JPH0385906A - Array antenna - Google Patents

Abstract

PURPOSE:To adjust and change the direction of radiation beam by connecting plural radiators to microwave transmission lines arranged in a line at an interval in the line direction and interposing a phase shifter between connecting points in series respectively. CONSTITUTION:A microwave fed from an input output terminal 1 to a power distributer 2 is distributed at a same phase and fed to rectangular waveguides 3a-3h. Then slots 41a-41g, 42a-42g,..., 48a-48g, as radiators are opened and arranged to the same face of the rectangular waveguides 3a-3h arranged in parallel in a plane at the same interval in their axial direction at the same interval of, e.g. a half the in-guide wavelength. Furthermore, a dielectric material is arranged respectively in the inner entrance of the rectangular waveguides 3a-3h to form phase shifters 5a-5h and the phase shifters 5a-5h are controlled interlocking with each other properly. Thus, the phase of the microwave given to the radiator is deviated with the arrangement in the direction of line and the direction of radiation beam is adjusted in the line direction.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an array antenna that can adjust the direction of a radiation beam.

(Prior art) A plurality of radiators such as slots are arranged in the axial direction on one side of a rectangular waveguide, and a plurality of these rectangular waveguides are arranged in parallel and planar so that the radiators are on the same side. For example, an array antenna configured by arranging antennas is shown in Japanese Patent Application Laid-Open No. 63-285002 and Japanese Patent Application Laid-Open No. 63209206.

In the array antenna disclosed in Japanese Patent Application Laid-Open No. 63-285002, phase shifters are interposed between the ends of the plurality of rectangular waveguides and the power divider, and these phase shifters are used. By adjusting the phase of the microwave and applying it to each rectangular waveguide with an appropriate shift, the direction of the radiation beam can be adjusted in the direction in which the rectangular waveguides are arranged in parallel.

Furthermore, Japanese Patent Application Laid-Open No. 63-209206 states that the direction of the radiation beam in the axial direction of the rectangular waveguide is determined by the interval between the slots arranged in the rectangular waveguide and the wavelength propagated in the waveguide. It has been shown that

(Problem to be solved by the invention 1) By the way, in the device shown in Japanese Patent Application Laid-Open No. 63-285002, the direction of the radiation beam can be adjusted in the direction in which the rectangular waveguides are arranged in parallel. It is only possible to adjust the direction of the radiation beam along the axis of the wave tube. Also, JP-A-6
In the technique disclosed in Publication No. 3-209206, the direction of the radiation beam is predetermined in the axial direction of the rectangular waveguide.
The adjustment cannot be changed.

The present invention has been made in view of the above-described circumstances of the conventional array antenna, and an object of the present invention is to provide an L-shaped array antenna that can adjust and change the direction of a radiation beam.

(Means for Solving the Problems) In order to achieve the above object, the array antenna of the present invention connects a plurality of radiators at intervals in the line direction to a microwave transmission line arranged in a straight line. and phase shifters are interposed in series between the connection points to which the radiators are connected on the microwave transmission line.

In the array antenna of the present invention, a plurality of straight microwave transmission lines are arranged in parallel, and a plurality of radiators are connected to these microwave transmission lines at intervals in the line direction, and the plurality of linear microwave transmission lines are arranged in parallel. A power divider that supplies microwaves in the same phase is provided at the input end of the microwave transmission line, and a first phase shifter is connected in series between the connection points to which the radiator is connected on the microwave transmission line. A second phase shifter is interposed in series between the power divider and the copper discharger of the microwave transmission line.

Further, the array antenna of the present invention has a plurality of radiators arranged on one side of the rectangular waveguide in the axial direction of the rectangular waveguide,
A dielectric may be disposed inside the rectangular waveguide between at least the radiators, and this dielectric may be configured to be movable and adjustable in a direction perpendicular to the axial direction.

