KR20130060982A - Triple band dual polarization dipole antenna including balun based on printed circuit board - Google Patents

Abstract

PURPOSE: A tri-bandwidth dual polarization dipole antenna system and an array are provided to improve a signal quality by arranging multiple antenna systems on a reflector. CONSTITUTION: A tri-bandwidth dual polarization dipole antenna system and an array comprise the following steps: a first antenna(100) arranges a dual polarization dipole antenna unit to one place between a front side and a rear surface; a second antenna(200) arranges the first antenna to a center; cables are connected to a central point of multiple radiation element modules; a feeding unit forms a pattern; and a reflector(50) arranges the feeding unit, the first antenna, and the second antenna.

Description

Triple band dual polarization dipole antenna including balun based on printed circuit board

The present invention relates to an antenna, which is a radio wave transmitting and receiving device used in a base station and a mobile communication repeater, and more particularly, a phase in which a dipole antenna provided at a specific antenna among antennas supporting multiple bands is partially disposed in front and rear surfaces, respectively, and inverted. A triple band dual polarized dipole antenna system and an array capable of signal processing having an antenna are provided.

With the popularity of personal mobile phones and the recent increase in the spread of smartphones and tablet PCs, the use of radio waves for calls and wireless Internet is increasing rapidly. Such a surge in usage is increasing the demand of customers to use the telephone and the Internet anytime, anywhere, and the demands of customers for communication speed and call quality. In particular, in addition to indoors such as buildings, outdoor areas, suitable call quality is required even in shadowed areas where distances from existing base stations and mobile communication repeaters are not well communicated by terrain. In order to meet the needs of these customers, each communication company has installed additional base stations and mobile communication repeaters in the shaded areas.

On the other hand, an antenna is a main component of the base station and the mobile communication repeater. The antenna is a key device for transmitting and receiving radio waves, and as mentioned above, a light and small size are required for proper application in a variety of limited installation environments. In order to provide such a light and simple antenna, proper design of the shape, function, propagation direction, circuit, and structure of the radiating element constituting the antenna is required.

Commonly used antennas are dipole antennas. The radiating element is made so that the total length of the conductors of two different poles is λ / 2, and radiates radio waves in all directions. At this time, a balun (balance to unbalace transformer) in the feeding process of the radiating element plays a role of impedance matching to match the signals supplied through the two conductor wires, grounds one of the conductor wires, and provides signal information to the remaining metal wires. It is responsible for forming the unbalaced signals that form. On the other hand, in the feeding process, the general circuit configuration is because the interference of the electrical signal occurs to generate a mutual intermodulation distortion signal (PIMD), the electrical signal is disturbed, so that the intermodulation distortion signal is eliminated It is necessary to improve the electrical properties.

Meanwhile, the conventional antenna system adopts a structure in which a plurality of antennas are arranged to overlap each other or have a predetermined interval for multi-band support. However, such a conventional antenna system has a problem that the size of the antenna system is increased to maintain a constant interval. In addition, there is a problem in that signal characteristics are deteriorated when the antennas are overlapped to solve the increase in size.

SUMMARY OF THE INVENTION The present invention has been proposed to improve the above conventional problems, and an object of the present invention is to provide a triple band dual polarized dipole antenna system and array having more improved signal characteristics while minimizing the size of the antenna system.

In order to achieve the above object, the present invention provides a first antenna in which a dual polarized dipole antenna unit is disposed at at least one of the front and rear surfaces of a plate shape, and an annular substrate having an empty center so that the first antenna can be disposed at the center. A second antenna having a plurality of radiating element modules disposed at at least one of a front side and a rear side of the plurality of radiating element modules; Disclosed is a configuration of a triple band dual polarization dipole antenna system including a formed feeder, a feeder, a first antenna, and a reflector on which a second antenna is disposed.

Here, the first antenna includes at least one of a first printed circuit board, a first dual polarized dipole antenna unit formed on one surface of the printed circuit board, and a second dual polarized dipole antenna unit formed on the other surface, wherein the first or second antenna 2 The dual polarized dipole antenna unit forms a tapered matching circuit in which the widths of both ends of the U-shape gradually decrease, and a balun is formed, and the first dipole and copper foil printed on one surface of the printed circuit board have the same shape as the first dipole. A second dipole printed on copper foil at a position rotated 90 degrees about an axis of the printed circuit board with respect to the longitudinal direction of the dipole, and formed on one surface of the printed circuit board, wherein the first dipole and the second dipole overlap each other. A ground portion formed in the portion, an eleventh feed line formed on one surface of the printed circuit board, and a copper foil line connecting the ends of the first dipole, and the second A copper foil line connecting the ends of the e-pole, the second feed line of which both ends are formed in proximity to the eleventh feed line, and at least one via hole is formed at each of the two ends, the feed signal to the eleventh feed line and the second feed line It may include a core wire hole formed to penetrate both sides of the printed circuit board to insert a cable for transmission, and an air bridge for electrically connecting both ends of the second feed line.

The feeder may include a second printed circuit board, cable connection parts formed at a corner of the second printed circuit board, to which the cables are connected, and feed lines connecting the cable connection parts in pairs.

The radiating element modules may include a first radiating element module, a third radiating element module, and a second radiating element module that are connected to cables connected to cable connection parts disposed in a first diagonal direction, and are connected to each other by a first feed line to form a first dipole antenna. It may include a second radiating element module and a fourth radiating element module which are connected to the cable connection portions arranged in a diagonal direction and interconnected by a second feed line to form a second dipole antenna.

The feeder may further include a cross feeder disposed at an area where the twenty-first feed line and the twenty-second feed line cross each other to electrically separate the twenty-first feed line and the twenty-second feed line. The cross feed device includes an insulating layer disposed below a first feed line, a connection pattern disposed under the insulating layer, and formed on the insulating layer to expose the connection pattern so that one end portion and the other end portion of the second feed line are exposed. It may include a draw hole formed to be connected.

The antenna system includes at least one first support for fixing the first antenna spaced apart from the surface of the reflector by a predetermined height, and at least one second support for securing the second antenna spaced apart from the surface of the reflector by a certain height. It may include, wherein the second support may be formed higher or lower than the height of the first support.

The present invention also comprises at least one antenna system consisting of only a first antenna having a dual polarized dipole antenna portion disposed in at least one of the front and rear of the plate-like shape, the center is formed partly connected to the front and rear of the empty annular substrate At least one antenna system comprising a second antenna including a plurality of radiating element modules, a cable for cross-connecting the radiating element modules, and a feeding part for supporting cable connection and feeding, the first antenna and the second antenna And a configuration of a triple band dual polarized dipole antenna array comprising at least one antenna system comprising a cable and a feeder.

The present invention also provides a cable and cable for cross-connecting a second antenna and a plurality of radiating element modules arranged in a first direction, the plurality of radiating element modules being formed partly in series on the front and rear surfaces of an annular substrate having an empty center. At least one first type antenna system comprising a feeding part for supporting connection and feeding, and a first antenna and a first antenna having a dual polarized dipole antenna part disposed in a first direction at at least one of a front surface and a rear surface of a plate shape. At least one second type antenna system having a center and having the second antenna and the cable and the feeder arranged in the first direction, wherein the radiating element modules are disposed in at least one of a plate-shaped front and rear dual polarized dipoles. At least one third type antenna system having an antenna unit and having only a first antenna arranged in a first direction, At least one fourth type antenna system comprising a first antenna, a second antenna, a cable, and a feeder disposed in a second direction inverted by 180 degrees with the first direction, a second antenna disposed in the second direction, Disclosed is a configuration of a triple band dual polarized dipole antenna array comprising at least one fifth type antenna system comprised of a cable and feeders.

Here, at least one of the first and second type antenna systems may be disposed symmetrically on both sides of the fourth type antenna system.

