the interval between steps 705 may be determined according to the frequency of the first or second polarized wave and the step 705 may be determined based on the frequency of the first polarized wave or the second polarized wave on the wall facing the branch tube 720 of the straight tube 710 Of course, be formed. In addition, a distributing projection 707 protruding inward is formed in a wall facing the branch pipe 720 in a central area of the straight pipe 710.

As shown in FIG. 49 (b), the 1: 1 distributor 750 according to another embodiment is formed in a 'T' shape having a straight tube 760 and a branch tube 770, The straight pipe 760 having the port 2 is formed so as to have a wider width toward the central region. To this end, the straight tube 760 is formed with a depression 755, and the depression 755 is formed in a wall facing the branch tube 770. The number or depth of the depressions 755 may be determined according to the frequency of the first or second polarized wave and the depressions 755 may be formed in a wall connected to the branch tube 770 of the straight tube 760 Of course it is. A distribution projection 757 protruding toward the branch pipe is formed in a central region of the depression 755.

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

The first polarized wave distribution pipes 1 to 31 (351 to 381) and the second polarized wave distribution pipes 1 to 31 (551 to 581) described above can be constructed using an m: n distributor.

The m: n distributor 800 according to the first embodiment includes a straight pipe 810 connecting the port 2 and the port 3, and a branch pipe 820 having the port 1, as shown in Fig. 50 (a) And the widths of the ports 1 to 3 are the same. The straight pipe 810 has a plurality of steps 805 formed so as to be narrower from the port 2 and the port 3 toward the central region. At this time, the step 805 formed on the port 2 side is formed so that the length of each step 805 becomes slightly longer toward the central area of the straight tube 810, or the length of each step 805 becomes almost the same. On the other hand, on the side of the port 3, a step having a short length and a long step are mixed. It is needless to say that the step 805 formed in the straight pipe 810 is formed on the wall to which the branch pipe 820 is coupled but may be formed on the wall facing the branch pipe 820. In the central region of the straight pipe 810, an asymmetric protrusion 807 protruding toward the branch pipe 820 is formed in a wall facing the branch pipe 820. The asymmetrical projection 807 is formed in such a manner that the rectangular pillar and the triangular pillar are coupled to each other, and is formed adjacent to the port 2.

The m: n distributor 850 according to the second embodiment includes a straight pipe 860 connecting the port 2 and the port 3, and a branch pipe 870 having the port 1, as shown in Fig. 50 (b) The widths of the ports 2 and 3 are the same, and the width of the port 1 is twice the width of the ports 2 and 3. The straight pipe 860 is formed with a plurality of steps 855 so that the width becomes narrower toward the center area. The port 2 side is formed by mixing a short length and a long step, and a plurality of steps having relatively long lengths are formed on the port 3 side. Each step 855 of the straight pipe 860 is formed in the wall to which the branch pipe 870 is joined but may be formed in the wall facing the branch pipe 870 and the wall facing the branch pipe 870 As in the first embodiment, an asymmetric projection 857 is formed.

The m: n distributor 900 according to the third embodiment includes a straight pipe 910 connecting the port 2 and the port 3, and a branch pipe 920 having the port 1, as shown in Fig. 50 (c) The widths of the ports 2 and 3 are the same, and the width of the port 1 is twice the width of the ports 2 and 3. And a distributing projection 907 protruding toward the branch pipe 920 is formed in the central region of the straight pipe 910.

In the use example of the above-described dual linear polarization horn array antenna 1, the first polarized wave distribution pipes 1 to 31 (351 to 381) and the second polarized wave distribution pipes 1 to 31 (551 to 581) 3 is almost the same as the first polarized wave or the second polarized wave. This is to make the radiation pattern of the first polarized wave or the second polarized wave incline to one side when the antenna needs to be configured to have directionality according to use of the antenna. The illustrated antenna is configured according to an embodiment, The polarized wave distribution pipes 1 to 31 (351 to 381) and the second polarized wave distribution pipes 1 to 31 (551 to 581) are arranged at a ratio of 1: 1 It is possible to configure not only the distributor but also the m: n distributor shown in Figs. 50 (a) to 50 (c).