In the array antenna of the present invention, a plurality of rectangular waveguides each having a radiator arranged on one side are arranged in parallel and in a plane so that the radiator is on the same side. A power divider that supplies microwaves in the same phase is provided at the end of the rectangular waveguide, dielectrics are placed on the inner side of the plurality of rectangular waveguides, and these dielectrics are connected to the rectangular waveguide. It may be configured to be movable and adjustable in a direction orthogonal to the axial direction of the tube.

Furthermore, in the array antenna of the present invention, a plurality of radiators are arranged on one side of the rectangular waveguide in the axial direction of the rectangular waveguide, and the rectangular waveguide is arranged such that the radiators are on the same side. A plurality of tubes are arranged in parallel and in a plane, and a power divider is provided to supply microwaves in the same phase to the ends of the plurality of rectangular waveguides, and at least the radiator is provided inside the rectangular waveguide. A first dielectric is disposed between them, a second dielectric is disposed on the inner entrance side of the rectangular waveguide, and these first and second dielectrics are arranged in a direction orthogonal to the axial direction. It is also possible to configure the structure so that the movement can be adjusted freely. and,
The plurality of radiators may be arranged at regular intervals, and the first dielectrics may all be connected so that they can be moved and adjusted so that they are at the same position within the rectangular waveguide. and again,
The plurality of rectangular waveguides may be arranged in parallel at regular intervals, and all of the second dielectrics may be connected so that the rectangular waveguides can be moved and adjusted so that their positions within the rectangular waveguides are linear. .

(Function) Since multiple radiators are connected to the microwave transmission line and a phase shifter is inserted in series between the radiators, the phase shifter reduces the phase amount of the microwave propagating through the microwave transmission line. can be adjusted, the phase of the microwave at the radiator can be adjusted, and the direction of the radiation beam can be adjusted in the line direction of the microwave transmission line.

Then, if the phase amount of the microwave propagated through the microwave transmission line is adjusted by the first phase shifter, and the phase of the microwave given to each microwave transmission line is adjusted by the second phase shifter. For example, the direction of the radiation beam can be adjusted by the first and second phase shifters in the direction of the line and two axes orthogonal thereto.

Furthermore, when the dielectric is placed at the center of the rectangular waveguide, that is, at the position where the electric field is maximum, the phase amount of the microwave increases the most and the speed of the microwave is slowed down. Further, as the dielectric material is moved toward the end inside the rectangular waveguide, the phase amount becomes smaller and the delay in the microwave speed becomes smaller. Therefore, by adjusting the internal position by moving the dielectric in a direction orthogonal to the axial direction inside the rectangular waveguide, the speed of the microwave propagated in the axial direction can be adjusted and changed, and the micro wave in the radiator can be adjusted. The phase of the wave can be adjusted and the direction of the radiation beam can be adjusted in the axial direction of the rectangular waveguide with a simple construction.

Then, by adjusting the position of the dielectric placed on the internal entrance side of the rectangular waveguides arranged in parallel and in a plane in a direction perpendicular to the axial direction, the microwaves propagated through the rectangular waveguides can be adjusted. The phase of each is shifted. Therefore, by appropriately adjusting the position of the dielectric, the direction of the radiation beam can be adjusted in the direction in which the plurality of rectangular waveguides are arranged in parallel with a simple structure.

Furthermore, if the speed of the microwave propagated inside the rectangular waveguide is adjusted by the first dielectric, and the phase of the microwave given to each rectangular waveguide is adjusted by the second dielectric, By adjusting the movement of the first and second dielectrics, the direction of the radiation beam can be adjusted in two orthogonal axes. Then, if the radiators are arranged at regular intervals in the axial direction of the rectangular waveguide, and the first dielectrics are all connected and adjusted so that the positions of ゛ are the same inside the rectangular waveguide, then , it is easy to adjust the direction of the radiation beam in the axial direction. Then, a plurality of rectangular waveguides are arranged in parallel at regular intervals, and all the second dielectrics placed on the internal entrance side are connected so that the positions inside the rectangular waveguides are in a straight line. If the movement is adjusted, the phase of the microwave applied to each rectangular waveguide will be shifted by the same amount to the adjacent rectangular waveguides, making it easy to adjust the direction of the radiation beam in the direction in which the rectangular waveguides are arranged in parallel. .