In addition, a plurality of the fourth type antenna system may be installed at the reflector plate, and at least one of the first and second type antenna systems may be disposed at both sides of the plurality of the fourth type antenna system.

In addition, the mid-band dual polarization dipole antenna array according to the present invention is installed on the reflecting plate, at least one fifth type antenna system comprising a second antenna, a cable and a feeder disposed in the second direction, and on the reflecting plate It may further include at least one of at least one sixth type antenna system having a dual polarization dipole antenna portion disposed at at least one of the front and rear surfaces of the plate shape and configured only with the first antenna disposed in the second direction.

In addition, the mid-band dual polarization dipole antenna array according to the present invention may further include an isolation plate installed on the reflecting plate on the outside of the portion where the first or second antenna is installed. The isolation plate may have at least one of a c-shape, a “-shape” shape, a straight shape, and a “-shape” at an upper portion of a T-shape, a-shape, a V-shape, and a “shape” shape.

As described above, the present invention provides a triple-band dual polarization die antenna system and an array in which a first dual polarization dipole antenna supporting a first frequency band is provided in a hollow form and supports a second frequency band. A dual polarized dipole antenna is disposed in the center of the first dual polarized dipole antenna, thereby minimizing the size of the antenna system and the array while minimizing signal interference to provide better signal characteristics.

In addition, the present invention can provide better robustness by printing the first dual polarized dipole antenna in succession on one substrate.

In addition, the present invention supports the first dual polarization dipole antenna and the second dual polarization dipole antenna to be properly disposed on the reflector to have better signal characteristics for the frequency band.

In addition, the present invention is configured by including a plurality of antenna systems on the reflector to configure a triple-band dual polarized dipole antenna array, at least one of the plurality of antenna systems including the other antenna system and the antenna system inverted phase 180 degrees In addition, the CPR characteristics can be improved, and the horizontal beam width can be made uniform.

In addition, the present invention can improve the signal characteristics of the triple-band dual polarized dipole antenna array by placing a plurality of antenna systems on the reflector by installing the isolation plate on the reflector outside the portion where the first or second antenna is installed. .

1 is a plan view of a triple band dual polarized dipole antenna system according to an embodiment of the present invention.
2 is an exploded view of a triple band dual polarized dipole antenna system according to an embodiment of the present invention.
3 is a perspective view of a triple band dual polarized dipole antenna system according to an embodiment of the present invention;
Figure 4a is a more detailed view of the first antenna of the present invention.
4B is a cross-sectional view of the air bridge of FIG. 4A.
4C is an enlarged view of a portion where the first feeder line and the second feeder line in FIG. 4A intersect.
5 is a view for explaining the antenna pattern formation of the first antenna of the present invention.
6A is a front view for explaining a second antenna and a power feeding unit of the present invention.
FIG. 6B illustrates the cross feeder of FIG. 6A in more detail. FIG.
FIG. 6C is a cross-sectional view taken along the QQ ′ cutting line of FIG. 6B; FIG.
Figure 7 is a view showing the side of the second antenna and the feeder of the present invention.
8 is a view showing in more detail the support of the present invention.
9 is a front view for explaining a triple band dual polarized dipole antenna array of the present invention.
10 is a perspective view for explaining a triple band dual polarized dipole antenna array of the present invention.
11A and 11B are graphs showing antenna patterns of a triple band dual polarized dipole antenna array without phase inversion.
12A and 12B are graphs showing antenna patterns of a triple band dual polarized dipole antenna array using phase inversion of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

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

1 is a diagram schematically illustrating a configuration of a triple band dual polarization dipole antenna system 103 according to an exemplary embodiment of the present invention. In particular, the figure shown in FIG. 1 schematically shows the front view of the triple band dual polarization dipole antenna system 103 of the present invention. FIG. 2 also shows an exploded view of the triple band dual polarized dipole antenna system 103 shown in FIG. 3 shows a perspective view of a triple band dual polarized dipole antenna system 103 of the present invention.

1 to 3, the triple band dual polarization dipole antenna system 103 of the present invention provides a reflector 50, a first antenna 100 for supporting a first frequency band, and a second frequency band support. And a second antenna 200, a feed unit 300 for feeding the second antenna 200, a first support 160, and a second support 260, and further include an isolation plate 60. Can be. Although not shown here, a feeding circuit for feeding the first antenna 100 may be provided on the rear or front surface of the reflector 50, and the feeding circuit is connected to the first antenna 100 to correspond to the first frequency band. It can support the transmission and reception of the signal. The height of the first support 160 may be formed lower than the height of the second support 260, the height of the second support 260 is formed lower than the height of the first support 160 in accordance with the intention of the designer. Can also be.

In the triple band dual polarization dipole antenna system 103 of the present invention having such a configuration, a second annular antenna 200 having an empty center is disposed on the reflector plate 50, and the first antenna inside the second antenna 200. The antenna 100 may be disposed. Alternatively, the first antenna 100 may be disposed on the reflector plate 50, and the second antenna 200 may be disposed above the first antenna 100 so that the first antenna 100 is disposed at the center.

In this case, the second antenna 200 may be disposed at a relatively high position from the reflecting plate 50 as compared to the first antenna 100 to support transmission and reception of a signal in a stable second frequency band, and the first antenna 100 may also support the second antenna. Signal transmission and reception of the first frequency band may be supported through an empty center of the antenna 200. In this case, the second antenna 200 and the first antenna 100 are determined to be different from each other from the reflecting plate 50. In this case, the distance from the reflecting plate 50 is determined by the first antenna 100 and the second antenna ( It may vary depending on the sizes of the first frequency band and the second frequency band supported by 200). Meanwhile, at least one of the annular second antenna 200 and the first antenna 100 may be printed with an antenna pattern that supports transmission and reception of signals having reverse phases on the front and rear surfaces of the substrate. In addition, the annular second antenna 200 connects the radiating element module through a cable to support the shape of the dual polarized dipole antenna that crosses the X letter. At this time, the cable is fixed and the antennas of the polarization characteristics are connected. The feed part 300 may be disposed on the reflector plate 50 corresponding to the center area of the second antenna 200. The feeder 300 may be disposed under the first antenna 100, and may be cross-connected with the second antenna 200 through the cable 250 to provide a dual polarization characteristic.

45 편파 특성을 가지도록 배치될 수 있다. 한편 제1 안테나(100)는 교차된 복수의 다이폴 안테나들이 전면뿐만 아니라 후면에도 인쇄되어 마련된다. 이때 후면에 형성되는 복수의 다이폴 안테나들은 인쇄회로기판의 일정 방향의 중심축을 기준으로 대칭되는 형태로 인쇄될 수 있다. 제1 안테나(100)의 세부 구조에 대해서는 도 4 및 도 5를 참조하여 보다 상세히 설명하기로 한다.The first antenna 100 is formed by printing an antenna pattern supporting dual polarization characteristics on the front and rear surfaces of a printed circuit board having a predetermined shape. In particular, the first antenna 100 may be configured such that polarization characteristic dipole antennas having a “C” shape intersect each other with an X shape but are electrically spaced apart from each other at an intersection portion. At this time, as the plurality of dipole antennas are arranged in a form rotated 90 degrees to each other

Can be arranged to have 45 polarization characteristics. Meanwhile, the first antenna 100 is provided with a plurality of crossed dipole antennas printed on the rear surface as well as the front surface. In this case, the plurality of dipole antennas formed on the rear surface may be printed in a symmetrical form with respect to a central axis in a predetermined direction of the printed circuit board. The detailed structure of the first antenna 100 will be described in more detail with reference to FIGS. 4 and 5.