The first and second protrusions 17 and 18 are formed on the horn 10 so that the efficiency of the antenna 1 can be maintained while maintaining the efficiency of the antenna 1. In this dual linear polarization horn array antenna 1, The height can be reduced. Since the width of the first and second polarization guides 30 and 50 is greater than the height, the size of the antenna can be reduced. In addition, although the size is reduced, the antenna performance of the horn array antenna 1 can be maintained as shown in Table 1. The dual linearly polarized wave horn array antenna 1 is easy to manufacture because the height of each of the first and second polarized waveguides 30 and 50 is uniform.

In the above description, the first and second polarized waves have been described with reference to the electric field, but they can also be applied to the magnetic field. In addition, the above-described embodiment is merely an example for constructing the horn 10, the first polarization guide 30, and the second polarization guide 50 according to the embodiment of the present invention. It is needless to say that at least two of the horn 10, the first polarization guide 30 and the second polarization guide 50 can be manufactured at once in the same manner as the injection molding according to need. 24 to 48 in manufacturing the horn 10, the first polarization guide 30 and the second polarization guide 50 according to the embodiment of the present invention.

On the other hand, in order to increase the reception efficiency of the second polarized wave in the above-described dual linearly polarized wave horn array antenna, the electric field direction of the second polarized wave incident on the short side of the lower portion of the polarization filtering unit 20 It should be parallel. As shown in FIG. 52, if the electric field direction of the incident second polarized wave is not parallel to the shorter side of the lower part of the polarization filtering unit 20 but is turned, the reception efficiency of the second polarized wave in the dual linear polarized wave horn array antenna becomes poor .

However, even if the direction of the electric field of the incident second polarized wave is not parallel to the short side of the lower part of the polarization filtering unit 20 but is twisted, as shown in FIG. 53, if a comb-shaped skew filter is provided on the dual linear polarized- , It is possible to increase the reception efficiency of the second polarized wave.

The comb teeth formed on 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 polarized wave is incident depends on the location (latitude and longitude) of the area where the dual linearly polarized horn array antenna is used. This is because the angle of incidence of the second polarized wave from the latitude and longitude of the area to receive the second polarized wave It can be calculated. Therefore, the angle of inclination of the comb teeth to be formed on the skew filter can be determined through the latitude and the longitude of the area where the second polarized wave is to be received.

The skew filter may be formed of a conductive material such as copper, nickel, or iron, or may be formed by plating a synthetic resin with a conductive material. The thickness of the skew filter is preferably from 0.03 mm to 1 mm, but it can be realized with different thicknesses if necessary.

54 to 61 show a specific method of applying the skew filter to the dual linearly polarized wave horn array antenna described above.

As shown in FIG. 54, the first method is to place a skew filter manufactured in the form of a film on the top of the first layer 100. The second method is a method of directly forming a skew filter on the first layer 100 as shown in FIG.

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

The third method is a method of inserting a skew filter fabricated in the form of a film between the first layer 100 and the second layer 150, as shown in FIG. The fourth method is a method of directly forming a skew filter on the second layer 150 as shown in FIG.

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

delete

A fifth method is a method of inserting a skew filter fabricated in the form of a film between the second layer 150 and the third layer 200, as shown in FIG. The sixth method is a method of directly forming a skew filter on 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 section 20. [ The end portion of the comb teeth formed on the skew filter is in contact with the wall of the polarization filtering section 20.

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

According to the seventh and eighth methods, the skew filter is formed at the lower part of the polarization filtering section 20. [ The end portion of the comb teeth formed on the skew filter is in contact with the wall of the polarization filtering section 20.

On the other hand, since there is no limitation on the number of comb teeth formed on the skew filter, it can be implemented by one or more numbers as needed. There is no limitation on the width and the interval of the comb teeth formed on the skew filter. Further, the end portion of the comb can be rounded to form a curved shape. 62 to 66 show modifications of the skew filter.

On the other hand, the end portion of the comb teeth formed on the skew filter can be prevented from being in contact with the horn 10 or the polarization filtering section 20. In this case as well, the end of the comb can be rounded to form a curved shape. 67 to 69 show the skew filters implemented so that the end portions of the comb teeth do not come into contact with the walls of the polarization filtering unit 20. FIG. Needless to say, the illustrated skew filters may be implemented with one comb or two or more combs.