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4. 1 is a configuration diagram of an embodiment of the array antenna of the present invention, FIG. 2 is a perspective view of an external appearance of a specific example of the array antenna of FIG. Y of
-Y vertical sectional view, and FIG. 4 is a XX vertical sectional view of FIG.

First, the configuration of the array antenna of the present invention will be explained with reference to FIG. In FIG. 1, microwaves sent from an input/output terminal 1 to a power divider 2 are distributed in the same phase by the power divider 2, and are divided into, for example, eight rectangular waveguides 3. ,~
3he sent. These rectangular waveguides 36 to 3h are arranged in parallel in a plane at the same intervals. Furthermore, on the same side of the rectangular waveguides 3a to 3h arranged in parallel,
In the axial direction (hereinafter referred to as the X-axis direction) of the rectangular waveguides 31 to 3h, the radiator slots 4. a~41s+ 42a~42□"-+
48a to 488 are arranged in an open arrangement. Furthermore, as will be described later, dielectrics are placed on the inner entrance sides of the rectangular waveguides 31 to 3h, respectively, and phase shifters 5 to 5h are provided. These phase shifters 5a to 5h are controlled in conjunction with each other as appropriate, and can be adjusted so that the phases of the microwaves applied to the rectangular waveguides 3, 1 to 3h are mutually shifted by the same amount. . Furthermore, slots 41□ to 4□ are formed inside the rectangular waveguides 3° to 3h. , 421-425.・−，48゜〜
As will be described later, a dielectric material is placed between each of the phase shifters 6, to 6. ．． ,6□6~62f
+ ”” + 61Sa to 68f are arranged. And these phase shifters 6, glaze 6□f+62a to 62f,...
- 6111a to 6111 degrees are all controlled in conjunction with each other as appropriate, and the speed of the microwave propagating in the X-axis direction through the rectangular waveguides 36 to 3h is adjusted to increase or decrease in the same way in each of the rectangular waveguides 31 to 3h. obtain.

Next, the configuration shown in FIG. 1 will be explained in more detail with reference to FIGS. 2 to 4. The power divider 2 is constituted by a Y branch of a rectangular waveguide, and microwaves are given to the entrance side ends of the rectangular waveguides 3a to 3h in the same phase. And phase shifters 5□~ arranged on the entrance side of the rectangular waveguides 3a~3h
5h, a second waveguide is installed on the inner population side of the rectangular waveguides 3a to 3h.
Dielectric material 7. ~7. h is arranged in the direction in which the rectangular waveguides 36 to 3h are arranged in parallel (hereinafter referred to as the Y-axis direction). These second dielectrics 7, - 7h are inserted into the slots 4. of the rectangular waveguides 3a - 3h. ~4. □42a~42+1+
"-* 4Aa to 48.l are fixed to one end of the second support shafts 8a to 8h that can move through the surface opposite to the one side where they are arranged. Other than these second support shafts 8a to 8h The end is swingably connected to a y-axis operating member 9 that is long in the Y-axis direction, and all of the second dielectrics 76 to 7h are connected to form a second dielectric group.This Y-axis operating member 9, the second dielectric 7h in the rectangular waveguide 3h at one end in the Y-axis direction is located at the center of the waveguide, as shown in FIG. The second dielectric 7m in 3a is located at the end in contact with the side surface of the waveguide, and the rectangular waveguide 3b~
3. The positions of the second dielectrics 7b to 7 within l are the second dielectrics at both ends.
Dielectric material 7. and 7h. Alternatively, the second dielectric 7h at one end may be located at the end in contact with the side surface of the waveguide, and the second dielectric 7m at the other end may be located at the center of the waveguide. The straight line on which 71 to 7h are located is configured so that it can have both an elevation angle and a depression angle in the plane of the paper of FIG. 3 with respect to the Y-axis direction.