The second antenna 200 is formed by printing an antenna pattern so that the radiating element modules formed by connecting some patterns on the front and rear surfaces of the annular dielectric substrate are arranged. The second antenna 200 is configured to be symmetrical with respect to the center point of the radiating element modules formed on the dielectric substrate, one side is provided on the front side and the other side is provided on the rear side. As a result, the second antenna 200 performs signal radiation 180 degrees out of phase by radiating element modules partially disposed on the front and rear surfaces. The second antenna 200 has an annular shape and is spaced apart from the reflecting plate 50 by a predetermined interval. In this case, the first antenna 100 and the power feeding unit 300 may be disposed in the center.

On the other hand, the second antenna 200 provides a structure in which the radiating element modules positioned in the diagonal direction are connected through the cable 250 and the power feeding unit 300. As a result, the second antenna 200 has a radiation element shape and a 45 polarization characteristic of the letter 'c' with respect to the radiation element modules symmetrically arranged in the diagonal direction and the feed lines formed in the cable 250 and the feed part 300. . The cable 250 may be provided in a form in which the balun is removed. In order to improve signal characteristics, a choke support may be further attached to one side of the cable 250. Detailed structures of the second antenna 200 and the power feeding unit 300 will be described in detail with reference to FIGS. 6 and 7.

Reflector 50 of the present invention supports the first antenna 100, the second antenna 200, the power supply unit 300 is a support function for seating and fixed, as well as the first antenna 100 and the second antenna 200 Signal reflection characteristics. The reflective plate 50 may be surface treated to improve the reflection function. Meanwhile, a first reflecting plate hole 163 and a second reflecting plate hole 263 to which the first support 160 and the second support 260 may be fastened may be formed at one side of the reflecting plate 50. Here, the first reflecting plate hole 163 is a hole into which one side of the first support 160 which fixes the first antenna 100 spaced apart from the reflecting plate 50 at a predetermined interval is inserted. The first reflecting plate hole 163 corresponds to the number of the first support 160 to be fastened to the first antenna 100, for example, the intention of the designer, such as two, three, four ... It can be provided in various ways. Similarly, the second reflector plate 263 may be provided in various ways such as two, three, four, etc. in a number corresponding to the number of the second support 260 fastened to the second antenna 200. have. Here, the number of the first support 160, the first reflector plate 163, the second support 260, and the second reflector hole 263 may be similarly provided, but may be provided in different numbers. .

The first support 160 supports the first antenna 100 so as to be spaced apart from the surface of the reflector 50 by a first distance, and also suppresses the flow of the first antenna 100 so that the first antenna 100 is reflected by the reflector ( 50) to be firmly supported. The second support 260 supports the second antenna 200 so as to be spaced apart from the surface of the reflector 50 by a second interval and suppresses the flow of the second antenna 200. Here, the second interval is formed relatively larger than the first interval, and as described above, the first interval and the second interval may vary according to frequency bands supported by the respective antennas. The first antenna 100 and the second antenna 200 may be provided such that substrate holes through which the first support 160 and the second support 260 can be inserted, respectively, penetrate the front and rear surfaces of the substrate. The first support 160 and the second support 260 are provided in a similar shape, but may be formed to have a different height or thickness. The shapes of the first support 160 and the second support 260 will be described in more detail with reference to FIG. 8.

In addition, the isolation plate 60 is installed on the reflection plate 50 on the outer side of the portion where the first or second antennas 100 and 200 are installed. The isolation plate 60 improves the separation of the first and second antennas 100, 200. At this time, the isolation plate 60 is installed on the reflecting plate 50 by bending the metal plate, for example, in the form of "C", "∩", straight, "∩" T-shaped, a-type, V-shaped, "∧" "It may be formed to have a shape, but is not limited to this.

4A is a view illustrating in detail the shape of the first antenna 100 according to an exemplary embodiment of the present invention. FIG. 4B is a cross-sectional view illustrating the air bridge of FIG. 4A, and FIG. 4C is a cross-sectional view of the first feeder line and the first feeder of FIG. 4A. This is an enlarged view of the intersection of class 2 power lines. 5 is a view for explaining the front and back pattern of the first antenna 100 of the present invention.

4A to 5, the first antenna 100 according to the present invention includes a first dual polarized dipole antenna unit 80 or a second dual polarized dipole antenna formed on one surface of the first printed circuit board 10. A portion 90 is included.

The first dual polarized dipole antenna unit 80 includes a first dipole 11, a second dipole 12, a ground unit 15, an eleventh feed line 20, a twelfth feed line 21, and a core wire hole 30. And an air bridge 40. The first dipole 11 forms a tapered matching circuit which gradually decreases in width at both ends of the letter C to form a radiating element 22, and is formed by copper foil printing on one surface of the first printed circuit board 10. The second dipole 12 has the same shape as that of the first dipole 11 and is located at a position in which the second dipole 12 is rotated 90 degrees about an axis of the first printed circuit board 10 with respect to the longitudinal direction of the first dipole 11. Printed and formed. The ground portion 15 is formed of a rectangular copper foil at a central portion where the first dipole 11 and the second dipole 12 overlap. The eleventh feed line 20 is formed of a copper foil line connecting the ends of the first dipole 11. The twelfth feed line 21 is formed of a copper foil line connecting the ends of the second dipole 12. The core wire 30 is formed to penetrate the upper and lower surfaces of the first printed circuit board 10 to insert a coaxial cable for transmitting a feed signal to the eleventh feed line 20 and the twelfth feed line 21. . The air bridge 40 is installed so that the feed lines are not electrically connected when the eleventh feed line 11 and the second feed line 12 cross each other.

The first printed circuit board 10 uses a single-layer dielectric substrate, and the first dipole 11 and the second dipole 12 which are components of the first double polarized dipole antenna unit 80 by copper foil printing on the upper and lower surfaces thereof. The eleventh feed line 20, the twelfth feed line 21, the core wire hole 30, the ground portion 15, and the air bridge 40 are formed. In addition, a first support 160 for fixing the first printed circuit board 10 to the reflective plate 50 is provided, and the first printed circuit board 10 can insert the first support 60. At least one substrate hole 70 is formed. The first printed circuit board 10 may be formed in a polygonal shape such as an ellipse, a circle, a triangle, or a rectangle.

The second dipole 12 has the same shape as the first dipole 11 and is rotated by 90 degrees about an axis of the first printed circuit board 10 with respect to the longitudinal direction of the first dipole 11. Copper foil is printed on. Accordingly, the first dipole 11 and the second dipole 12 may be disposed on the first printed circuit board 10 in an X-shaped cross shape. In addition, a stepped radiating element 22 is formed at the end of the balloon 23 to transmit and receive a wide frequency band.

As described above, the first antenna 100 of the present invention is provided with a stepped radiating element 22 on the first printed circuit board 10 and is manufactured in a form in which a balun is built, so that the volume required for antenna design is reduced and improved. Can provide directivity and electrical properties of radio waves.

Meanwhile, in the first antenna 100 of the present invention, dual polarized dipole antenna portions may be disposed on front and rear surfaces of the first printed circuit board 10, respectively. For example, a first dual polarized dipole antenna unit 80 may be disposed on a front surface of the first printed circuit board 10, and a second dual polarized dipole antenna unit 90 may be disposed on a rear surface of the first printed circuit board 10. ) May be arranged. In this case, the second dual polarization dipole antenna unit 90 is the same as the first dual polarization dipole antenna unit 80, but the first dual polarization dipole antenna unit 80 of the first printed circuit board 10 is printed. It may be formed in a shape that does not share the radial surface on the opposite side.

The ground part 15 may be formed on one surface of the first printed circuit board 10 and may be formed at a portion where the first dipole 11 and the second dipole 12 overlap. The plurality of via holes 16 formed in the ground portion 15 are formed as holes penetrating both sides of the first printed circuit board 10 and are electrically connected to the opposite surfaces. The plurality of via holes 16 improves the grounding ability.