However, the skew filter in which the end portion of the comb teeth is not in contact with the wall of the polarization filtering unit 20 can be realized only in the form of a film. In this case, in order to fix the position of the comb formed on the skew filter, It is required to be coated with a thin film of a material.

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

In the horn 10 provided in the dual linearly polarized wave horn array antenna shown in the present embodiments, the polarization filtering unit 20 is disposed in the horn 10 (that is, each side of the edge of the polarization filtering unit 20 is a horn, (Parallel to each side of the frame 10). 70, the respective sides of the rim of the polarization filtering unit 20 are aligned with the sides of the rim of the horn 10 and the sides of the horn 10 are not aligned with each other, It is possible to apply the skew filter according to the present invention.

In the above-described embodiments, the case where the dual linear polarization horn array antenna receives the polarized wave has been described as an example, but it is also possible to transmit the polarized wave.

In addition, two skew filters may be used, or a spacer may be inserted between the dual linearly polarized horn array antenna and the skew filter or between the skew filters to provide a uniform spacing.

Spacers can be implemented, for example, with paper, woodlock or thin sponge plates. The spacers are inserted to provide a gap (for example, several millimeters) between the dual linearly polarized horn array antenna and the skew filter or between the skew filters, so that it is not preferable if the spacers are made of a material that interferes with transmission and reception of radio waves. For example, it is not preferable to form the spacer with a material having high conductivity.

The structure of the spacer may be a rectangular shape having a constant height (for example, several millimeters) as shown in FIG. 71 or FIG. Although the width and width of the quadrangle are preferably matched to the skew filter, they do not necessarily correspond to each other, and any structure can be used if a gap is provided between the skew filter and the dual linear polarization horn array antenna.

71, the spacer 441 is a rectangular spacer having a closed center, and has a structure corresponding to a skew filter. The lengths of the horizontal and vertical lengths of the spacer 441 do not necessarily coincide with the lengths of the skew filter. This is because it is sufficient to provide a gap between the skew filter and the dual linearly polarized horn array antenna.

Referring to Fig. 72, the spacer 443 is a rectangular spacer with the center being empty. The spacer 443 may be provided at the center of the spacer 443, though it is empty in the center but it is shaped like a barrel.

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

Although the dual linearly polarized wave horn array antenna to which the skew filter is applied has been exemplified and described above, it is also possible to make and use only the skew filter.

The present invention has been described above with reference to preferred embodiments. It will be understood by those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof. Therefore, the above-described embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

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

2 is a plan view showing an antenna unit of a dual linearly polarized wave horn array antenna according to the present invention,

3 and 4 are a perspective view and a perspective perspective view of the antenna unit of FIG. 2, respectively,

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

Figure 6 is a perspective view of the horn of Figure 5,

Figure 7 is a perspective side view of the horn of Figure 5,

Fig. 8 is a partially cutaway perspective view of the horn of Fig. 5,

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

10 (a) and 10 (b) are a perspective view and a perspective view, respectively, of the polarization filtering section of FIG. 9,

FIG. 11 is a plan view of the polarization filtering unit of FIG. 10,

12 (a) to 12 (c) are side views of a polarization filtering section having radiation projections 22 of different shapes,

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 each showing an example in which the interference protrusions of the polarization filtering section are formed into a quadrangle, a triangle,

Figs. 14 (d) to 14 (f) are plan views of horns in which the interference elimination grooves of the polarization filtering section are formed in a quadrangular, triangular,

Figure 15 is a simplified side cross-sectional view of a horn according to one embodiment of the present invention,

Figure 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 Figure 15;

Figure 17 is a simplified side cross-sectional view of a horn having the same performance as the horn of Figure 15,

18 (a) and 18 (b) are a perspective view and a perspective view, respectively, of a first polarization guide and a second polarization guide of FIG. 2,

19 (a) is a plan view of the first polarization guide in a state where the polarization filtering section is coupled,

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

Fig. 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)

Fig. 20 (c) is a perspective view of the second polarized waveguide of Fig. 20 (b)

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

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

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

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

25 is a perspective view of the 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 the third layer,

29 is a rear view of the third layer,

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

34 is a perspective view of the fifth layer,

35 is a perspective view of a use example of a horn array antenna according to the present invention,