In addition, slots 4 and 4.34 of the rectangular waveguides 3a to 3h
□1 to 42s, -, 48a to 48□, phase shifters 61a to 6. ,．． 6°8~621.・−
As 168a to 6af, slots 4, to 41g, 42a to 4□8°++, 4.
．． ~48g, the first dielectric 10. a~10+f,
10□8~10□,, m, 10A, ~108. are arranged in the X-axis direction. These first dielectrics IO1~
1.0. ．． .

102a to LO□r, ++, 1oaa-10ar are slots 4I to 41□421 of the rectangular waveguides 3a to 3h.
~4□8. ... 48, . ~
lI+r, I+2. ~112,,-,118. ~11
It is fixed at the - end of □. These first support shafts 11.
, I-yl1, , 112a~+12. , -・118
a~11. , the other ends of which are connected to the X@operation board 12 and connected to the first dielectrics lO1-10. ．． ．． 10□, ~10□1.・
. . IO2, to l08f are all connected to form a first dielectric group. By operating this X-axis operation plate 12, all the first dielectrics 10+, N10+r, 102-~
10. ．． ．． -108□ to 1Oaf are moved and adjusted to the same position between the center of the waveguide and the end in contact with the side surface.

In such a configuration, the X-axis operation plate 12 is connected to the rectangular waveguide 3.
．． , ~3h, the positions of the I-th dielectric group in the waveguide all change in conjunction with each other by adjusting the movement in the direction toward or away from each other. Therefore, the microwave propagated in the waveguide has the slowest speed when the first dielectric group is located at the center of the waveguide, and when the first dielectric group is in contact with the side of the waveguide. The speed increases even when it is located at the edge.

Then, due to the change in the propagation speed of the microwave, the slot 4. ~4. The phase of the microwave is adjusted at the position of □4211 to 42□”+488 to 48g, and the direction θ of the radiation dome 20 can be arbitrarily adjusted in the X-axis direction as shown in FIG. is configured such that the radiation beam 20 is in the Z-axis direction perpendicular to the plane constituted by the rectangular waveguides 36 to 3h with the dielectric group at a certain position of the waveguide in the center of the movement adjustment range. There is.

In addition, if the Y-axis operating member 9 is appropriately moved and adjusted so that one end is close to the rectangular waveguides 38 to 3h and the other end is separated from the rectangular waveguides 38 to 3h, The phase of the microwave will shift slightly, and the third phase will shift slightly.
As shown in the figure, the direction θ7 of the radiation beam 20 can be arbitrarily adjusted in the Y-axis direction. Note that if the straight line on which the second dielectric group is located is parallel to the Y-axis direction, the phases of the microwaves given to each rectangular waveguide 37 to 3h are the same, and the radiation beam 20 is parallel to the Z-axis direction. Of course, it will be.

Therefore, by appropriately moving and operating the X-axis operation plate 12 and the Y-axis operation member 9, the direction of the radiation beam 20 can be arbitrarily adjusted in the two orthogonal directions of the X and Y axes.

Furthermore, the phase shifters 5a to 5a for adjusting the radiation beam 20
5h, 6. a~61? + 62a~6□7. -68a
~68. are the second and first dielectrics 7. ~7h+10Ia
-10+r, to□, ~102. ．． -10. ,~10
It has a simple structure in which the position inside the 8f waveguide is adjusted, and can be constructed at a relatively low cost, and its adjustment control mechanism is extremely simple.

Note that in the above embodiment, the first and second dielectrics 10
1a~to,,, to□,~10□,, ++, t
o8. ~1.08. .

7a to 7h are connected to the first and second support shafts 11. ~11. ．． .

112a-112. , .-, 118, ~ II8. ．． 8.
By making it possible to adjust the heights fixed at ~8h, it is also possible to finely adjust the phase of the microwaves radiated by each radiator.

- FIG. 5 is a longitudinal sectional view of a rectangular waveguide showing another embodiment of the array antenna of the present invention. In Figure 5, the first
Components that are the same as those in the figures to FIG.