The eleventh feed line 20 is a copper foil line connecting the ends of the first dipole 11 to be printed on one surface of the first printed circuit board 10. The twelfth feed line 21 is composed of a copper foil line connecting the ends of the second dipole 12, both ends of the twelfth feed line 20 are formed adjacent to each other, at least on each end of the twelfth feed line 21 One via hole is formed. Since the first dipole 11 and the second dipole 12 form 90 degrees in an X shape on one surface of the first printed circuit board 10, the first dipole 11 and the second dipole 12 on the same surface. The eleventh feed line 20 and the twelfth feed line 21 formed at one end of the cross are perpendicular to each other.

The core wire 30 penetrates the upper and lower surfaces of the first printed circuit board 10 to insert a coaxial cable for transmitting a feed signal to the eleventh feed line 20 and the twelfth feed line 21. It is formed on one surface of the printed circuit board 10.

The air bridge 40 electrically connects both ends of the twelfth feed line 21. To this end, an air bridge 40 using a pattern is installed in the wire bridge 40 or the insulator substrate. Since the electrical signals of the eleventh feed line 20 and the twelfth feed line 21 do not interfere with each other due to the application of the structure of the air bridge 40, the intermodulation distortion signal and the degree of separation of radio waves are improved. In addition, when the eleventh feed line 20 and the twelfth feed line 21, which are connected to the first dipole 11 and the second dipole 12, respectively, have an air bridge 40 structure, the phase and power ratios are improved, and the beam width is improved. The pattern characteristics of the electric signal such as tracking and the like are improved. In addition, the air bridge 40 formed by attaching the insulator substrate may support a more concise manufacturing process.

6A is a front view illustrating in detail the shapes of the second antenna 200 and the power feeding unit 300 according to an embodiment of the present invention. FIG. 6B illustrates the cross feeder 330 of FIG. 6A in more detail. 6C is a cross-sectional view taken along the line Q-Q ′ of FIG. 6B. 7 is a side view of the second antenna 200 and the power feeding unit 300.

6 and 7, the second antenna 200 in which the radiating element modules of the present invention are disposed in an annular shape is fixed at regular intervals based on the at least one second support 260 on the reflector plate 50. Is placed. In this case, the power supply unit 300 is placed on the reflector plate 50, and the cable 250 is electrically connected between the power supply unit 300 and the second antenna 200. Accordingly, the radiating element modules of the second antenna 200 of the present invention may provide a structure that can be fed to the cable 250 from which the balun is removed. Meanwhile, the feed part 300 may be placed below the reflector plate 50.

The reflector 50 has an area larger than the total area of the second antenna 200 and is disposed at a distance spaced apart by the length of the second antenna 200 and the second support 260. The reflector 50 is formed of a metallic material and may be appropriately surface-treated for radio wave reflection. The feeder 300 may be disposed at a predetermined position of the reflector plate 50. In particular, the power supply unit 300 disposed on the reflector plate 50 may be disposed at an empty center of the annular second antenna 200. In addition, a signal line for transmitting a signal to be transmitted / received through the second antenna 200 and a signal supply unit connected to the signal line, such as a distributor, may be further disposed on the surface or the rear surface of the reflector 50 according to the designer's design intention. Can be.

The cable 250 may include a first connection part connected to one side of the power feeding part 300, a second connection part connected to the annular second antenna 200, a conductive wire and a conductive wire having a predetermined length connecting the first connection part and the second connection part. It includes an insulation surrounding the. The cable 250 may have a number corresponding to the number of radiating element modules of the second antenna 200. That is, when the second antenna 200 includes four radiating element modules, four cables 250 may be provided to support each radiating element module to be connected to one side of the power feeding part 300. In this case, the cable 250 is connected to the central contact of the specific radiating element module and supports impedance matching of the corresponding radiating element module. Accordingly, the second antenna 200 of the present invention may be provided in a form in which a separate balun structure related to the cable 250 is removed.

The second antenna 200 provides a structure in which a plurality of radiating element modules are disposed on an annular dielectric substrate having an empty center. Accordingly, the second antenna 200 of the present invention can support the arrangement of antennas having different frequency bands in the center. In addition, the second antenna 200 of the present invention emits a signal having a 180-degree difference in phase by radiating element modules, which are divided into two sides, partially disposed on the front and rear surfaces of the substrate. As a result, the second antenna 200 of the present invention provides better signal symmetry and also minimizes the generation of the PIMD (Passive InterModulation Distortion) by replacing the portion where the dipole and the barun are combined with the cable structure. Support.

The second antenna 200 of the present invention described above includes a dielectric substrate 201 and four radiating element modules 210, 220, 230, and 240 formed on front and rear surfaces of the dielectric substrate 201.

The dielectric substrate 201 is configured to provide a plurality of surfaces on which the four radiating element modules 210, 220, 230, and 240 are mounted. The dielectric substrate 201 may have a hollow center, a plate shape, and may be made of a non-conductive material. Based on the illustrated figure, the dielectric substrate 201 may have an octagonal ring shape. Accordingly, each of the radiating element modules may be provided in a "-" shape of the shape bent in the corner region of the octagonal ring and bent toward the center at the center of the side region. However, the dielectric substrate 201 of the present invention is not limited to the above-mentioned octagonal ring shape, and is formed in at least one of various shapes having an empty annular center, and is based on a center point or a center axis to improve signal characteristics during signal emission. It may be provided in a symmetrical structure. For example, the dielectric substrate 201 may have four or more octagonal cabinets in which the four radiating element modules 210, 220, 230, and 240 included in the second antenna 200 may be arranged symmetrically, but have symmetry. It has a polygonal or circular shape, but the center may be provided in an empty shape. The total area, size, or shape of the dielectric substrate 201 may be substantially the size, length, or thickness of the radiating element modules 210, 220, 230, and 240 according to the frequency band supported by the second antenna 200. Can be determined as adjusted. The triple band dual polarization dipole antenna system 103 of the present invention is used as an antenna such as a mobile communication repeater or a base station, but is preferably made compact in order to facilitate installation and adjustment. Accordingly, the dielectric substrate 201 may be determined to have an appropriate size to satisfy the above-described small characteristics while the radiating element modules 210, 220, 230, and 240 are installed according to the characteristics of the supported frequency band.

Meanwhile, contact holes penetrating the front and rear surfaces may be provided on the dielectric substrate 201. These contact holes may be formed at the center point of each of the radiating element modules 210, 220, 230, and 240. The contact holes may serve as core wire holes through which cables 250 are connected to feed signals. After the ends of the cables 250 are inserted into the contact holes, the cables 250 are fixed on the dielectric substrate 201 through soldering to form the contacts 213, 223, 233, and 243. The contacts 213, 223, 233, and 243 are located at the center of the radiating element modules 210, 220, 230, and 240, and are electrically connected to the respective radiating element modules 210, 220, 230, and 240. . As a result, the cables 250 are connected to the contact holes to form the contacts 213, 223, 233, and 243, and the corresponding contacts 213, 223, 233, and 243 correspond to the radiating element modules 210 and 220. And the second antenna 200 according to the present invention, the cables 250 and the respective radiating element modules 210, 220, 230, and 240 are connected to the contacts 213, 223, and 233. , 243) may be provided to interconnect the structure.

In addition, substrate holes 261 penetrating the front and rear surfaces of the substrate may be provided on the dielectric substrate 201. The substrate holes 261 may be provided in plural on the dielectric substrate 201, so that the second antenna 200 may be firmly supported by the second support 260 having one side fixed to the reflector 50. Two or more may be provided. In the drawings, eight substrate holes 261 are provided as a reference, but the present invention is not limited thereto, and the second support 260 is not installed in the eight substrate holes 261. The second support 260 may be installed only in the substrate hole 261. That is, the second support 260 may be installed in at least two places, for example, four substrate holes 261. In this case, the substrate holes 261 in which the second support 260 is installed may be selected to have mutually symmetrical substrate holes for firm support.

