WO2020027391A1 - Array antenna apparatus having wide elevation - Google Patents

Abstract

An array antenna apparatus having a wide elevation comprises: a first antenna for emitting a first beam; a second antenna for emitting a second beam; and a power feeding device for providing a first mode in which a phase difference between signals transferred to the first antenna and the second antenna does not exist, and a second mode in which the phase difference between the signals transferred to the first antenna and the second antenna is 90 degrees. The power feeding device performs control such that the first mode and the second mode are repeated, thereby forming a wide elevation for forming a multi-beam in which a broadside beam and an end-fire beam are combined.

Description

Array antenna device with wide elevation

The technique described below relates to an array antenna having a wide elevation angle.

Various antennas have been studied according to the development and change of wireless communication environment. Previous research has focused mainly on antennas having a wide azimuth angle in relation to communication service ranges. Recent antenna technologies or market environments require antennas with a wide elevation as well as azimuth. For example, 3D beamforming technology for 5G communication requires an antenna having a wide elevation angle. In addition, a dynamic communication environment in which various IoT devices exist requires an antenna having a wide elevation angle for smooth communication between objects having different heights (height).

Conventional antennas have a structure in which gain is reduced at wide elevation angles. Therefore, a high gain antenna is required in a wide elevation range. The technology described below is intended to provide an antenna device having a combined feature of a broadside array and an end-fire array.

An array antenna device having a wide elevation angle is a first mode in which there is no phase difference between a first antenna emitting a first beam, a second antenna emitting a second beam, and a signal transmitted to the first antenna and the second antenna. And a power feeding device providing a second mode in which a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees. The power feeding device controls the first mode and the second mode to be repeatedly performed, and the first antenna and the second antenna are horizontally disposed on a z-axis and have a distance within half-wavelength from each other.

In another aspect, an array antenna device having a wide elevation angle A first antenna radiating a first beam, a second beam radiating a second beam, a second antenna perpendicular to the first antenna, a third beam radiating a third antenna, a third antenna parallel to the first antenna, and a fourth beam A fourth antenna perpendicular to the third antenna while radiating, a first mode without a phase difference between the signal transmitted to the first antenna and the third antenna and between a signal transmitted to the first antenna and the third antenna In the first power supply providing the second mode having a phase difference of 90 degrees, and in the third mode and the second antenna and the fourth antenna without a phase difference between the signals transmitted to the second antenna and the fourth antenna. And a second power feeding device providing a fourth mode in which the phase difference between the signals to be transmitted is 90 degrees. The power feeding device controls the first mode and the second mode to be repeatedly performed, and the third mode and the fourth mode are repeatedly performed, and the first antenna and the third antenna are on the z axis. They are arranged horizontally and have a distance within half-waves from each other.

The Y-axis horizontal array antenna device having a wide elevation angle is linearly arranged at intervals within a half wavelength in the Y-axis direction from the first antenna in a first XY plane in which the first antenna radiates a first beam, and the first antenna is disposed. A second antenna radiating a second beam, a reflector disposed in a second XY plane having a spacing greater than a quarter wavelength from the first XY plane, and a signal transmitted to the first antenna and the second antenna A first mode without a phase difference, a second mode in which a phase difference between a signal transmitted to the first antenna and the second antenna is 90 degrees, and a phase difference occurs in a signal transmitted to the second antenna and the first antenna And a power supply device providing a third mode in which a phase difference between the signal transmitted to the second antenna is 90 degrees and a phase difference occurs in the signal transmitted to the first antenna. The power feeding device controls the first mode, the second mode, and the third mode to be repeatedly performed.

In another aspect, a Y-axis horizontal array antenna device having a wide elevation angle includes a first array antenna including a first antenna and a second antenna linearly disposed at intervals within half-wavelength along a Y-axis direction in a first XY plane, the first array A first reflector disposed parallel to the first XY plane at a separation distance greater than 1/4 wavelength in the Z axis direction from the antenna, a third antenna arranged linearly at intervals within a half wavelength along the X axis direction in the first XY plane; A second array antenna including a third antenna, a second reflector disposed parallel to the first XY plane at a separation distance greater than a quarter wavelength from the second array antenna in a Z-axis direction, the time-dependent A first feeding device for controlling a section having a phase difference of 0 degrees and a section having 90 degrees to be repeated between a first antenna and a signal transmitted to the second antenna;

And a second power feeding device that controls a section in which a phase difference between a signal transmitted to the third antenna and the fourth antenna is 0 degrees and a section having 90 degrees is repeated as time passes.

In another aspect, the Y-axis horizontal array antenna device having a wide elevation angle includes a first antenna that radiates a first beam, and a distance within half-wavelength in the Y-axis direction from the first antenna in a first XY plane in which the first antenna is disposed. A second antenna radiating a second beam, a waveguide disposed in a second XY plane having a distance greater than a quarter wavelength from the first XY plane, and in the first antenna and the second antenna. A first mode in which there is no phase difference between the transmitted signals, a second mode in which a phase difference between the signals transmitted to the first antenna and the second antenna is 90 degrees and a phase difference occurs in a signal transmitted to the second antenna And a power feeding device providing a third mode in which a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees and a phase difference occurs in a signal transmitted to the first antenna. . The waveguide is disposed in front of the first antenna and the second antenna, and the power supply device controls the first mode, the second mode, and the third mode to be repeatedly performed.

The technique described below dynamically adjusts a signal phase supplied to a plurality of linear array antennas to form a beam having a wide elevation angle in which broad side shaving and end-fire beams are combined.

1 is an example of an IoT environment for performing wireless communication.

2 is an example of a broad side arrangement and an end-fire arrangement for N linear array antennas.

3 is an example of a z-axis horizontal array antenna.

4 is an example of a structure of a power feeding device for the antenna of FIG.

5 is an example of the antenna radiation pattern of FIG.

6 is an example of a z-axis array antenna.

FIG. 7 is an example of a structure of a power feeding device for the horizontal array antenna of FIG. 6.

FIG. 8 is an example of a structure of a power feeding device for the vertically arranged antenna of FIG. 6.

9 is an example of the antenna radiation pattern of FIG.

10 is an example of a Y-axis horizontal array antenna device.

11 is another example of a Y-axis horizontal array antenna device.

12 is another example of a Y-axis horizontal array antenna device.

FIG. 13 is an example of a structure of a power feeding device for the antenna of FIGS. 10 to 12.

FIG. 14 is an example of a radiation pattern of the antenna device of FIG. 10.

FIG. 15 is an example of a radiation pattern of the antenna device of FIG. 11.

FIG. 16 is an example of a radiation pattern of the antenna device of FIG. 12.

17 is another example of a Y-axis horizontal array antenna device.

18 is an example of a structure of a power feeding device for the antenna of FIG.

19 is an example of the antenna radiation pattern of FIG.

20 is an example illustrating a combined form of a radiation pattern formed by the antenna device of FIG. 17.

The following description may be made in various ways and have a variety of embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the technology described below to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the technology described below.

The terms first, second, A, B, etc. may be used to describe various components, but the components are not limited by the terms, but merely for distinguishing one component from other components. Only used as For example, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component without departing from the scope of the technology described below. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It is to be understood that the present invention means that there is a part or a combination thereof, and does not exclude the presence or addition possibility of one or more other features or numbers, step operation components, parts or combinations thereof.

Prior to the detailed description of the drawings, it is intended to clarify that the division of the components in the present specification is only divided by the main function of each component. That is, two or more components to be described below may be combined into one component, or one component may be provided divided into two or more for each of the more detailed functions. Each of the components to be described below may additionally perform some or all of the functions of other components in addition to the main functions of the components, and some of the main functions of each of the components are different. Of course, it may be carried out exclusively by.

In addition, in performing the method or operation method, each process constituting the method may occur differently from the stated order unless the context clearly indicates a specific order. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

1 is an example of an IoT environment for performing wireless communication. 1 is an example of an environment in which an antenna for wireless communication is used. 1 illustrates an example of an autonomous vehicle and a drone in an IoT environment. The vehicle 21 performs vehicle to vehicle (V2V) communication with another vehicle 22. Furthermore, the vehicle can communicate with the infrastructure installed around the road. The vehicle 21 communicates (V2I: Vehicle to Infra) with the infrastructure 10 disposed above the building. The infrastructure 10 may be a device such as an AP that collects surrounding information. Vehicle 22 communicates with satellite 5 in the air. Drones have a similar communication environment. The drone 31 can communicate with other drones 32 (U2U: UAV to UAV). In addition, the drone 31 may communicate with the satellite 50. In this way, an object such as a vehicle or a drone is not in a horizontal plane, and can communicate with an object having a large height (altitude) difference. However, the current antenna has a problem that the gain is high only in the limited elevation range.

Recently, the World Radio Conference (WRC) under the International Telecommunication Union (ITU) has distributed the 5030-5150 MHz band for ground control of unmanned aerial vehicles worldwide. For the purpose of controlling unmanned aerial vehicles on the ground, the band 5030 ~ 5150MHz was allocated to create an environment capable of communication up to several km. The array antenna described below can also serve a 5000 MHz band.

The technique described below relates to an array antenna. The technique described below relates to an array antenna for generating multiple beams. The technology described below relates to an array antenna supporting a wide elevation range. The array antenna is briefly described first.

Single antenna elements do not have various radiation patterns. Developers can use array antennas when they want to develop antennas with a specific directivity (radiation pattern). Array antennas include arrays using two or more antenna elements simultaneously.

An array antenna may produce a uniform radiation pattern by arranging the antenna elements in a predetermined shape (geometrically). There are various kinds of antennas according to the arrangement of the antenna elements. For example, a linear array antenna is an antenna in which an array element center is disposed along a straight line. The spacing between the antenna elements in the linear array antenna can be constant.

The array antenna also controls the phase of the current supplied to the arrayed antenna elements to produce the desired radiation pattern. The array antenna electrically controls the amplitude and / or phase of the feed signal (current) supplied to the antenna element to produce a specific radiation pattern. Phase adjustment may use a phase shifter. The amplitude adjustment may use an attenuator.

The array antenna described below is a linear array antenna. Hereinafter, it is assumed that the antenna element constituting the array antenna is a dipole antenna. However, in addition to the dipole antenna, other types of antennas such as a monopole antenna, a loop antenna, a yagi antenna, a Vivaldi antenna, and a quasi-yagi antenna may be used.