In the embodiment shown in FIG. 5, the slots 41a to 41 fl+ 4 shown in FIGS. 2 to 4 serve as radiators.
In place of 2a~42g+"''+48s~481,
Rectangular waveguide 3. The probes 14.14- are protruded inside the rectangular waveguides 3a-3h, and the probes 14.14- are placed outside the rectangular waveguides 3a-3h.
A helical antenna 15.15- connected to 14- is provided. In addition, inside the rectangular waveguides 31 to 3h,
A long belt-shaped first dielectric body 16, 16-- is arranged in the axial direction, and this first dielectric body 16, 16-- is connected to the X-axis operation plate 12 by a first support shaft 17, 17-. has been done. Note that both ends of the first dielectrics 16, 16-. are formed in a tapered shape so that reflection of microwaves does not occur at the ends.

In such a configuration, similarly to the embodiment shown in FIG. 2, by positioning the first dielectric 16, 16- at the center of the waveguide or at the end touching the side surface of the waveguide, a rectangular waveguide can be formed. tube 3
The velocity of the microwaves propagated in a-3h is adjusted so that the direction θ of the radiation beam 20 can be adjusted in the X-axis direction.

Note that in the embodiment shown in FIG. 5 above, the first dielectric 16
．． 16-... is rod-shaped with the same cross-sectional area in the X-axis direction, but
Slots 41a~41□4□a~4□□...48a~
Increase the cross-sectional area between 488 and slots 4.1 to 41
g+ 42a~' 27f+ -'', 4aa~48g
The cross-sectional area may be configured to be small at a position corresponding to , so as to reduce disturbance of the electric field within the waveguide.

Further, in the above embodiment, the radiator is in the slot 41a.
~4,,,42a~42g+-"+4a
Although shown as a to 48g and helical antennas 15.15-.-, the present invention is not limited thereto, and may be a dipole antenna or the like.

The intervals between the radiators arranged in the X-axis direction of the rectangular waveguides 3a to 3h are such that the phase of the microwave in the radiators is
For example, the first dielectric 10. a~10□.

10□5~IO□,, +++, 10A, ~10Ar
By varying the magnitude or position of 36. in the waveguide, the phase shift 36. , N6□r+625”
"2F+"-T 6aa~68 They do not necessarily need to be provided at regular intervals as long as they can be adjusted appropriately.

Further, the intervals at which the rectangular waveguides 3a to 3h are arranged in the Y-axis direction do not necessarily have to be constant as long as the phase shift of the microwave given by the phase shifts 15 and 5h can be adjusted appropriately.

Incidentally, in the embodiment described above, the rectangular waveguides 3a to 3h are used as microwave transmission lines, but FIG. 6 shows another embodiment in which a microstrip line is used as the microwave transmission line.

FIG. 6 is an external perspective view of another embodiment of the array antenna of the present invention.

The array antenna of the present invention shown in FIG. 6 includes, for example, three microstrip lines 32 □ 32b in the X-axis direction on the surface of a dielectric substrate 31 having a ground conductor 30 on the back surface.
32e are arranged in parallel. And these microstrip lines 32. ．． 32b and 32c each have an X
Microstrip antennas 33 provided at equal intervals in the axial direction. ~1c+332a~2c+3336~3c are connected. Furthermore, microstrip line 32□3
2b, 32c microstrip antenna 331-I
The first phase shifter "la+Ib+342a" using a variable capacitance diode and a 90° hybrid is connected between the connection points where c+332s~2e+333a~3c are connected.
+2b+343□rib are connected in series.

These first phase shifters 34. ,,,b,34□□2b,
All the variable capacitance diodes of 343□3b are electrically connected in a direct current manner and are adjusted to have the same phase amount by a control voltage applied to the control terminal 35. Further, microwaves are distributed in the same phase to one end of the microstrip lines 32□ 32b, 32c by a power divider 37 composed of microstrip lines equidistant from the microwave input/output terminal 36. Furthermore, the microstrip line 32. ．． 32. .