The four radiating element modules 210, 220, 230, and 240 are the first radiating element module 210, the second radiating element module 220, the third radiating element module 230, and the fourth radiating element module 240. ). The four radiating element modules 210, 220, 230, and 240 may be formed by printing copper foil on front and rear surfaces of the dielectric substrate 201, respectively. The thickness, width and length of the copper foil to be printed may be adjusted according to a frequency band supported by the second antenna 200 of the present invention.

45도 각도로 편파 광대역 특성을 제공할 수 있다.Meanwhile, the first radiating element module 210 and the second radiating element module 220 may be arranged in a symmetrical structure with respect to the vertical center line of the drawing. Similarly, the third radiating element module 230 and the fourth radiating element module 240 may be arranged in a symmetrical structure with respect to the vertical center line. Meanwhile, the first radiating element module 210 and the third radiating element module 230 may be electrically connected to each other based on the twenty-first feed line 321 provided in the cable 250 and the feeding part 300. The module 220 and the fourth radiating element module 240 may also be electrically connected based on the twenty-second feed line 322 provided in the cable 250 and the feed unit 300. Accordingly, the four radiating element modules 210, 220, 230, and 240 of the present invention may include a first dipole antenna 210 and 230 including a first radiating element module 210 and a third radiating element module 230. And second dipole antennas 220 and 240 including the second radiating element module 220 and the fourth radiating element module 240 cross each other. Particularly, the first dipole antennas 210 and 230 and the second dipole antennas 220 and 240 of the present invention have a "C" shape and an "X" shape to cross each other.

It can provide polarized broadband characteristics at a 45 degree angle.

The first radiating element module 210 includes an eleventh side dipole 211, a twelfth side dipole 212, and a first contact 213. Here, the eleventh side dipole 211 is disposed on the front surface of the dielectric substrate 201, and the twelfth side dipole 212 is disposed on the rear surface of the dielectric substrate 201. The eleventh side dipole 211 and the twelfth side dipole may have a “-” shape and may be designed. The thickness, length, and width of the eleventh side dipole 211 and the twelfth side dipole 212 may be adjusted according to a frequency band supported by the second antenna 200. Meanwhile, the first radiating element module 210 may have a symmetrical structure with respect to the first contact 213. In particular, the first radiating element module 210 has a symmetrical structure of the front and rear surfaces of the dielectric substrate 201 based on the first contact 213. That is, the eleventh side dipole 211 is disposed on the front surface of the dielectric substrate 201 and electrically connected to the first contact point 213, and the twelfth side dipole 212 is symmetrical with the eleventh side dipole 211. It is disposed on the rear surface of the substrate 201 and is electrically connected to the first contact 213. Accordingly, the eleventh side dipole 211 and the twelfth side dipole 212 are disposed symmetrically with a phase difference of 180 degrees in front and rear surfaces. The first contact 213 may be formed while soldering to the above-described contact hole. The first contact 213 may be electrically connected to the first cable 251 during the soldering operation.

The second radiating element module 220 includes a twenty-first side dipole 221, a twenty-second side dipole 222, and a second contact point 223. The third radiating element module 230 is disposed in a diagonal direction with the first radiating element module 210 and is disposed at a position rotated 90 degrees to the right with the second radiating element module 220. The third radiating element module 230 includes a thirty-first side dipole 231, a thirty-second side dipole 232, and a third contact point 233. The fourth radiating element module 240 is disposed in a diagonal direction with the second radiating element module 220 and is disposed at a position rotated 90 degrees in a right direction with respect to the third radiating element module 230. The fourth radiating element module 240 includes a 41 th side dipole 241, a 42 th side dipole 242, and a fourth contact point 243. The dipoles described above may have shapes similar to those of the eleventh side dipole 211 and the twelfth side dipole 212, but may have similar or opposite directions. Each of the dipoles has a cross feed provided at a feed part 300 to which impedance matching is primarily performed by a cable 250 connected to the contacts 213, 223, 233, and 243, and the other end of the cable 250 is connected. Secondary matching may be made by the device 330. Here, the cross feeder 330 may include a through hole to which both ends of a feeder line electrically connecting the cable connecting parts may be connected. In more detail, the cross feeder 330 includes an insulating layer disposed below the malleable 21st feed line, a connection pattern disposed below the insulating layer, and a connection pattern formed on the insulating layer to expose the connection pattern to one end of the 22nd feeder line. And a through hole formed to be connected to the other end portion.

As described above, the second antenna 200 of the present invention has a form in which a cable 250 from which a separate balun is removed is connected to a contact point, and an antenna pattern is disposed using both front and rear surfaces of the substrate, and the center of the second antenna 200 is hollow. By being provided on the substrate, it is possible to improve the directivity and electrical characteristics of the radio wave while minimizing the volume required for the actual antenna design.

Meanwhile, the power supply unit 300 is connected to each of the radiating element modules provided in the second antenna 200 through a cable 250. The power supply unit 300 may support the radiating element modules symmetrically provided on the second antenna 200 to be interconnected to provide good dual polarization characteristics while minimizing the generation of intermodulation distortion signals between the radiating elements.

The feeder 300 includes a second printed circuit board 301, four cable connections 311, 312, 313, and 314, a cross feeder 330, feeders 321 and 322, and a feed hole 340. ). The second printed circuit board 301 is disposed and fixed to the front and rear surfaces of the reflector plate 50, four cable connections 311, 312, 313, and 314, the cross feeder 330, the feed lines 321, and the like. 322 and the feed hole 340 is provided. In particular, the feed lines 321 and 322 may be formed of copper foil on the second printed circuit board 301. The feed hole 340 may perform a function of transmitting a signal transmitted to the second antenna 200 through the feeder 300 or transmitting a signal received by the second antenna 200. In addition, a plurality of fixing holes 350 may be provided at one side of the feed part 300 to fix the feed part 300 on the reflector plate 50. In the fixing hole 350, a fixing member for fixing the power feeding part 300 to the reflecting plate 50 may be disposed. Meanwhile, the power supply unit 300 may be disposed at a position corresponding to the center of the second antenna 200 such that the cables 250 have the same distance from each of the radiating element modules 210, 220, 230, and 240. have.

The four cable connections 311, 312, 313, and 314 respectively remove the first cable connection 311 and the second cable 252 which connect the first cable 251 to the second printed circuit board 301. 2 The second cable connecting portion 312 for connecting the printed circuit board 301, the third cable connecting portion 313 for connecting the third cable 253 to the second printed circuit board 301, and the fourth cable 254. The fourth cable connecting portion 314 may be connected to the second printed circuit board 301. After the cables 250 are connected to the respective contacts 213, 223, 233, and 243, a structure in which the cables 250 are connected to the cable connections 311, 312, 313, and 314 is arranged. When 230 and 240 are orthogonal to have symmetry, they may have better signal characteristics. Accordingly, the four cable connections 311, 312, 313, and 314 are connected to the respective contacts 213, 223, 233, and 243 formed on the dielectric substrate 201, and the respective radiating element modules 210, 220, and 230 are connected. , 240 is preferably arranged in a direction orthogonal to each other.

The feed lines 321 and 322 are formed to connect the twenty-first feed line 321 connecting the first cable connection 311 and the third cable connection 313, the second cable connection 312 and the fourth cable connection 314. 22 may include a feed line 322. The twenty-first feed line 321 and the twenty-second feed line 322 may be formed as copper foil lines on the second printed circuit board 301, respectively. Meanwhile, the cross feeder 330 may be disposed at a point where the feed lines 321 and 322 cross each other. The cross feeder 330 is configured to support the 21st feed line 321 and the 22nd feed line 322 to be electrically separated from each other.