2 is an example of a broad side arrangement and an end-fire arrangement for N linear array antennas. 2 (A) is an example of a linear array antenna. 2A shows an example in which N antenna elements are arranged in a horizontal state on the z axis. 2 (A) is a linear array antenna including seven dipole antennas. 2 (A) assumes that the spacing between antenna elements is within half wavelength. For example, the spacing between successive antenna elements may be 1 / 4λ.

FIG. 2B is an example of a broad side arrangement for the array antenna of FIG. 2A. The broad side arrangement produces maximum radiation in a direction perpendicular to the plane of the arrangement. 2 (B) shows an example where the maximum radiation occurs in the direction perpendicular to the z axis. In the case of a broad side arrangement, the antenna elements do not have a phase difference.

2 (C) is an example of an end-fire arrangement for the array antenna of FIG. 2 (A). The end-fire arrangement produces maximum radiation in the direction of the arrangement axis. 2C shows an example in which maximum radiation occurs in the z axis direction. In the end-fire arrangement, the antenna elements have a 90 ° phase difference.

First embodiment

3 is an example of a z-axis horizontal array antenna 100. 3 is an example of a linear array antenna using a dipole antenna. The array antenna of FIG. 3 includes a first dipole antenna 111 and a second dipole antenna 112. The first dipole antenna 111 and the second dipole antenna 112 transmit and receive signals of a predetermined band according to a performance request. For example, the first dipole antenna 111 and the second dipole antenna 112 may process a 5 GHz band signal.

The first dipole antenna 111 and the second dipole antenna 112 have a horizontal arrangement with respect to the z axis. The first dipole antenna 111 and the second dipole antenna 112 are arranged in different xy planes. At the same time, the first dipole antenna 111 and the second dipole antenna 112 are centered along the z axis. The distance d between the first dipole antenna 111 and the second dipole antenna 112 is within half wavelength (d ≦ 2 / λ). 3 illustrates an example of using two dipole elements, and in some cases, more elements may be used. However, even when using N elements, each antenna element is pre-arranged along the z axis.

The array antenna 100 may generate both a broad side beam and an end-fire beam. The array antenna 100 combines the broad side beam and the end-fire beam to provide a wide angle beam pattern. To this end, phase adjustment is required for the signal (power) for each antenna. The structure of the power feeding device for this purpose will be described.

4 is an example of a structure of a power feeding device 200 for the antenna of FIG. 3. The power feeding device 200 includes a first switch 210, a second switch 220, a third switch 230, a first half power divider 240, a second half power divider 250, and a phase converter 260. It includes. 4 omits a power supply to a signal supply. The power feeding device 200 controls the signals supplied to the first dipole antenna 111 and the second dipole antenna 112 to have a 0 ° or 90 ° phase difference with each other.

The signal RF _IN transmitted from the power source or the signal source is transmitted to the antenna via either of two paths. (1) The first path is transmitted to the first dipole antenna 111 via the first switch 210, the first half power divider 240 and the second switch 220 in order. In addition, the signal is transmitted to the second dipole antenna 112 via the first switch 210, the first half power divider 240, and the third switch 230 in order. (2) The second path is transmitted to the first dipole antenna 111 via the first switch 210, the second half power divider 250, and the second switch 220 in order. In addition, the signals are sequentially transmitted to the second dipole antenna 112 via the first switch 210, the second half power divider 250, the phase shifter 260, and the third switch 230.

A single pole double throw (SPDT) switch may be used for the first switch 210, the second switch 220, and the third switch 230. Two- way power dividers 240 and 250 distribute the power (signal) supplied. The half power divider can distribute the input power in half each. The phase converter 260 converts the phase of the input signal by 90 degrees.

The first switch 210 includes an input terminal, a first output terminal P1, and a second output terminal P3 connected to a power source or a signal source. The second switch 220 includes a first input terminal P3 connected to the first half power divider 240, a second input terminal P4 connected to the second half power divider 250, and a first dipole antenna 111. It includes an output terminal connected to. The third switch 230 may include a first input terminal P5 connected to the first half power divider 240, a second input terminal P6 receiving the output signal of the phase shifter 260, and a second dipole antenna 112. ) And an output terminal connected to the

When the connection state of the switch is shown in Table 1 below, the phase of the signal transmitted to the first dipole antenna 111 and the second dipole antenna 112 is 0 ° (the same) or has a 90 ° phase difference.

Beam pattern type	First dipole antenna phase	Second dipole antenna phase	Switch connection status
Beam pattern 1	0 °	0 °	P1, P3, P5
Beam pattern 2	0 °	90 °	P2, P4, P6

When the first switch 210 is connected to P1, the second switch 220 is connected to P3, and the third switch 230 is connected to P5, the first dipole antenna 111 and the second dipole antenna 112 are connected to the first half power. The signal output from the divider 240 is received without a phase difference. In this case, the array antenna 100 is in a broad side array state, and the first dipole antenna 111 and the second dipole antenna 112 radiate a broad side beam. The first switch 210 is P2 and the second switch. When 220 is P4 and the third switch 230 is connected to P6, the first dipole antenna 111 receives the signal output from the second half power divider 240 as it is, and the second dipole antenna 112. Receives a signal in which the 90 ° phase is converted by the phase converter 260. In this case, the array antenna 100 is in an end-fire arrangement, and the first dipole antenna 111 and the second dipole antenna 112 radiate an end-fire beam.

The power feeding device 200 transmits a signal in which the first dipole antenna 111 and the second dipole antenna 112 are in phase with each other or 90 ° out of phase with each other using the switches 210, 220, and 230. For convenience of description, a state in which signals transmitted to the first dipole antenna 111 and the second dipole antenna 112 have the same phase with each other is referred to as a first mode. A state in which signals transmitted to the first dipole antenna 111 and the second dipole antenna 112 have a 90 ° phase difference is referred to as a second mode. The power feeding device 200 may allow the first mode and the second mode to be repeatedly performed over time. That is, the power feeding device 220 operates in the first mode in the time section 1, operates in the second mode in the second section, operates in the first mode in the third section, and operates in the second mode in the fourth section. It can work. As described above, when the power feeding device 200 repeats the first mode and the second mode, the array antenna 100 may form a beam having a combination of a broad side beam and an end-fire beam.

5 is an example of the antenna radiation pattern of FIG. 5A is an example of a radiation pattern for a broad side beam. 5B is an example of a radiation pattern for an end-fire beam. 5 (C) shows the shape of the broad side beam and the end-fire beam in the zy plane (embossed plane). Experimental results show that beam patterns having elevation angles of 200 ° or more are formed through beam combinations of array antennas.

Item	Broadside beam	End-fire beam
elevation	170.6	142.4
Max gain (dBi)	2.54	5.56
Gain (θ> 90) (dBi)	> 2.45

Table 2 shows data for elevation angles and gains for beams formed by the array antenna 100. In Table 2, θ means the angle to form a beam. It can be seen that an effective gain is obtained even at an angle of more than 90 degrees.

Second embodiment

6 is an example of a z-axis array antenna 300. The array antenna 300 is a linear array antenna in which two unit antennas 310 and 320 are arranged on the z-axis.

One unit antenna is disposed on the xy plane. One unit antenna is composed of two dipole antennas. The first unit antenna 310 includes a first dipole antenna 311 and a second dipole antenna 312. The first dipole antenna 311 and the second dipole antenna 312 are arranged on the same xy plane. The first dipole antenna 311 and the second dipole antenna 312 have a form orthogonal to each other. It corresponds to a so-called ± 45 degree dipole antenna arrangement. The second unit antenna 320 includes a third dipole antenna 321 and a second dipole antenna 332. The third dipole antenna 321 and the fourth dipole antenna 322 are disposed on the same xy plane. The third dipole antenna 321 and the fourth dipole antenna 322 have a form orthogonal to each other. It corresponds to a so-called ± 45 degree dipole antenna arrangement. The center of the first unit antenna 310 and the second unit antenna 320 is arranged along the z axis. The distance d between the first unit antenna 310 and the second unit antenna 320 is within half wavelength (d ≦ 2 / λ). 6 illustrates an example of using two unit antennas. In some cases, more unit antennas may be used. Even when using N unit antennas, each unit antenna is arranged in advance along the z axis.

The array antenna 300 may generate both a broad side beam and an end-fire beam. The array antenna 300 combines the broad side beam and the end-fire beam to provide a wide-angle beam pattern. In the array antenna 300, the type (arrangement direction) of the dipole antennas included in each unit antenna is important for beam formation. The first dipole antenna 311 horizontal to the x-axis among the first unit antennas 310 and the third dipole antenna 321 horizontal to the x-axis among the second unit antennas have similar characteristics to beam formation. For convenience of description, the first dipole antenna 311 and the third dipole antenna 321 are referred to as horizontal array antennas. Meanwhile, the second dipole antenna 312 horizontal to the y axis of the first unit antenna 310 and the fourth dipole antenna 322 perpendicular to the x axis of the second unit antenna have similar characteristics to beam formation. For convenience of description, the second dipole antenna 312 and the fourth dipole antenna 322 are referred to as vertical array antennas.

The array antenna 300 needs phase adjustment to a signal (power) for the individual dipole antennas included in each unit antenna. The structure of the power feeding device for this purpose will be described.

FIG. 7 is an example of a structure of a first power feeding device 400 for the horizontal array antenna of FIG. 6. The first power feeding device 400 supplies signals for the first dipole antenna 311 and the third dipole antenna 321. That is, the first power feeding device 400 is responsible for feeding the horizontal array antenna.

The first power supply device 400 may include a first switch 410, a second switch 420, a third switch 430, a first half power divider 440, a second half power divider 450, and a phase converter ( 460). 4 omits a power supply to a signal supply. The first power feeding device 400 controls the signals supplied to the first dipole antenna 311 and the third dipole antenna 321 to have a 0 ° or 90 ° phase difference with each other.

The signal RF _IN transmitted from the power source or the signal source is transmitted to the antenna via either of two paths. (1) The first path is a signal is transmitted to the first dipole antenna 311 via the first switch 410, the first half power divider 440 and the second switch 420 in order. In addition, the signals are sequentially transmitted to the third dipole antenna 321 via the first switch 410, the first half power divider 440, and the third switch 430. (4) The second path is signal transmitted to the first dipole antenna 311 via the first switch 410, the second half power divider 450 and the second switch 420 in order. The signal is sequentially transmitted to the third dipole antenna 321 via the first switch 410, the second half power divider 450, the phase shifter 460, and the third switch 430.