36 is a perspective view of the first layer,

37 is a plan view of the second layer,

38 is a perspective view of the second layer,

39 is a rear view of the second layer,

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

41 is a perspective view of the third layer,

42 is a rear view of the third layer,

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

44 is a perspective view of the fourth layer,

45 is a rear view of the fourth layer,

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

47 is a perspective view of the fifth layer,

48 is a rear view of the fifth layer,

49 (a) and 49 (b) are a plan view showing an embodiment in which the first and second polarized wave distribution pipes are constituted by a 1: 1 distributor,

50 (a) to 50 (c) are plan views showing an embodiment in which the first and second polarized wave distribution pipes are constituted by an m: n distributor,

51 to 53 are diagrams provided in a conceptual description of a skew filter,

Figures 54 to 61 illustrate a specific method of applying a skew filter to a dual linearly polarized wave horn array antenna,

62 to 66 are views showing modifications of the skew filter,

67 to 69 illustrate skew filters implemented such that the tip of the comb does not come into contact with the rim of the inner opening,

70 is a view showing an example in which a skew filter is applied when the horn and the polarization filtering unit are not aligned,

71 and 72 are views showing examples of spacers.

Claims (7)

A dual linear polarization horn array antenna for receiving first and second polarized waves, A plurality of horns in which the first polarized wave and the second polarized wave are incident together; A plurality of polarization filtering units for separating the first polarized wave and the second polarized wave incident on the horns, respectively; A first polarization guide for guiding a first polarized wave separated from the polarization filtering units; A second polarization guide for guiding a second polarized wave separated from the polarization filtering units; And A skew filter, The upper part of the polarization filtering section is in the shape of a rectangular tube, A stepped portion protruding toward the inner space is formed in a lower portion of the first wall of the four walls formed in the polarization filtering portion, and a lower portion of the polarization filtering portion is a rectangular tube shape narrower than a width of an upper portion of the polarization filtering portion, A protruded portion is formed on an upper portion of the step, A first polarized wave inflow path for providing the first polarized wave to the first polarized waveguide is formed in a second wall facing the first wall, On the back surface of the dual linear polarization horn array antenna, A first polarized wave inflow hole in which a first polarized wave mixed while being guided by the first polarized waveguide is emitted to the outside of the dual linearly polarized horn array antenna and a second polarized wave inflow hole guided by the second polarized waveguide, A second polarized wave inflow and outflow hole is formed to be emitted to the outside of the linearly polarized horn array antenna, The first polarized waveguide includes: A first guide pipe for receiving first polarized waves separated from the first and second polarized wave filtering units through both ends; And a second guide pipe for receiving the first polarized wave separated from the third and fourth polarized wave filtering units of the polarized wave filtering units through both ends, Wherein the second polarization guide includes a first direction switching unit for changing the traveling direction of the second polarized wave separated by the first polarized filtering unit, a second direction switching unit for changing the traveling direction of the second polarized wave separated by the second polarized filtering unit A third direction switching unit for changing the traveling direction of the second polarized wave separated by the third polarized filtering unit, a second direction switching unit for changing the traveling direction of the second polarized wave separated by the fourth polarized filtering unit A third guide pipe connecting the first direction switching unit and the third direction switching unit, a fourth guide pipe connecting the second direction switching unit and the fourth direction switching unit, A second mixing tube for connecting the guide tube and the fourth guide tube, and a second mixing tube for mixing the second polarized wave from the third guide tube and the fourth guide tube, Wherein the skew filter is attached to an upper portion of the horns, or a lower portion of the horns, a center portion of the polarization filtering portion, and a lower portion of the polarization filtering portion. The method according to claim 1, Wherein when the skew filter is formed on the upper portion of the horns, the skew filter is a comb-like shape abutting the rim of the opening formed on the upper portion of the horns. The method according to claim 1, Wherein when the skew filter is formed on the lower portion of the horns, the skew filter is a comb-like shape abutting the rim of the opening formed in the lower portion of the horns. The method according to claim 1, When the skew filter is formed on the lower portion of the horns, the skew filter has a comb-like shape abutting the rim of the opening formed in the lower portion of the horns, Wherein the skew filter is a comb-like shape abutting on the polarization filtering unit when the skew filter is formed in either the center of the polarization filtering unit or the bottom of the polarization filtering unit. delete delete delete

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