The cross feed device 330 of the present invention is connected to one end 322a of the twenty-second feed line 322 connected to the second cable connection part 312 and the fourth cable connection part 314 through the through hole 323. The other end 322b of the twenty-second feed line 322 may be interconnected. The cross feeder 330 includes a connection pattern 303 formed on the printed circuit board 301 and an insulating layer 305 covering both regions of the connection pattern 303 except for the through hole 323. It can be prepared as. The twenty-first feed line 321 may be disposed on the insulating layer 305 to be electrically spaced apart from the twenty-second feed line 322 and cross the cross feed device 330. Both ends of the connection pattern 303 may be electrically connected to one end 322a of the twenty-second feed line 322 and the other end 322b of the second feed line 322 through soldering operations.

Meanwhile, the above-described cross feeder 330 has been described as a structure formed on the printed circuit board 301, but the present invention is not limited thereto. That is, the cross feeder 330 of the present invention may be provided in a portion of the printed circuit board 301 when the printed circuit board 301 is formed of a multilayer, and thus the through hole 323 is formed on the printed circuit board. It may be formed directly at 301. In this case, the above-described connection pattern 303 may be disposed in the form of connecting the through hole 323 inside the printed circuit board 301. An insulating layer 305 may be formed on the connection pattern 303, and a twenty-first feed line 321 may be formed on the copper foil line. The ends 322a and 322b of the twenty-second feed lines 322 may be connected to the through holes 323 by soldering or the like. The cross feed device 330 may be designed and provided at the time of manufacturing the first printed circuit board 301 to support PIMD while improving the process. Meanwhile, in the present embodiment, an example in which the through hole 323 is formed is disclosed, but an air bridge may be installed instead of the through hole 323.

Since the electrical signals of the twenty-first feed line 321 and the twenty-second feed line 322 do not interfere with each other based on the structure of the cross feed device 330, the intermodulation distortion signal of the radio wave is improved. In addition, when the twenty-first feed line 321 and the twenty-second feed line 322 connected to the first dipole antennas 210 and 230 and the second dipole antennas 220 and 240 respectively cross based on the cross feed device 330. The phase and power ratios may be improved, and the pattern characteristics of the electrical signals, such as beam width and tracking, may be improved. In addition, due to the structure of providing the cross feed device 330 by attaching the insulating layer 305 or formed on the printed circuit board 301, the operation of the connection between the feed unit 300 and the dual polarized dipole antenna 200 It is effective in improving sex.

8 is a view showing a shape commonly applied to the first support 160 and the second support 260 of the present invention. Since the first support 160 and the second support 260 may be manufactured to have a similar external shape, the support structure of the present invention will be described in more detail based on the second support 260.

Referring to FIG. 8, the second support 260 of the present invention is connected to a first insertion nib 265a and a first insertion nib 265a which are inserted into and fixed to a plate hole (not shown) formed in the reflective plate 50. 2 is a substrate hole 261 connected to the support shaft 263 and the support shaft 263 to maintain the antenna 200 at a predetermined height from the reflecting plate 50 and formed in the dielectric substrate 201 of the second antenna 200. And a second insertion tip 265b inserted into and fixed to the second insertion tip 265b. The first disk 266a is disposed between the first insertion tip 265a and the support shaft 263, and the second disk 266b is disposed between the second insertion tip 265b and the support shaft 263. .

The first insertion tip 265a and the second insertion tip 265b may be adjusted according to sizes of the plate hole and the substrate hole 261 to be inserted. In addition, the size of the first disk 266a and the second disk 266b may be designed differently according to the characteristics of the reflector 50 and the dielectric substrate 201 and the characteristics of the plate hole and the substrate hole 261.

The first insertion tip 265a and the second insertion tip 265b may be bent when inserted into a wedge shape, and after the insertion, the wedge shape may be restored to support the inserted dielectric substrate 201 or the reflecting plate 50. It is machined from a material that is both rigid and elastic.

The first disk 266a and the second disk 266b have a round plate shape connected to the first insertion tip 265a and the second insertion tip 265b, and reflect the plate according to the insertion of the insertion tips 265a and 265b. 50 may be in contact with the front surface of the dielectric substrate 201 to prevent the reflecting plate 50 or the dielectric substrate 201 from flowing in the center direction of the support shaft 263. To this end, the first disk 266a and the second disk 266b may have a plate shape extending at a predetermined inclination angle from the surface of the support shaft 263, and when the insertion tips 265a. 265b are inserted, 50) or the surface of the dielectric substrate 201 and the edge region are in contact with each other to provide elasticity by the inclination angle.

Meanwhile, the above-described triple band dual polarization dipole antenna system 103 may provide an array structure in which a plurality of triple band dual polarization dipole antenna systems 103 are disposed on the reflector plate 50. In particular, the triple band dual polarized dipole antenna array 102 of the present invention can support the improved signal characteristics of a more concentrated frequency band by properly disposing the first antenna 100 and the second antenna 200. This will be described in more detail with reference to FIGS. 9 and 10.

9 is a diagram illustrating a triple band dual polarized dipole antenna array 102 according to an embodiment of the present invention, and FIG. 10 is a perspective view of the triple band dual polarized dipole antenna array 20 according to the present invention. FIG. 10 illustrates only portions of the first to fourth type antenna systems 1, 2, 3, and 4.

9 and 10, the triple band dual polarized dipole antenna array 102 of the present invention includes a first type antenna system 1, a second type antenna system 2, a third type antenna system 3, The fourth type antenna system 4, the fifth type antenna system 5, the sixth type antenna system 6 and the seventh type antenna system 7 are configured in the form listed on the reflecting plate 50 at regular intervals. Can be.

The first type antenna system 1 may be configured to include a second antenna 291, a power supply unit 300 and a cable 250 for supporting the second antenna 291. That is, the first type antenna system 1 includes a reflector 50, a feeder 300 disposed on the reflector 50, and a feeder 300 disposed in the center and arranged in a first direction. 291, one side may include a cable 250 connected to the radiating element modules of the second antenna 291, and the other side thereof is connected to the feeder 300. In this case, the second antenna 291 may be disposed at a height spaced apart from the surface of the reflector 50 by a second support by a predetermined height. The height of the second antenna 291 spaced apart from the reflecting plate 50 by the second support 260 may vary depending on the second frequency band supported by the second antenna 291. The antenna pattern disposed on the front surface of the substrate of the second antenna 291 constituting the first type antenna system 1 may be disposed in the first direction toward the right of the drawing, that is, toward the center of the reflector 50. That is, the opening direction of the “C” shaped dual polarized dipole antenna pattern printed on the front surface of the substrate may be disposed in a direction facing the center of the reflector 50.

The second type antenna system 2 is configured by simultaneously arranging a first antenna 192, a second antenna 292, a cable, and a feeder. That is, the second type antenna system 2 may be configured such that the first antenna 192 is disposed at the center of the second antenna 292. In this case, the second type antenna system 2 may be disposed on the reflector 50 spaced apart from the first type antenna system 1 by a predetermined interval. On the other hand, the antenna pattern of the second antenna 292 included in the second type antenna system 2 is similar to the first type antenna system 1, and the “c” shaped antenna pattern opening has a center direction of the reflector 50. It may be arranged to look in the first direction. In addition, the opening of the pattern in the antenna pattern of the first antenna 192, which is included in the second type antenna system 2, and the “c” shaped dual polarized dipole antenna portions are formed in the form of an X-shaped overlap, is the reflecting plate 50. The first antenna 192 may be disposed to be disposed in the center direction of the first antenna 192. As a result, the first antenna 192 and the second antenna 292 constituting the second type antenna system 2 may be arranged in a first direction in which an antenna pattern formed on a front surface thereof faces the center of the reflector 50. Meanwhile, a feeder for the second antenna 292 may be provided below the first antenna 192.