A single pole double throw (SPDT) switch may be used for the first switch 410, the second switch 420, and the third switch 430. Two- way power dividers 240 and 250 distribute the power (signal) supplied. The half power divider can distribute the input power in half each. The phase converter 460 converts the phase of the input signal by 90 degrees.

The first switch 410 includes an input terminal, a first output terminal Q1, and a second output terminal Q3 connected to a power source or a signal source. The second switch 420 includes a first input terminal Q3 connected to the first half power divider 440, a second input terminal Q4 connected to the second half power divider 450, and a first dipole antenna 311. It includes an output terminal connected to. The third switch 430 includes a first input terminal Q5 connected to the first half power divider 440, a second input terminal Q6 receiving the output signal of the phase shifter 460, and a third dipole antenna 321. ) And an output terminal connected to the

When the connection state of the switch is shown in Table 1 below, the phase of the signal transmitted to the first dipole antenna 311 and the third dipole antenna 321 is 0 ° (same) or has a 90 ° phase difference.

Beam pattern type	First dipole antenna phase	Third dipole antenna phase	Switch connection status
Beam pattern 1	0 °	0 °	Q1, Q3, Q5
Beam pattern 2	0 °	90 °	Q2, Q4, Q6

When the first switch 410 is connected to Q1, the second switch 420 is connected to Q3, and the third switch 430 is connected to Q5, the first dipole antenna 311 and the third dipole antenna 321 are connected to the first half power. The signal output from the divider 440 is received without a phase difference. In this case, the array antenna 100 is in a broad side array state, and the first dipole antenna 311 and the third dipole antenna 321 emit a broad side beam. When the first switch 410 is connected to Q2, the second switch 420 is connected to Q4, and the third switch 430 is connected to Q6, the first dipole antenna 311 outputs a signal output from the second half power divider 440. Is received as it is, and the third dipole antenna 321 receives a signal in which the 90 ° phase is converted by the phase converter 460. In this case, the array antenna 100 is in an end-fire array state, and the first dipole antenna 311 and the third dipole antenna 321 radiate an end-fire beam. The first dipole antenna 311 and the third dipole antenna 321 transmit signals having the same phase or 90 degrees out of phase with each other using 410, 220, and 230. For convenience of description, a state in which signals transmitted to the first dipole antenna 311 and the third dipole antenna 321 have the same phase with each other is referred to as a first mode. A state in which signals transmitted to the first dipole antenna 311 and the third dipole antenna 321 have a 90 ° phase difference is referred to as a second mode. The first power feeding device 400 may allow the first mode and the second mode to be repeatedly performed over time. That is, the power feeding device 420 operates in the first mode in the time section 1, operates in the second mode in the second section, operates in the first mode in the third section, and operates in the second mode in the fourth section. It can work. As such, when the first power feeding device 400 repeats the first mode and the second mode, the array antenna 100 may form a beam having a combination of a broad side beam and an end-fire beam.

FIG. 8 is an example of a structure of a second power feeding device 500 for the vertically arranged antenna of FIG. 6. The second power supply device 500 supplies signals for the first dipole antenna 311 and the fourth dipole antenna 324. That is, the second power feeding device 500 is responsible for feeding power to the horizontal array antenna.

The second power supply device 500 may include a first switch 510, a second switch 520, a third switch 530, a first half power divider 540, a second half power divider 550, and a phase converter ( 560). 4 omits a power supply to a signal supply. The second power supply device 500 controls the signals supplied to the second dipole antenna 312 and the fourth dipole antenna 324 to have a 0 ° or 90 ° phase difference with each other.

The signal RF _IN transmitted from the power source or the signal source is transmitted to the antenna via either of two paths. (1) The first path is signal transmitted to the second dipole antenna 312 via the first switch 510, the first half power divider 540 and the second switch 520 in order. In addition, the signals are sequentially transmitted to the fourth dipole antenna 324 via the first switch 510, the first half power divider 540, and the third switch 530. (5) The second path is signal transmitted to the second dipole antenna 312 via the first switch 510, the second half power divider 550 and the second switch 520 in order. The signal is sequentially transmitted to the fourth dipole antenna 324 via the first switch 510, the second half power divider 550, the phase shifter 560, and the third switch 530.

A single pole double throw (SPDT) switch may be used for the first switch 510, the second switch 520, and the third switch 530. Two- way power dividers 240 and 250 distribute the power (signal) supplied. The half power divider can distribute the input power in half each. The phase converter 560 converts the phase of the input signal by 90 degrees.

The first switch 510 includes an input terminal, a first output terminal R1, and a second output terminal R3 connected to a power source or a signal source. The second switch 520 has a first input terminal R3 connected to the first half power divider 540, a second input terminal R4 connected to the second half power divider 550, and a second dipole antenna 312. It includes an output terminal connected to. The third switch 530 has a first input terminal R5 connected to the first half power divider 540, a second input terminal R6 receiving the output signal of the phase shifter 560, and a fourth dipole antenna 324. ) And an output terminal connected to the

When the connection state of the switch is shown in Table 1 below, the phase of the signal transmitted to the second dipole antenna 312 and the fourth dipole antenna 324 is 0 ° (the same) or has a 90 ° phase difference.

Beam pattern type	Second dipole antenna phase	4th dipole antenna phase	Switch connection status
Beam pattern 1	0 °	0 °	R1, R3, R5
Beam pattern 2	0 °	90 °	R2, R4, R6

When the first switch 510 is connected to R1, the second switch 520 is connected to R3, and the third switch 530 is connected to R5, the second dipole antenna 312 and the fourth dipole antenna 324 are connected to the first half power. The signal output from the divider 540 is received without phase difference. In this case, the array antenna 100 is in a broad side array state, and the second dipole antenna 312 and the fourth dipole antenna 324 emit a broad side beam. When the first switch 510 is connected to R2, the second switch 520 is connected to R4, and the third switch 530 is connected to R6, the second dipole antenna 312 outputs a signal output from the second half power divider 540. Is received as it is, and the fourth dipole antenna 324 receives a signal having a 90 ° phase shifted by the phase converter 560. In this case, the array antenna 100 is in an end-fire arrangement state, and the second dipole antenna 312 and the fourth dipole antenna 324 emit an end-fire beam. The second power supply device 500 transmits a signal in which the second dipole antenna 312 and the fourth dipole antenna 324 are in phase with each other or 90 ° out of phase with each other using the switches 510, 220, and 230. For convenience of description, a state in which signals transmitted to the second dipole antenna 312 and the fourth dipole antenna 324 have the same phase with each other is referred to as a third mode. A state in which signals transmitted to the second dipole antenna 312 and the fourth dipole antenna 324 have a 90 ° phase difference is referred to as a fourth mode. The second power feeding device 500 may allow the third mode and the fourth mode to be repeatedly performed over time. That is, the power feeding device 520 operates in the third mode in the time section 1, operates in the fourth mode in the second section, operates in the third mode in the third section, and operates in the fourth mode in the fourth section. It can work. As described above, when the second power supply device 500 repeats the third mode and the fourth mode, the array antenna 100 may form a beam having a combination of a broad side beam and an end-fire beam.

On the other hand, basically, the first feed device 400 and the second feed device 500 may independently control the signal phase for each dipole antenna. Furthermore, the first power feeding device 400 and the second power feeding device 500 may have a predetermined pattern for a section for controlling the type and phase of the antenna to be controlled. For example, in the first section, the first power feeding device 400 may operate in the first mode, and the second power feeding device 500 may operate in the third mode. In the second section following the first section, the first power feeding device 400 may operate in the second mode, and the second power feeding device 500 may operate in the fourth mode. In other words, the first power feeding device 400 and the second power feeding device 500 may have the same interval that gives a 90 ° phase difference as time passes. (2) On the contrary, it is possible to prevent the first power feeding device 400 and the second power feeding device 500 from overlapping sections that provide a 90 ° phase difference with time. That is, in the first section, the first power feeding device 400 may operate in the first mode, and the second power feeding device 500 may operate in the fourth mode. In the second section following the first section, the first power feeding device 400 may operate in the second mode, and the second power feeding device 500 may operate in the third mode. (3) Alternatively, the first power feeding device 400 and the second power feeding device 500 may use different sections as time passes. Basically, the array antenna 300 may have a combined characteristic of a broad side beam and an end-fire beam over time. Therefore, the first power feeding device 400 and the second power feeding device 500 may generate various beam combinations with each other according to the timing of controlling the phase difference.

9 is an example of the antenna radiation pattern of FIG. The array antenna 300 has been experimentally confirmed to form a beam pattern having an elevation angle of 200 ° or more including a hemisphere region through beam combination. The hemisphere region means that the beam pattern is formed in an area corresponding to half of the sphere in the beam pattern. 9A is an example of a radiation pattern for a broad side beam formed by a horizontal array antenna. 9B is an example of a radiation pattern for an end-fire beam formed by a horizontal array antenna. 9C is an example of a radiation pattern for a broad side beam formed by a vertical array antenna. 9B is an example of a radiation pattern for an end-fire beam formed by a vertical array antenna.

Third embodiment

10 is an example of a Y-axis horizontal array antenna device 600. 10 is a schematic example of an antenna structure. 10 is an example of a linear array antenna using a dipole antenna. The array antenna device 600 includes an array antenna 610 and a reflector 620. In FIG. 10, x, y, and z mean a direction of a three-dimensional space.

Array antenna 610 includes a first dipole antenna 611 and a second dipole antenna 612. The first dipole antenna 611 and the second dipole antenna 612 transmit and receive a signal of a predetermined band according to a performance request. For example, the first dipole antenna 611 and the second dipole antenna 612 may process a 5 GHz band signal. The array antenna 610 includes a first dipole antenna 611 and a second dipole antenna 612 arranged in the XY plane. For convenience of description, the plane on which the first dipole antenna 611 and the second dipole antenna 612 are disposed is referred to as a first XY plane. For example, the array antenna 610 may arrange the first dipole antenna 611 and the second dipole antenna 612 on a substrate parallel to the XY plane.