A second phase shifter 38a is provided between the power divider 37 of 32c and the microstrip antennas 33+-, 33□, 333a.

38,. 38. are interposed in series. These second phase shifters 38□: 18b, 38c are also formed using variable capacitance diodes and 90° hybrids, and the variable perspective diodes are each connected to a control terminal 39. ．． 39b.

Separate control voltages are provided from 39e.

In such a configuration, the control terminal 39. ．． 39. ．． 39e
By changing the control voltage applied to the second phase shifter 38 . ．． The phase amounts of 38b and 38c are slightly different, and the direction of the radiation beam can be adjusted in the Y-axis direction in FIG.

Then, by controlling the control voltage applied to the control terminal 35, the first
Phase shifter 3Ga*Ib+342M+2b+3438-3
The phase amount of b changes by the same amount, and the microstrip antenna 33□6~re *332s~2c+ 331a"
The phase of the microwave applied to 3c is shifted by the arrangement in the X-axis direction, and the direction of the radiation beam can be adjusted in the X-axis direction in FIG.

Therefore, control terminals 35, 39 . By appropriately setting the control voltages applied to J9b and 39c, the direction of the radiation beam can be arbitrarily adjusted in the two axis directions of X and Y.

Note that the microwave transmission line is not limited to the above embodiments, and may be a dielectric line or a coaxial line. Further, the phase shifter is not limited to an analog phase shifter, but may be a digital phase shifter.

(Effects of the Invention) Since the present invention is configured as described above, it produces effects as described below.

First, by adjusting the phase of the microwave propagated through the microwave transmission line using a phase shifter, the phase of the microwave given to the radiator is shifted depending on the arrangement in the line direction, and the direction of the radiation beam is adjusted in the line direction. can do.

If the first phase shifter adjusts the phase amount of the microwave propagated through the microwave transmission line, and the second phase shifter shifts the phase of the microwave applied to each microwave transmission line, then By controlling the first and second phase shifters, the direction of the radiation beam can be adjusted to the line direction and two axial directions orthogonal thereto.

In addition, by moving and adjusting the position of the dielectric bodies arranged in the axial direction inside the rectangular waveguide, the speed of the microwave propagating in the waveguide can be adjusted and changed, and the microwave in the radiator can be adjusted. The phase of the waves changes and the direction of the radiation beam can be easily adjusted along the axis of the rectangular waveguide. Moreover, the direction of the radiation beam can be adjusted by simply adjusting the position of the dielectric, and the control mechanism for adjusting the position is extremely simple and inexpensive compared to conventional phase shifters. It's easy.

If we move and adjust the position of the dielectrics placed on the internal entrance side of multiple rectangular waveguides arranged in parallel and in a plane, we can adjust the position of the dielectrics that are propagated to each rectangular waveguide. The waves are out of phase and the direction of the C1 radiation beam can be easily adjusted in the direction in which the rectangular waveguides are arranged in parallel. Moreover, the direction of the radiation beam can be adjusted by simply adjusting the position of the dielectric, and the entire device can be constructed at a lower cost than a conventional phase shifter.