The third type antenna system 3 may be configured to have the same structure as the first antenna 193. The arrangement of the third type antenna system 3 may be arranged in the same first direction as the first antenna 192 of the second type antenna system 2. Alternatively, according to the designer's intention, the third type antenna system 3 may be arranged in a second direction different from the first direction. Meanwhile, the third type antenna system 3 may be fixedly disposed at a height spaced apart from the surface of the reflector 50 by the height of the first support 160. To this end, at least one first support 160 may be disposed between the third type antenna system 3 and the reflector 50 while being engaged with the reflector 50 and the third type antenna system 3.

The fourth type antenna system 4 includes a feeder disposed on the reflecting plate 50, a first antenna 194 disposed on the feeder, and a second antenna 294 disposed above the first antenna 194. It may be configured in the form including a cable connecting the feeder and the second antenna (294). The fourth type antenna system 4 may be configured in a form similar to that of the second type antenna system 2 and may be formed on the reflector 50 spaced apart from the third type antenna system 3 by a predetermined distance. . However, the fourth type antenna system 4 may have a second direction different from the first direction of the antenna patterns included in the second type antenna system 2, for example, a direction opposite to the first direction, that is, a direction reversed by 180 degrees. It can be arranged as. That is, among the antenna patterns of the second antenna 294 included in the fourth type antenna system 4, the antenna patterns formed on the front surface of the substrate are located in the left direction, that is, in the center of the reflector 50 based on the drawings described. It may be arranged in the direction in which the antenna system 3 is arranged. In addition, the direction of the antenna pattern of the first antenna 194 included in the fourth type antenna system 4 may also be arranged in the second direction in which the third type antenna system 3, which is the center direction of the reflector 50, is disposed. have. The first antenna 194 may be positioned at a height spaced apart from the surface of the reflector 50 by a predetermined height, and a feeder may be disposed below the first antenna 194. That is, the fourth type antenna system 4 may have a phase that is 180 degrees out of phase when compared with the second type antenna system 2.

The fifth type antenna system 5 may be formed on the reflector plate 50 spaced apart from the fourth type antenna system 4 by a predetermined distance. The fifth type antenna system 5 may have the same structure as the third type antenna system 3.

The sixth type antenna system 6 may be formed on the reflector plate 50 spaced apart from the fifth type antenna system 5 by a predetermined distance. The sixth type antenna system 6 may have the same structure as the second type antenna system 2.

In addition, the seventh type antenna system 7 may be formed on the reflective plate 50 to be spaced apart from the sixth type antenna system 6 by a predetermined interval. The seventh type antenna system 6 may have the same structure as the first type antenna system 1.

As described above, in the triple band dual polarization dipole antenna array 102 according to the present invention, first to third type antenna systems 1, 2, and 3 are disposed on one side symmetrically with respect to the fourth type antenna system 4. The other side may have a structure in which the fifth to seventh type antenna systems 5, 6, and 7 are arranged. In this case, the fourth type antenna system 4 is inverted by 180 degrees when compared to the first to third type antenna systems 1, 2, and 3, and the fifth to seventh type antenna systems 5, 6, and 7. May have

The tri-band dual polarization dipole antenna array 102 of the present invention is arranged by the antenna pattern to be symmetrical around the center point of the reflector 50, for example, the fourth type antenna system (4) to provide a signal concentration effect The antennas in the frequency bands can be arranged at appropriate positions to minimize interference between signal transmission and reception. In addition, the triple band dual polarized dipole antenna array 102 of the present invention can support to minimize the area occupied by the antenna by providing an overlapping structure of the first antenna and the second antenna.

As described above, in the triple band dual polarized dipole antenna array 102 using phase inversion, the cross-polar ratio (CPR) characteristics are improved as illustrated in FIGS. 11A to 12B. 11A and 11B are graphs showing antenna patterns of a triple band dual polarized dipole antenna array without phase inversion. 12A and 12B are graphs showing antenna patterns of the triple band dual polarized dipole antenna array 102 using the phase inversion of the present invention.

11A and 11B, the CPR pattern shows left and right asymmetrical shapes. Referring to FIGS. 12A and 12B, the CPR pattern shows left and right symmetrical shapes. This means that the triple band dual polarized dipole antenna array 102 using phase inversion according to the present invention has improved overall CPR characteristics. That is, in the case of the present invention, since the direction in which the dipoles are arranged is reversed by 180 degrees, the feed phases up to the dipoles are rotated by 180 degrees. By using this technique, CPR characteristics having poor flatness as shown in FIGS. 11A and 11B and good flatness as shown in FIGS. 12A and 12B can be provided. In addition, in the present invention, the horizontal beam width can be uniformized from 63 to 66 to 64 to 65 while improving CPR.

Meanwhile, in the above description, a form in which five types of antenna systems are disposed has been described, but the present invention is not limited thereto. That is, according to the designer's intention, the triple band dual polarization dipole antenna array 102 of the present invention includes at least one antenna system including only a first antenna, at least one antenna including a combination of a first antenna, a second antenna, a cable, and a feeder. At least one antenna system consisting of the system, the second antenna and the cable, and the power supply unit may be combined to form an array. For example, an antenna system having the same configuration as that of the first type antenna system 1 but having a phase reversed by 180 degrees compared to the first type antenna system 1 may be applied to a triple band dual polarized dipole antenna array. Alternatively, an antenna system having the same configuration as that of the third type antenna system 3 but having a phase reversed by 180 degrees compared to the third type antenna system 3 may be applied to the triple band dual polarized dipole antenna array.

In addition, the embodiment of the present invention discloses an example in which the fourth type antenna system 4 is inverted by 180 degrees compared with other types of antenna systems, but is not limited thereto. For example, the second and sixth type antenna systems 2, 6 may be arranged such that their 180 degree phases are reversed compared to other types of antenna systems.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

102: triple band dual polarized dipole antenna array
103: triple band dual polarized dipole antenna system
5, 6, 7, 8, 9: antenna system
10, 301: printed circuit board 11: first dipole
12: second dipole 15: ground portion
16: beer hall 20, 21, 321, 322: feeder
22: stepped radiating element 23: balun
30: core wire 40: air bridge
50: reflector 160, 260: support
80: first dual polarization dipole antenna unit
90: second dual polarization dipole antenna unit
100: first antenna 200: second antenna
201: dielectric substrate
210, 220, 230, 240: radiating element module
250, 251, 252, 253, 254: Cable
300: feeder
311, 312, 313, 314: cable connection

Claims (21)