The first dipole antenna 611 and the second dipole antenna 612 are linearly arranged along the Y axis. The centers of the first dipole antenna 611 and the second dipole antenna 612 are arranged along the Y axis. The type in which the unit antennas are arranged along the Y axis is called a Y axis horizontal arrangement. Each of the first dipole antenna 611 and the second dipole antenna 612 is horizontal in the X direction and horizontal (perpendicular to the Y axis). The distance d ₁ between the first dipole antenna 611 and the second dipole antenna 612 is within half wavelength (d ₁ ≦ λ / 2). The length of the first dipole antenna 611 and the second dipole antenna 612 may vary depending on the size of the antenna device, the performance of the target antenna device, and the like.

10 illustrates an example of using two dipole elements, and in some cases, more elements may be used. Even when using N elements, each antenna element is pre-arranged along the Y axis.

The reflector 620 is disposed in an opposite direction of the main beam formed by the antenna. The distance d ₂ between the array antenna 610 and the reflector 620 is greater than 1/4 (1/10) wavelength (d ₂ > lambda / 4). Reflector 620 may also be disposed in the XY plane. The plane in which the reflector 620 is disposed is called a second XY plane. Reflector 620 reduces back lobe gain. Furthermore, the reflector 620 allows the beam of the antenna to have a wide elevation angle. The reflector 620 may be configured in various forms or materials used in a conventional antenna device. For example, the reflector 620 may be made of metal, ceramic or PCB material.

The array antenna 610 may generate both a broad side beam and an end-fire beam. The array antenna 610 combines the broad side beam and the end-fire beam to provide a wide-angle beam pattern. To this end, phase adjustment is necessary for the signal (power) provided to the first dipole antenna 611 and the second dipole antenna 612.

Fourth embodiment

11 is another example of a Y-axis horizontal array antenna device 600. 11 is a schematic example of an antenna structure. 11 is an example of a linear array antenna using a dipole antenna. The array antenna device 600 includes an array antenna 610 and a reflector 620. In FIG. 11, x, y, and z mean a direction of a three-dimensional space. The antenna device 600 of FIG. 11 has a structure different from that of the antenna device 600 of FIG. 10.

Array antenna 610 includes a first dipole antenna 611 and a second dipole antenna 612. The first dipole antenna 611 and the second dipole antenna 612 transmit and receive a signal of a predetermined band according to a performance request. For example, the first dipole antenna 611 and the second dipole antenna 612 may process a 5 GHz band signal. The array antenna 610 includes a first dipole antenna 611 and a second dipole antenna 612 arranged in the XY plane. For convenience of description, the plane on which the first dipole antenna 611 and the second dipole antenna 612 are disposed is referred to as a first XY plane. For example, the array antenna 610 may arrange the first dipole antenna 611 and the second dipole antenna 612 on a substrate parallel to the XY plane.

The first dipole antenna 611 and the second dipole antenna 612 are linearly arranged along the Y axis. The centers of the first dipole antenna 611 and the second dipole antenna 612 are arranged along the Y axis. The first dipole antenna 611 and the second dipole antenna 612 have a Y axis horizontal arrangement. The distance d ₁ between the first dipole antenna 611 and the second dipole antenna 612 is within half wavelength (d ₁ ≦ λ / 2). The length of the first dipole antenna 611 and the second dipole antenna 612 may vary depending on the size of the antenna device, the performance of the target antenna device, and the like.

11 illustrates an example of using two dipole elements, and in some cases, more elements may be used. Even when using N elements, each antenna element is pre-arranged along the Y axis.

The reflector 620 is disposed in the opposite direction of the main beam formed by the array antenna 610 (rear side of the array antenna 610). The distance d ₂ between the array antenna 610 and the reflector 620 is greater than 1/4 wavelength (d ₂ > lambda / 4). Reflector 620 may also be disposed in the XY plane. The plane in which the reflector 620 is disposed is called a second XY plane. Reflector 620 reduces back lobe gain. Furthermore, the reflector 620 allows the beam of the antenna to have a wide elevation angle. The reflector 620 may be configured in various forms or materials used in a conventional antenna device. Reflector 620 includes two dipole structures 621 and 622. That is, the reflector 620 has a structure similar to that of the array antenna 610. The distance d ₃ between the two dipole structures 621 and 622 is within half wavelength (d ₃ ≦ λ / 2). The two dipole structures 621 and 622 may be disposed at the same height as the first dipole antenna 611 and the second dipole antenna 612 in the Y axis, respectively. In some cases, the two dipole structures 621 and 622 may have a different shape, a different standard, or a different placement position from the first dipole antenna 611 and the second dipole antenna 612.

The array antenna 610 may generate both a broad side beam and an end-fire beam. The array antenna 610 combines the broad side beam and the end-fire beam to provide a wide-angle beam pattern. To this end, phase adjustment is necessary for the signal (power) provided to the first dipole antenna 611 and the second dipole antenna 612.

Fifth Embodiment

12 is another example of a Y axis horizontal array antenna device 700. 12 is a schematic example of an antenna structure. 12 is an example of a linear array antenna using a dipole antenna. The array antenna device 700 includes an array antenna 710 and a waveguide 720. In FIG. 11, x, y, and z mean a direction of a three-dimensional space.

The array antenna 710 includes a first dipole antenna 711 and a second dipole antenna 712. The first dipole antenna 711 and the second dipole antenna 712 transmit and receive a signal of a predetermined band according to a performance request. For example, the first dipole antenna 711 and the second dipole antenna 712 may process a 5 GHz band signal. The array antenna 710 includes a first dipole antenna 711 and a second dipole antenna 712 disposed in the XY plane. For convenience of description, the plane on which the first dipole antenna 711 and the second dipole antenna 712 are disposed is referred to as a first XY plane. For example, the array antenna 710 may arrange the first dipole antenna 711 and the second dipole antenna 712 on a substrate parallel to the XY plane.

The first dipole antenna 711 and the second dipole antenna 712 are linearly arranged along the Y axis. The centers of the first dipole antenna 711 and the second dipole antenna 712 are arranged along the Y axis. The first dipole antenna 711 and the second dipole antenna 712 have a Y-axis horizontal arrangement. The distance d ₁ between the first dipole antenna 711 and the second dipole antenna 712 is within half wavelength (d ₁ ≦ λ / 2). The length of the first dipole antenna 711 and the second dipole antenna 712 may vary depending on the size of the antenna device, the performance of the target antenna device, and the like.

12 illustrates an example of using two dipole elements, and in some cases, more elements may be used. Even when using N elements, each antenna element is pre-arranged along the Y axis.

The waveguide 720 is disposed in the direction in which the main beam formed by the array antenna 710 travels (the front side of the array antenna 710). The distance d ₂ between the array antenna 710 and the waveguide 720 is greater than 1/4 wavelength (d ₂ > lambda / 4). Waveguide 720 may also be disposed in the XY plane. The plane in which the waveguide 720 is disposed is called a second XY plane. Waveguide 720 causes the beam of the antenna to have a wide elevation angle. The waveguide 720 may be formed of various forms or materials used in a conventional antenna device. Waveguide 720 may include two dipole structures 721 and 222. The distance d ₃ between the two dipole structures 721 and 722 is within half wavelength (d ₃ ≦ λ / 2). The two dipole structures 721 and 722 may be disposed at the same height as the first dipole antenna 711 and the second dipole antenna 712 in the Y axis, respectively. In some cases, the two dipole structures 721 and 722 may have different shapes, different specifications, or different placement positions from the first dipole antenna 711 and the second dipole antenna 712.

The array antenna 710 may generate both a broad side beam and an end-fire beam. The array antenna 710 combines the broad side beam and the end-fire beam to provide a wide-angle beam pattern. To this end, phase adjustment is necessary for the signal (power) provided to the first dipole antenna 711 and the second dipole antenna 712.

FIG. 13 is an example of a structure of a power feeding device 800 for the antenna of FIGS. 10 to 12. The power feeding device 800 is a device that provides a power signal to the unit antennas of the above-described array antennas 610 and 710. The power feeding device 800 having the same structure may be used for the array antennas 610 and 710.

The power feeding device 800 includes a first switch 810, a half power divider 820, a second switch 830, a third switch 840, and a hybrid coupler 850. 12 omits a power supply to a signal supply. The power feeding device 800 controls the signals supplied to the first dipole antennas 611 and 711 and the second dipole antennas 612 and 712 to have a 0 ° or 90 ° phase difference with each other.

The first switch 810 receives a signal RF _IN transmitted from a power source or a signal source. The first switch 810 transmits an input signal to any one of three output terminals P1, P2, and P3. For example, the first switch 810 may be a single pole three throw (SP3T) switch.

A two-way power divider 820 divides the supplied power (signal) in half. The half power divider 820 receives the signal of the output terminal P2 of the first switch 810 and divides it into two output signals.

The second switch 830 and the third switch 840 each transmit a signal input from any one of two input terminals to the output terminal. For example, the second switch 830 and the third switch 840 may be a single pole double throw (SPDT) switch. The second switch 830 has input terminals P4 and P5. P4 receives a signal transmitted from the output terminal P1 of the first switch. P5 receives one of two output signals of the half power divider 820. The third switch 840 has input terminals P6 and P7. P6 receives the other of the two output signals of the half power divider 820. P7 receives a signal transmitted from the output terminal P3 of the first switch.

Hybrid coupler 850 is a 90 degree hybrid coupler. Hybrid couplers may have various types of structures. For example, the hybrid coupler may be a branch-line coupler. The hybrid coupler 850 branches one input signal into two and causes the two branched signals to have a phase difference of 90 degrees from each other. On the other hand, when the hybrid coupler 850 receives two signals, the phase difference between the two output signals is 0 degrees (no phase difference).

When the connection state of the switch is shown in Table 5 below, a signal transmitted to the first dipole antenna 611 and the second dipole antenna 612 or a signal transmitted to the first dipole antenna 711 and the second dipole antenna 712. The phase of is 0 ° (same) or has a 90 ° phase difference. It may have three beam patterns according to the switch connection state. The three beam patterns are denoted as beam pattern 1, beam pattern 2 and beam pattern 3, respectively.