Furthermore, by arranging multiple rectangular waveguides in parallel and in a plane,
If the first dielectrics are arranged in the axial direction inside the rectangular waveguide and the second dielectrics are arranged on the entrance side of the rectangular waveguide, the conductivity of the first and second dielectrics is By moving and adjusting the position inside the waveguide, the direction of the radiation beam can be arbitrarily adjusted in two axial directions: the axial direction of the rectangular waveguide and the parallel direction perpendicular to the axial direction of the rectangular waveguide. If the radiators are arranged at regular intervals in the axial direction of the rectangular waveguide, the movement of the first dielectric body placed inside the rectangular waveguide is adjusted so that the position is the same inside the waveguide. By doing so, the rate of change in the phase of the microwave in the radiator can be made the same by moving the first dielectric, and the mechanism for controlling the adjustment of the radiation beam in the axial direction can be constructed easily and inexpensively. Furthermore, if rectangular waveguides are arranged in parallel at regular intervals, by adjusting the position so that the second dielectric placed on the internal entrance side of each is in a straight line, the adjacent rectangular waveguides can be arranged in parallel. The phase of the microwaves applied to the waveguide is shifted by the same amount, and a control mechanism for adjusting the radiation beams in parallel directions can be constructed easily and inexpensively.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the array antenna of the present invention, FIG. 2 is an external perspective view of a specific example of the array antenna of FIG. 1, and FIG. 4 is a Y-Y longitudinal sectional view of FIG. 2, and FIG. 4 is an XX longitudinal sectional view of FIG.
FIG. 5 is a vertical sectional view of a rectangular waveguide showing another embodiment of the array antenna of the present invention, and FIG. 6 is an external perspective view of another embodiment of the array antenna of the present invention. 2: Power divider, 31~3h: Rectangular waveguide, 4,~4
．． g, 4□8~42□-46a~48. Nislot, 5a-5. ．． 6. a~611F+ 62a~62r, +
++688-6□: Phase shifter, 7a-7h: Second dielectric, 9: Y-axis operating member, IO1-101r, 102. ~102f,...-10a
a=lOar: first dielectric, 12: X-axis operation board,
14 nib lobe, 15: helical antenna,
25: Radiation beam, 32□32. ．． 32c: Microstrip line, 33, ~lc+332a~2c+333
a to 3e: Microstrip antenna, 341□lb+”2□2b, 343□3.: First phase shifter, 37: Power divider, 38□3B, 38c: Second phase shifter.

Claims (1)

[Claims] 1. A connection in which a plurality of radiators are connected to a microwave transmission line arranged in a straight line at intervals in the line direction, and the radiators are connected to the microwave transmission line. An array antenna characterized by having phase shifters interposed in series between each point. 2. A plurality of straight microwave transmission lines are arranged in parallel, and a plurality of radiators are connected to each of these microwave transmission lines at intervals in the line direction. A power divider that supplies microwaves in the same phase is provided at the input end, and first phase shifters are interposed in series between the connection points to which the radiator is connected on the microwave transmission line, and An array antenna characterized in that a second phase shifter is interposed in series between the power divider and the radiator of the wave transmission line. 3. Arranging a plurality of radiators in the axial direction of the rectangular waveguide on one side of the rectangular waveguide, arranging a dielectric material between at least the radiators inside the rectangular waveguide, and An array antenna characterized in that a dielectric is configured to be movable and adjustable in a direction perpendicular to the axial direction. 4. A plurality of rectangular waveguides each having a radiator arranged on one side are arranged in parallel and in a plane so that the radiators are on the same side, and a A power divider that supplies microwaves in the same phase is provided, dielectrics are placed on the internal entrance sides of the plurality of rectangular waveguides, and these dielectrics are arranged in a direction orthogonal to the axial direction of the rectangular waveguides. An array antenna characterized in that it is configured to be movable and adjustable. 5. A plurality of radiators are arranged on one side of the rectangular waveguide in the axial direction of the rectangular waveguide, and the plurality of rectangular waveguides are arranged in parallel and flat so that the radiators are on the same side. arranged in a shape,
A power divider for supplying microwaves in the same phase is provided at the ends of the plurality of rectangular waveguides, and a first dielectric is disposed inside each of the rectangular waveguides at least between the radiators. , a second dielectric body is disposed on the inner entrance side of the rectangular waveguide, and the first and second dielectric bodies are configured to be movable and adjustable in a direction perpendicular to the axial direction. array antenna. 6. The array antenna according to claim 5, wherein the plurality of radiators are arranged at regular intervals, and the first dielectrics are all connected so that the positions within the rectangular waveguide are the same. An array antenna characterized by being freely adjustable in movement. 7. The array antenna according to claim 5, wherein the plurality of rectangular waveguides are arranged in parallel at regular intervals, and all of the second dielectrics are connected so that the positions inside the rectangular waveguides are straight lines. An array antenna characterized by being freely adjustable in movement as shown in the figure.