A first antenna having a dual polarization dipole antenna unit disposed at at least one of a front surface and a rear surface of a plate shape;
A second antenna having a plurality of radiating element modules disposed in at least one of a front surface and a rear surface of an annular substrate having an empty center such that the first antenna is disposed at the center;
Cables connected to center points of the plurality of radiating element modules;
A feed unit to which the cables are connected and a pattern is formed such that the cables are connected to each other cross each other;
A reflector on which the feed part, the first antenna, and the second antenna are disposed;
Triple band dual polarization dipole antenna system comprising a. The method of claim 1,
The first antenna
A first printed circuit board;
And at least one of a first dual polarization dipole antenna unit formed on one surface of the printed circuit board and a second dual polarization dipole antenna unit formed on the other surface thereof.
The first or second dual polarization dipole antenna unit
A first dipole formed with a balun by forming a tapered matching circuit in which the widths of both ends of the U-shaped tape are gradually reduced, and copper foil-printed on one surface of the printed circuit board;
A second dipole printed on copper foil in a position similar to that of the first dipole at a position rotated 90 degrees about an axis of the printed circuit board with respect to the longitudinal direction of the first dipole;
A ground part formed on one surface of the printed circuit board and formed at a portion where the first dipole and the second dipole overlap;
An eleventh feed line having a copper foil line connecting the end of the first dipole formed on one surface of the printed circuit board;
A second feed line connecting the ends of the second dipoles, the second feed line of which both ends are proximate the center of the eleventh feed line, and at least one via hole formed at each end of the second feed line;
A core wire hole formed to penetrate both sides of the printed circuit board to insert a cable for transmitting a feed signal to the eleventh feed line and the second feed line;
An air bridge electrically connecting both ends of the second feed line;
Triple band dual polarization dipole antenna system comprising a. The method of claim 1,
The feed section
A second printed circuit board;
Cable connection parts formed in an edge region of the second printed circuit board to which the cables are connected;
Feed lines connecting the cable connections in pairs;
Triple band dual polarization dipole antenna system comprising a. The method of claim 3,
The radiating element modules
A first radiating element module and a third radiating element module which are connected to cables connected to cable connection parts arranged in a first diagonal direction and are connected to a first feed line to form a first dipole antenna;
A second radiating element module and a fourth radiating element module which are connected to cables connected to cable connection parts arranged in a second diagonal direction and are connected to a second feed line to form a second dipole antenna;
Triple band dual polarization dipole antenna system comprising a. 5. The method of claim 4,
The feed section
A cross feeder arranged in an area where the twenty-first feed line and the twenty-second feed line cross each other to electrically separate the twenty-first feed line and the twenty-second feed line;
Triple band dual polarization dipole antenna system further comprises. The method of claim 5,
The cross feed device
An insulation layer disposed below the first feed line;
A connection pattern disposed under the insulating layer;
A draw hole or air bridge formed in the insulating layer to be connected to one end and the other end of the second feed line by exposing the connection pattern;
Triple band dual polarization dipole antenna system comprising a. The method of claim 1,
At least one first support for fixing the first antenna spaced apart from the surface of the reflector by a predetermined height;
At least one second support for fixing the second antenna spaced apart from the surface of the reflector by a predetermined height;
Triple band dual polarization dipole antenna system further comprises. The method of claim 7, wherein
The second support is
Triple band dual polarization dipole antenna system characterized in that formed above or below the height of the first support. The method according to any one of claims 1 to 8,
An isolation plate provided on the reflecting plate outside the portion where the first or second antenna is installed;
Triple band dual polarization dipole antenna system further comprises. At least one antenna system composed of only a first antenna having a dual polarization dipole antenna portion disposed in at least one of a front surface and a rear surface of a plate shape;
It consists of a second antenna in which a plurality of radiating element modules are formed partly connected to the front and rear of the annular substrate in the center and a feeding part for supporting the cable and cable connection and feeding for cross-connecting the radiating element modules At least one antenna system;
At least one antenna system including the first antenna, the second antenna, a cable, and a feeder;
Triple band dual polarization dipole antenna array comprising a. The method of claim 10,
At least one first support for fixing the first antenna spaced apart from the surface of the reflector by a predetermined height;
At least one second support formed higher than the height of the first support and spaced apart from the surface of the reflector by a predetermined height;
Triple band dual polarization dipole antenna array further comprising. A plurality of radiating element modules, which are formed partly on the front and rear surfaces of the annular substrate having an empty center, support a cable and a cable connection and a power supply for cross-connecting the radiating element modules with a second antenna arranged in a first direction. At least one first type antenna system comprising a feeding unit;
A first antenna having a dual polarization dipole antenna portion disposed in a first direction and at least one of a plate-shaped front surface and a rear surface; and the second antenna having the first antenna disposed in a center and the radiating element modules disposed in a first direction; At least one second type antenna system comprising a cable and the feed section;
At least one third type antenna system having a dual polarization dipole antenna portion disposed in at least one of a front and rear surfaces having a plate shape and having only a first antenna disposed in a first direction;
At least one fourth type antenna system comprising a first antenna, a second antenna, a cable, and a feeder disposed in a second direction inverted 180 degrees with the first direction;
A reflector on which the first type antenna system, the second type antenna system, the third type antenna system and the fourth type antenna systems are placed;
Triple band dual polarization dipole antenna array comprising a. The method of claim 12,
The first antenna
A first printed circuit board;
And at least one of a first dual polarization dipole antenna unit formed on one surface of the printed circuit board and a second dual polarization dipole antenna unit formed on the other surface thereof.
The first or second dual polarization dipole antenna unit
A first dipole formed with a balun by forming a tapered matching circuit in which the widths of both ends of the U-shaped tape are gradually reduced, and copper foil-printed on one surface of the printed circuit board;
A second dipole printed on copper foil in a position similar to that of the first dipole at a position rotated 90 degrees about an axis of the printed circuit board with respect to the longitudinal direction of the first dipole;
A ground part formed on one surface of the printed circuit board and formed at a portion where the first dipole and the second dipole overlap;
An eleventh feed line having a copper foil line connecting the end of the first dipole formed on one surface of the printed circuit board;
A second feed line connecting the ends of the second dipoles, the second feed line of which both ends are proximate the center of the eleventh feed line, and at least one via hole formed at each end of the second feed line;
A core wire hole formed to penetrate both sides of the printed circuit board to insert a cable for transmitting a feed signal to the eleventh feed line and the second feed line;
An air bridge electrically connecting both ends of the second feed line;
Triple band dual polarization dipole antenna array comprising a. The method of claim 12,
The feed section
A second printed circuit board;
Cable connection parts formed in an edge region of the second printed circuit board to which the cables are connected;
Feed lines connecting the cable connections in pairs;
/ RTI >
The radiating element modules
A first radiating element module and a third radiating element module which are connected to cables connected to cable connection parts arranged in a first diagonal direction and are connected to a first feed line to form a first dipole antenna;
A second radiating element module and a fourth radiating element module which are connected to cables connected to cable connection parts arranged in a second diagonal direction and are connected to a second feed line to form a second dipole antenna;
Triple band dual polarization dipole antenna array comprising a. 15. The method of claim 14,
A cross feeder disposed in an area where the twenty-first feed line and the twenty-second feed line cross each other to electrically separate the twenty-first feed line and the twenty-second feed line;
The cross feed device
An insulation layer disposed below the first feed line;
A connection pattern disposed under the insulating layer;
A draw hole or air bridge formed in the insulating layer to be connected to one end and the other end of the second feed line by exposing the connection pattern;
Triple band dual polarization dipole antenna array comprising a. The method of claim 12,
At least one first support for fixing the first antenna spaced apart from the surface of the reflector by a predetermined height;
At least one second support formed higher than the height of the first support and spaced apart from the surface of the reflector by a predetermined height;
Triple band dual polarization dipole antenna array further comprising. 17. The method according to any one of claims 12 to 16,
An isolation plate provided on the reflecting plate outside the portion where the first or second antenna is installed;
Triple band dual polarization dipole antenna array further comprising. 18. The method of claim 17,
The separation plate is a triple band dual polarization, characterized in that the upper portion of the c-shaped, "∩" type, straight, "∩" in the form of at least one of the T-shaped, a-V, V-shaped, "∧" type Dipole Antenna Array. The method of claim 12,
And at least one of the first and second type antenna systems symmetrically disposed on both sides of the fourth type antenna system. The method of claim 12,
A plurality of the fourth type antenna system is installed in the reflector plate position, wherein at least one of the first and second type antenna system is disposed on both sides of the plurality of the fourth type antenna system. Antenna array. The method of claim 12,
At least one fifth type antenna system disposed on the reflector and configured of a second antenna, a cable, and a feeder disposed in the second direction; And
At least one sixth type antenna system installed on the reflector and configured to have a dual polarization dipole antenna portion disposed at at least one of a front surface and a rear surface of a plate shape and having only a first antenna disposed in the second direction;
Triple band dual polarized dipole antenna array, characterized in that it further comprises at least one of.

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