Beam pattern type	First dipole antenna phase	Second dipole antenna phase	1st switch connection state	2nd switch / 3rd switch connection status
Beam pattern 1	0 °	0 °	P2	P5 / P6
Beam pattern 2	0 °	90 °	P1	P4 / NA
Beam pattern 3	90 °	0 °	P3	NA / P7

Three beam patterns may be formed according to the switch connection state. The power feeding device 800 controls a signal transmitted to the array antenna and outputs any one of three beam patterns. For convenience of description, an operation state where the power supply device 800 generates the beam pattern 1 is called a first mode, and an operation state where the power supply device 800 generates the beam pattern 2 is called a second mode, and an operation state that generates the beam pattern 3 is referred to. In the first mode, the first switch 810 transmits a signal to P2, the second switch 830 receives a signal of P5, and the third switch 840 receives a P6 signal. Receive. The half power divider 820 divides the signal input at P2 into two signals. The hybrid coupler 850 receives two signals distributed by the half power divider 820 via P5 and P6, respectively. The hybrid coupler 850 receives two signals and transmits a signal having a phase difference of 0 degrees to the first dipole antenna 611 or 711 and the second dipole antenna 612 or 712, respectively. In this case, the array antenna 610 is in a broad side array state, and the first dipole antenna 611 or 711 and the second dipole antenna 612 or 712 emit a broad side beam. That is, beam pattern 1 is a broad side beam.

In the second mode, the first switch 810 transmits a signal to P1, and the second switch 830 receives a signal of P4. The hybrid coupler 850 receives one signal via P1 and P4 and outputs a signal having a phase difference of 90 degrees from each other. In Table 5, NA refers to a state in which a signal is not transmitted from the third switch 840. The hybrid coupler 850 transmits a signal having no phase change to the first dipole antenna 611 or 711 and a signal having a phase difference of 90 degrees to the second dipole antenna 612 or 712. In this case, the array antenna 610 is in an end-fire arrangement, and the first dipole antenna 611 or 711 and the second dipole antenna 612 or 712 emit an end-fire beam. That is, beam pattern 2 is an end-fire beam. The end-fire beam output in the second mode is called a first end-fire beam.

In the third mode, the first switch 810 transmits a signal to P3, and the third switch 840 receives a signal of P7. The hybrid coupler 850 receives one signal via P3 and P7 and outputs a signal having a phase difference of 90 degrees from each other. In Table 5, NA refers to a state in which a signal is not transmitted from the second switch 830. The hybrid coupler 850 transmits a signal having a phase difference of 90 degrees to the first dipole antenna 611 or 711, and a signal without phase change to the second dipole antenna 612 or 712. In this case, the array antenna 610 is in an end-fire arrangement, and the first dipole antenna 611 or 711 and the second dipole antenna 612 or 712 emit an end-fire beam. That is, beam pattern 3 is an end-fire beam. The end-fire beam output in the third mode is called a second end-fire beam.

The power feeding device 800 transmits a signal in which the first dipole antenna 611 or 711 and the second dipole antenna 612 or 712 are in phase with each other or 90 ° out of phase with each other using the switches 810, 830, and 840. . The power feeding device 800 may allow the first mode, the second mode, and the third mode to be repeatedly performed over time. (6) For example, the power feeding device 800 may operate in the first mode in the first time interval, operate in the second mode in the second interval, and operate in the third mode in the third interval according to the time sequence. . The power feeding device 800 may control the operation of the first mode, the second mode, and the third mode to be repeated subsequently. (7) Furthermore, the power feeding device 800 may change the order of modes according to time intervals. For example, the power feeding device 800 may include a first section (first mode), a second section (third mode), a third section (second mode), a fourth section (first mode), and a fifth section (second section). Mode, the sixth section (the third mode, etc., different modes are operated according to the time section, the order may be combined in various ways, and each time section may have the same time length or different time length. As such, the power feeding device 800 may repeatedly generate various different beam patterns (broside beam, first end-fire beam, and second end-fire beam) to form a beam having a combination of various beam patterns. have.

FIG. 14 is an example of a radiation pattern of the antenna device of FIG. 10. Fig. 14A is an example of the radiation pattern (beam pattern 1) for the broad side beam. 14B is an example of a radiation pattern (beam pattern 2) for the first end-fire beam. 14C is an example of a radiation pattern (beam pattern 3) for the second end-fire beam. FIG. 14D illustrates an example of an entire beam pattern in which a broad side beam and an end-fire beam are combined in an zy plane (an elevation cut). The antenna device 600 of FIG. 10 may form a beam pattern having a wide elevation angle by combining beams of an array antenna. Table 6 below shows experimental data of beams formed by the antenna device 600 of FIG. 10. It was confirmed experimentally to form a beam pattern having an elevation angle of 200 ° or more.

Item		Beam pattern 1	Beam pattern 2	Beam pattern 3
elevation	100.3	101.6	101.4
Max gain (dBi)	6.23	5.82	5.82
Gain (θ> 90) (dBi)		> 2.7	> 2.7

Table 6 shows data of elevation angles and gains for beams formed by the antenna device 600 of FIG. 10. In Table 6, θ means the angle to form a beam. It can be seen that an effective gain is obtained even at an angle of more than 90 degrees.

FIG. 15 is an example of a radiation pattern of the antenna device of FIG. 11. 15A is an example of a radiation pattern (beam pattern 1) for a broad side beam. 15B is an example of a radiation pattern (beam pattern 2) for the first end-fire beam. 15C is an example of a radiation pattern (beam pattern 3) for the second end-fire beam. FIG. 15D illustrates an example of an entire beam pattern in which a broad side beam and an end-fire beam are combined in an zy plane (an elevation cut). The antenna device 600 of FIG. 11 may form a beam pattern having a wide elevation angle by combining beams of an array antenna. Table 7 below is experimental data on beams formed by the antenna device 600 of FIG. 11. It was confirmed experimentally to form a beam pattern having an elevation angle of 200 ° or more.

Item		Beam pattern 1	Beam pattern 2	Beam pattern 3
elevation	126	101.8	101.8
Max gain (dBi)	5	6.36	6.36
Gain (θ> 90) (dBi)		> 4.2	> 4.2

Table 7 is data on elevation and gain for the beam formed by the antenna device 700. In Table 7, θ means the angle of forming the beam. It can be seen that an effective gain is obtained even at an angle of more than 90 degrees.

16 is an example of the antenna radiation pattern of FIG. Fig. 16A is an example of the radiation pattern (beam pattern 1) for the broad side beam. Fig. 16B is an example of the radiation pattern (beam pattern 2) for the first end-fire beam. 16C is an example of a radiation pattern (beam pattern 3) for the second end-fire beam. FIG. 16D illustrates an example of an entire beam pattern in which a broad side beam and an end-fire beam are combined in an zy plane (an elevation cut). The antenna device 700 of FIG. 12 may form a beam pattern having a wide elevation angle by combining beams of an array antenna. Table 8 below shows experimental data of beams formed by the antenna device 700 of FIG. 12. It was confirmed experimentally to form a beam pattern having an elevation angle of 200 ° or more.

Item		Beam pattern 1	Beam pattern 2	Beam pattern 3
elevation	104	142	142
Max gain (dBi)	4.3	5.73	5.73
Gain (θ> 90) (dBi)		> 4.8	> 4.8

Table 8 shows data of elevation angle and gain for the beam formed by the antenna device 700 of FIG. 12. In Table 7, θ means the angle of forming the beam. It can be seen that an effective gain is obtained even at an angle of more than 90 degrees.

Sixth embodiment

17 is another example of the Y-axis horizontal array antenna device 900. 17 is a schematic example of an antenna structure. Antenna device 900 includes two array antennas and reflectors for each array antenna. 17 is an example of a linear array antenna using a dipole antenna.

The array antenna device 900 includes a first array antenna 910, a first reflector 920, a second array antenna 930, and a second reflector 940. In FIG. 17, x, y and z mean a direction of three-dimensional space. In FIG. 17, the first array antenna 910 and the first reflector 920 are similar to the antenna device 700 of FIG. 11. Although FIG. 17 illustrates a form in which the reflector includes a dipole structure, at least one of the reflectors 920 and 940 of the antenna device 900 may be a structure having no dipole (the reflector 620 of FIG. 10).

The first array antenna 910 includes a first dipole antenna 911 and a second dipole antenna 912. The first dipole antenna 911 and the second dipole antenna 912 transmit and receive signals of a predetermined band according to a performance request. For example, the first dipole antenna 911 and the second dipole antenna 912 may process a 5 GHz band signal. The array antenna 910 includes a first dipole antenna 911 and a second dipole antenna 912 disposed in the XY plane. For convenience of description, the plane on which the first dipole antenna 911 and the second dipole antenna 912 are disposed is referred to as a first XY plane. For example, the array antenna 910 may arrange the first dipole antenna 911 and the second dipole antenna 912 on a substrate parallel to the XY plane.

The first dipole antenna 911 and the second dipole antenna 912 are linearly arranged along the Y axis. The centers of the first dipole antenna 911 and the second dipole antenna 912 are arranged along the Y axis. The first dipole antenna 911 and the second dipole antenna 912 have a Y axis horizontal arrangement. The distance d ₁ between the first dipole antenna 911 and the second dipole antenna 912 is within half wavelength (d ₁ ≦ λ / 2). The lengths of the first dipole antenna 911 and the second dipole antenna 912 may vary depending on the size of the antenna device, the performance of the target antenna device, and the like.

17 illustrates an example of using two dipole elements, and in some cases, more elements may be used. Even when using N elements, each antenna element is pre-arranged along the Y axis.

The first reflector 920 is disposed in an opposite direction of the main beam formed by the antenna. The distance d ₂ between the first array antenna 910 and the first reflector 920 is greater than 1/4 wavelength (d ₂ > lambda / 4). The first reflector 920 may also be disposed in the XY plane. The plane on which the first reflector 720 is disposed is indicated as a second XY plane. The first reflector 920 reduces the back lobe gain. Further, the first reflector 920 allows the beam of the antenna to have a wide elevation angle. The first reflector 920 may be formed of various forms or materials used in a conventional antenna device. The first reflector 920 includes two dipole structures 921 and 922. The distance d ₃ between the two dipole structures 921 and 922 is within half wavelength (d ₃ ≦ λ / 2). The two dipole structures 921 and 922 may be disposed at the same height as the first dipole antenna 911 and the second dipole antenna 912 in the Y axis, respectively. In some cases, the two dipole structures 921 and 922 may have different shapes, different specifications, or different placement positions from the first dipole antenna 911 and the second dipole antenna 912.

Antenna device 900 additionally includes a second array antenna 930 and a second reflector 940. The second array antenna 930 is different in structure from the first array antenna 910.

The second array antenna 930 includes a third dipole antenna 931 and a fourth dipole antenna 932. The third dipole antenna 931 and the fourth dipole antenna 932 transmit and receive signals of a predetermined band according to a performance request. For example, the third dipole antenna 931 and the fourth dipole antenna 932 may process a 5 GHz band signal. The array antenna 910 includes a third dipole antenna 931 and a fourth dipole antenna 932 arranged in the XY plane. The third dipole antenna 931 and the fourth dipole antenna 932 may be disposed in the first XY plane. The array antenna 910 may arrange the third dipole antenna 931 and the fourth dipole antenna 932 on a substrate parallel to the XY plane.

The third dipole antenna 931 and the fourth dipole antenna 932 are linearly arranged along the X axis. The centers of the third dipole antenna 931 and the fourth dipole antenna 932 are arranged along the X axis. The third dipole antenna 931 and the fourth dipole antenna 932 have an X axis horizontal arrangement. The distance d ₄ between the third dipole antenna 931 and the fourth dipole antenna 932 is within half wavelength (d ₄ ≦ λ / 2). The lengths of the third dipole antenna 931 and the fourth dipole antenna 932 may vary depending on the size of the antenna device, the performance of the target antenna device, and the like. 15 illustrates an example of using two dipole elements, and in some cases, more elements may be used. Even when using N elements, each antenna element is pre-arranged along the Y axis.

The second reflector 940 is disposed in an opposite direction of the main beam formed by the antenna. The distance d ₅ between the second array antenna 930 and the second reflector 940 is greater than 1/4 wavelength (d ₅ > lambda / 4). The second reflector 940 may also be disposed in the XY plane. The second reflector 940 may be disposed in the second XY plane. The second reflector 940 reduces back lobe gain. The second reflector 940 may be formed of various forms or materials used in a conventional antenna device. The second reflector 940 includes two dipole structures 941 and 942. The distance d ₆ between the two dipole structures 941 and 942 is within half wavelength (d ₃ ≦ λ / 2). The two dipole structures 941 and 942 may be disposed at the same height as the third dipole antenna 931 and the fourth dipole antenna 932 on the X axis basis, respectively. In some cases, the two dipole structures 941 and 942 may have a different shape, a different specification, or a different placement position from the third dipole antenna 931 and the fourth dipole antenna 932.

The first array antenna 910 and the second array antenna 930 may generate both a broad side beam and an end-fire beam, respectively. The first array antenna 910 and the second array antenna 930 combine a broad side beam and an end-fire beam to provide a wide-angle beam pattern. To this end, phase adjustment is required for signals (power) provided to each of the dipole antennas 911 and 912 of the first array antenna 910 and the dipole antennas 931 and 932 of the second array antenna 930.

Meanwhile, the first array antenna 910 and the second array antenna 930 may be arranged at regular intervals. The distance d ₇ between the center of the first array antenna 910 and the center of the second array antenna 930 may be a half wavelength distance (d ₇ = λ / 2) of the center frequency. In some cases, a distance between the first array antenna 910 and the second array antenna 930 may vary according to a beam pattern to be formed using the first array antenna 910 and the second array antenna 930. .

18 is an example of a structure of a power feeding device for the antenna of FIG. 18 omits the power source to the signal source.

18A is an example of the structure of the first power feeding device 1000 for the first array antenna 910. The first power supply device 1000 includes a first switch 1010, a half power divider 1020, a second switch 1030, a third switch 1040, and a hybrid coupler 1050. The first power feeding device 1000 controls the signals supplied to the first dipole antenna 911 and the second dipole antenna 912 to have a 0 ° or 90 ° phase difference with each other.

The first switch 1010 receives a signal RF _IN1 transmitted from a power source or a signal source. The first switch 1010 transfers an input signal to any one of three output terminals Q1, Q2, and Q3. For example, the first switch 1010 may be a single pole three throw (SP3T) switch.

A two-way power divider 1020 divides the supplied power (signal) in half. The half power divider 1020 receives the signal of the output terminal Q2 of the first switch 1010 and divides it into two output signals.

The second switch 1030 and the third switch 1040 respectively transmit signals input from any one of two input terminals to the output terminal. For example, the second switch 1030 and the third switch 1040 may be a single pole double throw (SPDT) switch. The second switch 1030 has input terminals Q4 and Q5. Q4 receives a signal transmitted from the output terminal Q1 of the first switch 1010. Q5 receives one of two output signals of the half power divider 1020. The third switch 1040 has input terminals Q6 and Q7. Q6 receives the other of the two output signals of the half power divider 1020. Q7 receives a signal transmitted from the output terminal Q3 of the first switch 1010.

Hybrid coupler 1050 is a 90 degree hybrid coupler. Hybrid couplers may have various types of structures. For example, the hybrid coupler may be a branch-line coupler. The hybrid coupler 1050 branches one input signal into two and causes the two branched signals to have a phase difference of 90 degrees from each other. On the other hand, when the hybrid coupler 1050 receives two signals, the phase difference between the two output signals is 0 degrees (no phase difference).

When the connection state of the switch is as shown in Table 9 below, the phase of the signal transmitted to the first dipole antenna 911 and the second dipole antenna 912 is 0 ° (the same) or has a 90 ° phase difference. It may have three beam patterns according to the switch connection state. The three beam patterns are denoted as beam pattern 1, beam pattern 2 and beam pattern 3, respectively.

Beam pattern type	First dipole antenna phase	Second dipole antenna phase	1st switch connection state	2nd switch / 3rd switch connection status
Beam pattern 1	0 °	0 °	Q2	Q5 / Q6
Beam pattern 2	0 °	90 °	Q1	Q4 / NA
Beam pattern 3	90 °	0 °	Q3	NA / Q7

Three beam patterns may be formed according to the switch connection state. The first power supply device 1000 outputs any one of three beam patterns by controlling a signal transmitted to the array antenna. For convenience of description, an operation state in which the first power supply device 1000 generates the beam pattern 1 is called a first mode, and an operation state in which the beam pattern 2 is generated is called a second mode, and an operation of generating the beam pattern 3 is performed. The state is called the third mode. In the first mode, the first switch 1010 transmits a signal to Q2, the second switch 1030 receives a signal of Q5, and the third switch 1040 receives a Q6 signal. The half power divider 1020 divides the signal input at Q2 into two signals. The hybrid coupler 1050 receives two signals distributed by the half power divider 1020 via Q5 and Q6, respectively. The hybrid coupler 1050 receives two signals and transmits signals having a phase difference of 0 degrees to the first dipole antenna 911 and the second dipole antenna 912, respectively. In this case, the array antenna 910 is in a broad side array state, and the first dipole antenna 911 and the second dipole antenna 912 emit a broad side beam. That is, beam pattern 1 is a broad side beam. The broad side beam output in the first mode is called a first broad side beam.

In the second mode, the first switch 1010 transmits a signal to Q1 and the second switch 1030 receives a signal of Q4. The hybrid coupler 1050 receives one signal via Q1 and Q4 and outputs a signal having a phase difference of 90 degrees from each other. In Table 8, NA refers to a state in which a signal is not transmitted from the third switch 1040. The hybrid coupler 1050 transmits a signal having no phase change to the first dipole antenna 911 and a signal having a phase difference of 90 degrees to the second dipole antenna 912. In this case, the first array antenna 910 is in an end-fire arrangement, and the first dipole antenna 911 and the second dipole antenna 912 emit an end-fire beam. That is, beam pattern 2 is an end-fire beam. The end-fire beam output in the second mode is called a first end-fire beam.

In the third mode, the first switch 1010 transmits a signal to Q3 and the third switch 1040 receives a signal of Q7. The hybrid coupler 1050 receives one signal via Q3 and Q7, and outputs a signal having a phase difference of 90 degrees from each other. In Table 5, NA refers to a state in which a signal is not transmitted from the second switch 1030. The hybrid coupler 1050 transmits a signal having a phase difference of 90 degrees to the first dipole antenna 911, and a signal having no phase change to the second dipole antenna 912. In this case, the first array antenna 910 is in an end-fire arrangement, and the first dipole antenna 911 and the second dipole antenna 912 emit an end-fire beam. That is, beam pattern 3 is an end-fire beam. The end-fire beam output in the third mode is called a second end-fire beam.

The first power feeding device 1000 transmits a signal in which the first dipole antenna 911 and the second dipole antenna 912 are in phase with each other or 90 ° out of phase with each other using the switches 1010, 1030, and 1040. The first power feeding device 1000 may perform the first mode, the second mode, and the third mode repeatedly according to time. (1) For example, the first power feeding device 1000 may operate in the first mode in the first time section, operate in the second mode in the second section, and operate in the third mode in the third section in chronological order. Can be. The first power feeding device 1000 may control the operation of the first mode, the second mode, and the third mode to be repeated subsequently. (2) Furthermore, the first power feeding device 1000 may change the order of the modes according to time intervals. For example, the first power feeding device 1000 may include a first section (first mode), a second section (third mode), a third section (second mode), a fourth section (first mode), and a fifth section ( Different modes may be operated according to time intervals, such as a second mode and a sixth interval (third mode, etc.), and the order may be variously combined, and each time interval may have the same time length or a different time length. As such, the first power supply device 1000 repeatedly generates various different beam patterns (a first broside beam, a first end-fire beam, and a second end-fire beam) to combine various beam patterns. Can form a beam.

18B is an example of the structure of the second power feeding device 1100 for the second array antenna 930. The second power feeding device 1100 basically has a structure similar to that of the first power feeding device 1000.

The second power supply device 1100 includes a first switch 1110, a half power divider 1120, a second switch 1130, a third switch 1140, and a hybrid coupler 1150. The second power supply device 1100 controls the signals supplied to the third dipole antenna 931 and the fourth dipole antenna 932 to have a 0 ° or 90 ° phase difference with each other.

The first switch 1110 receives a signal RF _IN2 transmitted from a power source or a signal source. The first switch 1110 transfers an input signal to any one of three output terminals R1, R2, and R3. For example, the first switch 1110 may be a single pole three throw (SP3T) switch.

A two-way power divider 1120 divides the supplied power (signal) in half. The half power divider 1120 receives the signal of the output terminal R2 of the first switch 1110 and divides it into two output signals.

The second switch 1130 and the third switch 1140 respectively transmit signals input from any one of two input terminals to the output terminal. For example, the second switch 1130 and the third switch 1140 may be a single pole double throw (SPDT) switch. The second switch 1130 has input terminals R4 and R5. R4 receives a signal transmitted from the output terminal R1 of the first switch 1110. R5 receives one of two output signals of the half power divider 1120. The third switch 1140 has input terminals R6 and R7. R6 receives the other of the two output signals of the half power divider 1120. R7 receives a signal transmitted from the output terminal R3 of the first switch 1110.

Hybrid coupler 1150 is a 90 degree hybrid coupler. Hybrid couplers may have various types of structures. For example, the hybrid coupler may be a branch-line coupler. The hybrid coupler 1150 branches one input signal into two and causes the two branched signals to have a phase difference of 90 degrees from each other. On the other hand, when the hybrid coupler 1150 receives two signals, the phase difference between the two output signals is 0 degrees (no phase difference).

When the connection state of the switch is as shown in Table 10 below, the phase of the signal transmitted to the third dipole antenna 931 and the fourth dipole antenna 932 is 0 ° (same) or has a 90 ° phase difference. It may have three beam patterns according to the switch connection state. The three beam patterns are denoted as beam pattern 4, beam pattern 5 and beam pattern 6, respectively.

Beam pattern type	First dipole antenna phase	Second dipole antenna phase	1st switch connection state	2nd switch / 3rd switch connection status
Beam pattern 4	0 °	0 °	R2	R5 / R6
Beam pattern 5	0 °	90 °	R1	R4 / NA
Beam pattern 6	90 °	0 °	R3	NA / R7

Three beam patterns may be formed according to the switch connection state. The second power supply device 1100 controls any signal transmitted to the array antenna and outputs one of three beam patterns. For convenience of explanation, an operation state in which the second power supply device 1100 generates the beam pattern 4 is called a fourth mode, and an operation state in which the beam pattern 5 is generated is called a fifth mode, and the beam pattern 6 is generated. The state is called a sixth mode. In the fourth mode, the first switch 1110 transmits a signal to R2, the second switch 1130 receives a signal of R5, and the third switch 1140 receives an R6 signal. The half power divider 1120 divides the signal input at R2 into two signals. The hybrid coupler 1150 receives two signals distributed by the half power divider 1120 via R5 and R6, respectively. The hybrid coupler 1150 receives two signals and transmits signals having a phase difference of 0 degrees to the third dipole antenna 931 and the fourth dipole antenna 932, respectively. In this case, the second array antenna 930 is in a broad side array state, and the first dipole antenna 931 and the second dipole antenna 932 emit broad side beams. That is, beam pattern 4 is a broad side beam. The broad side beam output in the fourth mode is referred to as a second broad side beam. In the fifth mode, the first switch 1110 transmits a signal to R1 and the second switch 1130 receives a signal of R4. . The hybrid coupler 1150 receives one signal via R1 and R4 and outputs a signal having a phase difference of 90 degrees. In Table 9, NA refers to a state in which a signal is not transmitted from the third switch 1140. The hybrid coupler 1150 transmits a signal having no phase change to the third dipole antenna 931 and a signal having a phase difference of 90 degrees to the fourth dipole antenna 932. In this case, the second array antenna 930 is in an end-fire arrangement state, and the third dipole antenna 931 and the fourth dipole antenna 932 radiate an end-fire beam. That is, beam pattern 5 is an end-fire beam. The end-fire beam output in the fifth mode is called a third end-fire beam.

In the sixth mode, the first switch 1110 transmits a signal to R3 and the third switch 1140 receives a signal of R7. The hybrid coupler 1150 receives one signal via R3 and R7 and outputs a signal having a phase difference of 90 degrees from each other. In Table 9, NA refers to a state in which a signal is not transmitted from the second switch 1130. The hybrid coupler 1150 transmits a signal having a phase difference of 90 degrees to the third dipole antenna 931 and a signal without phase change to the fourth dipole antenna 932. In this case, the second array antenna 930 is in an end-fire arrangement state, and the third dipole antenna 931 and the fourth dipole antenna 932 radiate an end-fire beam. That is, beam pattern 6 is an end-fire beam. The end-fire beam output in the sixth mode is called a fourth end-fire beam.

The second power supply device 1100 transmits a signal in which the third dipole antenna 931 and the fourth dipole antenna 932 are in phase with each other or 90 ° out of phase with each other using the switches 1110, 1130, and 1140. The second power feeding device 1100 may perform the fourth mode, the fifth mode, and the sixth mode repeatedly according to time. (1) For example, the second power supply device 1100 may operate in the fourth mode in the first time interval, operate in the fifth mode in the second interval, and operate in the sixth mode in the third interval according to the time sequence. Can be. The second power supply device 1100 may subsequently control the operations of the fourth, fifth, and sixth modes to be repeated continuously. (2) Furthermore, the second power feeding device 1100 may change the order of modes according to time intervals. For example, the second power supply device 1100 may include a first section (fourth mode), a second section (sixth mode), a third section (fiveth mode), a fourth section (fourth mode), and a fifth section ( Different modes may be operated according to time intervals, such as a fifth mode and a sixth interval (sixth mode, etc.), and the order may be variously combined, and each time interval may have the same time length or a different time length. As such, the second power supply device 1100 repeatedly generates various different beam patterns (a second broside beam, a third end-fire beam, and a fourth end-fire beam) to combine various beam patterns. Can form a beam.

The first power feeding device 1000 and the second power feeding device 1100 may operate independently of each other. Furthermore, the first power feeding device 1000 and the second power feeding device 1100 may generate a beam having a predetermined pattern according to a predetermined setting. The first power feeding device 1000 and the second power feeding device 1100 may cause the first array antenna 910 and the second array antenna 930 to emit the same kind of beam pattern in the same time interval. Furthermore, the first power feeding device 1000 and the second power feeding device 1100 may cause the first array antenna 910 and the second array antenna 930 to emit different types of beam patterns in the same time interval. A specific type of beam may be generated by combining various beam patterns (beam patterns 1 to beam pattern 6) through control of the first power feeding device 1000 and the second power feeding device 1100.

19 is an example of the antenna radiation pattern of FIG. 19A is an example of a radiation pattern (beam pattern 1) for the first broad side beam. 19B is an example of a radiation pattern (beam pattern 2) for the first end-fire beam. 19C is an example of a radiation pattern (beam pattern 3) for the second end-fire beam. 19D is an example of a radiation pattern (beam pattern 4) for the second broad side beam. 19E is an example of a radiation pattern (beam pattern 5) for the third end-fire beam. 19F is an example of a radiation pattern (beam pattern 6) for the fourth end-fire beam.

20 is an example illustrating a combined form of a radiation pattern formed by the antenna device of FIG. 17. FIG. 20 shows an example of an entire beam pattern in which a broad side beam and an end-fire beam are combined in a zy plane (an elevation cut). 20 (A) shows an example in which the angle of elevation is cut into a cross section of 90 degrees, and FIG. 20 (B) shows an example of an angle of cutting elevation angles in a cross section of 180 degrees. The antenna device 900 may form a beam pattern having a wide elevation angle by combining beams of the array antennas.

Table 51 below shows experimental data about beams formed by the antenna device 900.

Item		Beam pattern 1	Beam pattern 2	Beam pattern 3
elevation	126	101.8	101.8
Max gain (dBi)	5	6.36	6.36
Gain (θ> 90) (dBi)		> 4.2	> 4.2
Item	Beam pattern 4	Beam pattern 5	Beam pattern 6
elevation	126	101.8	101.8
Max gain (dBi)	5	6.36	6.36
Gain (θ> 90) (dBi)		> 4.2	> 4.2

Table 11 shows data of elevation angles and gains for beams formed by the antenna device 900. In Table 11, θ means the angle to form a beam. It can be seen that an effective gain is obtained even at an angle of more than 90 degrees. It was experimentally confirmed that beam combinations having elevation angles of 200 ° or more including the hemisphere region were formed through beam combinations of array antennas.

In addition, the method of generating a radiation pattern of the array antenna or the method of feeding the array antenna as described above may be implemented as a program (or an application) including an executable algorithm that may be executed in a computer. The program may be stored and provided in a non-transitory computer readable medium.

A non-transitory readable medium refers to a medium that stores data semi-permanently and is read by a device, not a medium that stores data for a short time such as a register, a cache, or a memory. Specifically, the various applications or programs described above may be stored and provided in a non-transitory readable medium such as a CD, a DVD, a hard disk, a Blu-ray disk, a USB, a memory card, a ROM, or the like.

The embodiments and the drawings attached to this specification are merely to clearly show a part of the technical idea included in the above-described technology, and those skilled in the art can easily make it within the scope of the technical idea included in the above-described technology and drawings. It will be apparent that both the inferred modifications and the specific embodiments are included in the scope of the above-described technology.

Claims (24)

1. A first antenna emitting a first beam;

   A second antenna emitting a second beam; And

   A power supply providing a first mode in which there is no phase difference between the signal transmitted to the first antenna and the second antenna and a second mode in which the phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees Including devices,

   The power feeding device controls the first mode and the second mode to be repeatedly performed, and the first antenna and the second antenna are horizontally disposed on a z-axis and have a wide elevation angle having an interval within a half wavelength of each other. Array antenna device.
2. The method of claim 1,

   And the first antenna and the second antenna in the first mode have a wide elevation angle in a broadside array state.
3. The method of claim 1,

   And the first antenna and the second antenna in the second mode have a wide elevation angle in an end-fire array state.
4. The method of claim 1,

   The feeding device is

   A first switch including an input terminal connected to the signal source, a first output terminal and a second output terminal;

   A first half power divider connected to the first output terminal and distributing power in half;

   A second half power divider connected to the second output terminal and distributing power in half;

   A second switch including a first input terminal connected to the first half power divider, a second input terminal connected to the second half power divider, and an output terminal connected to the first antenna;

   A phase shifter for shifting the phase of the output signal of the second half power divider by 90 degrees; And

   Has a wide elevation angle including a second switch including a first input terminal connected to the first half power divider, a second input terminal receiving the output signal of the phase converter and an output terminal connected to the second antenna Array antenna device.
5. The method of claim 1,

   The first beam and the second beam form a broad side beam and an end-fire beam while the first mode and the second mode are repeatedly performed, and the broad side beam and the end-fire beam are combined Array antenna device having a wide elevation angle to form a beam.
6. A first antenna emitting a first beam;

   A second antenna that emits a second beam and is perpendicular to the first antenna;

   A third antenna that emits a third beam and is parallel to the first antenna;

   A fourth antenna perpendicular to the third antenna while radiating a fourth beam;

   Providing a first mode in which there is no phase difference between the signal transmitted to the first antenna and the third antenna and a second mode in which the phase difference between the signal transmitted to the first antenna and the third antenna is 90 degrees. 1 feeding device; And

   Providing a third mode in which there is no phase difference between the signal transmitted to the second antenna and the fourth antenna and a fourth mode in which the phase difference between the signal transmitted to the second antenna and the fourth antenna is 90 degrees. Including two feeders,

   The power feeding device controls the first mode and the second mode to be repeatedly performed, and the third mode and the fourth mode are repeatedly performed.

   And the first antenna and the third antenna are horizontally disposed on a z-axis and have a wide elevation angle having a distance within half-wavelength from each other.
7. The method of claim 6,

   In the first mode, the first antenna and the third antenna are in a broadside array, and in the second mode, the first antenna and the third antenna are in an end-fire array. Array antenna device having a wide elevation angle.
8. The method of claim 6,

   In the third mode, the second antenna and the fourth antenna are in a broadside array state, and in the fourth mode, the second antenna and the fourth antenna are in an end-fire array. Array antenna device having a wide elevation angle.
9. The method of claim 6,

   The first power feeding device

   A first switch including an input terminal connected to the signal source, a first output terminal and a second output terminal;

   A first half power divider connected to the first output terminal of the first switch and distributing power in half;

   A second half power divider connected to the second output terminal of the first switch and distributing power in half;

   A second switch including a first input terminal connected to the first half power divider, a second input terminal connected to the second half power divider, and an output terminal connected to the first antenna;

   A phase shifter for shifting the phase of the output signal of the second half power divider by 90 degrees; And

   Has a wide elevation angle including a second switch including a first input terminal connected to the first half power divider, a second input terminal receiving the output signal of the phase converter, and an output terminal connected to the third antenna Array antenna device.
10. The method of claim 6,

    The second power supply device

    A first switch including an input terminal connected to the signal source, a first output terminal and a second output terminal;

    A first half power divider connected to the first output terminal of the first switch and distributing power in half;

    A second half power divider connected to the second output terminal of the first switch and distributing power in half;

    A second switch including a first input terminal connected to the first half power divider, a second input terminal connected to the second half power divider, and an output terminal connected to the second antenna;

    A phase shifter for shifting the phase of the output signal of the second half power divider by 90 degrees; And

    A wide elevation angle including a second switch including a first input terminal connected to the first half power divider, a second input terminal receiving an output signal of the phase converter, and an output terminal connected to the fourth antenna Array antenna device.
11. A first antenna emitting a first beam;

    A second antenna linearly disposed at half-wavelength intervals in the Y-axis direction from the first antenna in a first XY plane in which the first antenna is disposed, and radiating a second beam;

    A reflector disposed in a second XY plane having a spacing greater than a quarter wavelength from the first XY plane; And

    A first mode in which there is no phase difference between the signal transmitted to the first antenna and the second antenna, a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees and transmitted to the second antenna A second mode in which a phase difference occurs in a signal to be transmitted and a third mode in which a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees and the phase difference occurs to a signal transmitted to the first antenna Including a feeding device,

    And the power feeding device has a wide elevation angle to control the first mode, the second mode, and the third mode to be repeatedly performed.
12. The method of claim 11,

    And the first antenna and the second antenna have a wide elevation angle in a broadside array state in the first mode.
13. The method of claim 11,

    In the second mode, the first antenna and the second antenna are in a first end-fire array state, and in the third mode, the first antenna and the second antenna are second end-fire. A Y-axis horizontal array antenna device having a wide elevation angle in an array state.
14. The method of claim 11,

    The first and second beams Y have a wide elevation angle forming multiple beams in which the broad side beam and the end-fire beam are combined while the first mode, the second mode, and the third mode are repeatedly performed. Axial horizontal array antenna device.
15. The method of claim 11,

    The feeding device is

    A first switch receiving a signal from a signal source and outputting the signal to any one of a first output terminal, a second output terminal, and a third output terminal;

    A half power divider configured to receive a signal from the second output terminal and divide the signal into a first divided signal and a second divided signal;

    A second switch configured to receive and output any one of the signal of the first output terminal and the first distribution signal;

    A third switch configured to receive and output any one of the signal of the third output terminal and the second distribution signal; And

    A wide elevation angle including a hybrid coupler which receives a signal output from the second switch and a signal output from the third switch and transmits two output signals having a 90 degree phase difference to the first antenna and the second antenna, respectively Y-axis horizontal array antenna device having a.
16. A first array antenna including a first antenna and a second antenna linearly disposed at intervals within half-wavelength along the Y-axis direction in the first XY plane;

    A first reflector disposed parallel to the first XY plane at a separation distance greater than a quarter wavelength in the Z-axis direction from the first array antenna;

    A second array antenna including a third antenna and a third antenna linearly disposed at intervals within half-wavelength along the X-axis direction in the first XY plane;

    A second reflector disposed parallel to the first XY plane at a separation distance greater than a quarter wavelength from the second array antenna in a Z-axis direction;

    A first feeding device configured to control a section in which a phase difference between a signal transmitted to the first antenna and the second antenna is 0 degrees and a section having 90 degrees is repeated as time passes; And

    Y-axis horizontal arrangement having a wide elevation angle including a second feeding device that controls a section having a phase difference of 0 degrees and a section of 90 degrees to be repeated between signals transmitted to the third and fourth antennas over time Antenna device.
17. The method of claim 16,

    When the phase difference between the signals transmitted to the first antenna and the second antenna is 0 degrees, the first antenna and the second antenna are in a broadside array state.

    When the phase difference between the signals transmitted to the first antenna and the second antenna is 90 degrees, the first antenna and the second antenna are Y-axis horizontal arrays having a wide elevation angle with an end-fire array state. Antenna device.
18. The method of claim 16,

    When the phase difference between the signals transmitted to the third antenna and the fourth antenna is 0 degrees, the third antenna and the fourth antenna are in a broadside array state.

    When the phase difference between the signals transmitted to the third antenna and the fourth antenna is 90 degrees, the third antenna and the fourth antenna have a wide Y-axis horizontal array having an end-fire array state. Antenna device.
19. The method of claim 16,

    Y-axis horizontal array antenna apparatus having a wide elevation angle where the beams emitted by the first antenna, the second antenna, the third antenna, and the fourth antenna form a multiple beam combining a broad side beam and an end-fire beam .
20. The method of claim 16,

    The first power feeding device

    A first switch receiving a signal from a signal source and outputting the signal to any one of a first output terminal, a second output terminal, and a third output terminal;

    A half power divider configured to receive a signal from the second output terminal and divide the signal into a first divided signal and a second divided signal;

    A second switch configured to receive and output any one of the signal of the first output terminal and the first distribution signal;

    A third switch configured to receive and output any one of the signal of the third output terminal and the second distribution signal; And

    A wide elevation angle including a hybrid coupler which receives a signal output from the second switch and a signal output from the third switch and transmits two output signals having a 90 degree phase difference to the first antenna and the second antenna, respectively Y-axis horizontal array antenna device having a.
21. The method of claim 16,

    The second power supply device

    A first switch receiving a signal from a signal source and outputting the signal to any one of a first output terminal, a second output terminal, and a third output terminal;

    A half power divider configured to receive a signal from the second output terminal and divide the signal into a first divided signal and a second divided signal;

    A second switch configured to receive and output any one of the signal of the first output terminal and the first distribution signal;

    A third switch configured to receive and output any one of the signal of the third output terminal and the second distribution signal; And

    A wide elevation angle including a hybrid coupler which receives a signal output from the second switch and a signal output from the third switch and transmits two output signals having a 90 degree phase difference to the third antenna and the third antenna, respectively Y-axis horizontal array antenna device having a.
22. A first antenna emitting a first beam;

    A second antenna linearly disposed at half-wavelength intervals in the Y-axis direction from the first antenna in a first XY plane in which the first antenna is disposed, and radiating a second beam;

    A waveguide disposed in a second XY plane having a spacing greater than a quarter wavelength from the first XY plane; And

    A first mode in which there is no phase difference between the signal transmitted to the first antenna and the second antenna, a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees and transmitted to the second antenna A second mode in which a phase difference occurs in a signal to be transmitted and a third mode in which a phase difference between the signal transmitted to the first antenna and the second antenna is 90 degrees and the phase difference occurs to a signal transmitted to the first antenna Including a feeding device,

    The waveguide is disposed in front of the first antenna and the second antenna, and the power supply device has a wide Y-axis horizontal having a wide elevation angle for repeatedly performing the first mode, the second mode, and the third mode. Array antenna device.
23. The method of claim 22,

    In the first mode, the first antenna and the second antenna are in a broadside array, and in the second mode, the first antenna and the second antenna are in a first end-fire array. and a wide-angle elevation angle in the third mode, wherein the first antenna and the second antenna are in a second end-fire array.
24. The method of claim 22,

    The feeding device is

    A first switch receiving a signal from a signal source and outputting the signal to any one of a first output terminal, a second output terminal, and a third output terminal;

    A half power divider configured to receive a signal from the second output terminal and divide the signal into a first divided signal and a second divided signal;

    A second switch configured to receive and output any one of the signal of the first output terminal and the first distribution signal;

    A third switch configured to receive and output any one of the signal of the third output terminal and the second distribution signal; And

    A wide elevation angle including a hybrid coupler which receives a signal output from the second switch and a signal output from the third switch and transmits two output signals having a 90 degree phase difference to the first antenna and the second antenna, respectively Y-axis horizontal array antenna device having a.

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