Waveguide-type power distributor, waveguide-type power synthesizer, antenna device, and radar

Abstract

To provide a waveguide-type power distributor which can be downsized.SOLUTION: The waveguide-type power distributor includes: a first waveguide-type resonator in which an electric wave is input; a second waveguide-type resonator connected to the first waveguide-type resonator through an iris formed in an H-plane; a third waveguide-type resonator connected to the first waveguide-type resonator through an iris formed in the H-plane; a first output waveguide-type line connected to the second waveguide-type resonator through an iris formed in the H-plane; a second output waveguide-type line connected to the second waveguide-type resonator through an iris formed in the H-plane; a third output waveguide-type line connected to the third waveguide-type resonator through an iris formed in the H-plane; and a fourth output waveguide-type line connected to the third waveguide-type resonator through an iris formed in the H-plane.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a waveguide type power divider, a waveguide type power combiner, an antenna device, and a radar. [Background technology]

[0002] Non-Patent Document 1 discloses a waveguide antenna that uses a branch circuit that branches on the E-plane. [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] A. Rogers, "Wideband Squintless Linear Arrays", The Marconi Review, No.187, Fourth Quarter 1972, p.221-243 Summary of the Invention [Problem to be solved by the invention]

[0004] The waveguide antenna of the above-mentioned non-patent document 1 has a problem of being large in size.

[0005] The present invention has been made in consideration of the above problems, and a main object of the present invention is to provide a waveguide type power splitter, a waveguide type power combiner, an antenna device, and a radar that can be made compact. [Means for solving the problem]

[0006] In order to solve the above problem, a waveguide type power splitter according to one embodiment of the present invention includes a first waveguide type resonator to which an electric wave is input, a second waveguide type resonator connected to the first waveguide type resonator through an iris formed between H-planes, a third waveguide type resonator connected to the first waveguide type resonator through an iris formed between H-planes, a first output waveguide type line connected to the second waveguide type resonator through an iris formed between H-planes, a second output waveguide type line connected to the second waveguide type resonator through an iris formed between H-planes, a third output waveguide type line connected to the third waveguide type resonator through an iris formed between H-planes, and a fourth output waveguide type line connected to the third waveguide type resonator through an iris formed between H-planes. This makes it possible to achieve miniaturization by utilizing the iris formed between the H-planes.

[0007] In the above embodiment, an input waveguide line may be further provided that is connected to the first waveguide resonator through an iris formed between the H-planes, thereby making it possible to input radio waves from the input waveguide line to the first waveguide resonator.

[0008] In the above aspect, the H-plane of the first waveguide-type resonator to which the second and third waveguide-type resonators are connected may be located on the opposite side to the H-plane of the first waveguide-type resonator to which the input waveguide-type line is connected. This makes it possible to dispose the second and third waveguide-type resonators on the opposite side to the input waveguide-type line.

[0009] In the above aspect, the H-plane of the second waveguide-type resonator to which the first output waveguide-type line and the second output waveguide-type line are connected may be located on the opposite side to the H-plane of the second waveguide-type resonator to which the first waveguide-type resonator is connected. This makes it possible to arrange the first output waveguide-type line and the second output waveguide-type line on the opposite side of the first waveguide-type resonator.

[0010] In the above aspect, the H-plane of the third waveguide-type resonator to which the third output waveguide-type line and the fourth output waveguide-type line are connected may be located on the opposite side to the H-plane of the third waveguide-type resonator to which the first waveguide-type resonator is connected. This makes it possible to dispose the third output waveguide-type line and the fourth output waveguide-type line on the opposite side to the first waveguide-type resonator.

[0011] In the above aspect, the first waveguide resonator, the second waveguide resonator, the third waveguide resonator, the first output waveguide line, the second output waveguide line, the third output waveguide line, and the fourth output waveguide line may have a common E-plane, which can simplify the structure.

[0012] In the above aspect, the power amplifier may further include a block having a recess formed on one surface thereof, the recess being the first waveguide resonator, the second waveguide resonator, the third waveguide resonator, the first output waveguide line, the second output waveguide line, the third output waveguide line, and the fourth output waveguide line, and a cover that comes into contact with the one surface of the block and covers the recess. This makes it possible to simplify the structure.

[0013] In the above embodiment, a fourth waveguide resonator may be further provided, connected to the first waveguide resonator through an iris formed between the H-planes. This makes it possible to arrange the waveguide resonators in multiple stages.

[0014] In the above embodiment, an input waveguide line may be further provided that is connected to the fourth waveguide resonator through an iris formed between the H-planes, thereby making it possible to input radio waves from the input waveguide line to the fourth waveguide resonator.

[0015] In addition, a waveguide type power combiner according to another aspect of the present invention includes a first input waveguide type line to which radio waves are input, a second input waveguide type line to which radio waves are input, a third input waveguide type line to which radio waves are input, a fourth input waveguide type line to which radio waves are input, a first waveguide type resonator connected to the first input waveguide type line and the second input waveguide type line through an iris formed between H-planes, a second waveguide type resonator connected to the third input waveguide type line and the fourth input waveguide type line through an iris formed between H-planes, and a third waveguide type resonator connected to the first waveguide type resonator and the second waveguide type resonator through an iris formed between H-planes. This makes it possible to achieve miniaturization by utilizing the iris formed between the H-planes.

[0016] According to another aspect of the present invention, there is provided an antenna device including the above-described waveguide power splitter or the above-described waveguide power combiner, which makes it possible to reduce the size of the antenna device.

[0017] According to another aspect of the present invention, there is provided a radar including the antenna device described above, which makes it possible to realize a radar including an antenna device that has been made compact. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 illustrates an example of a radar. [Diagram 2] FIG. 2 is an exploded perspective view showing an example of a waveguide type power splitter. [Diagram 3] FIG. 1 is a diagram illustrating an example of antenna directivity. [Figure 4] FIG. 2 is a plan view illustrating an example of a waveguide type power divider. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this specification and each drawing, elements similar to those described above with reference to the previous drawings are given the same reference numerals, and detailed description thereof may be omitted as appropriate.

[0020] [radar] 1 is a block diagram showing an example of the configuration of a radar 100 according to an embodiment. The radar 100 includes an antenna device 10 according to an embodiment. In addition to the antenna device 10, the radar 100 further includes a transceiver unit 11, a signal processing unit 12, and a control unit 13.

[0021] The transceiver 11 includes a modulator and a magnetron, and generates a transmission signal by intermittently driving the magnetron with a pulse voltage generated by the modulator in response to a trigger signal from the signal processor 12. The antenna device 10 transmits the transmission signal from the transceiver 11 as a radio wave pulse.

[0022] The antenna device 10 also converts the received reflected wave into a received signal. The received signal from the antenna device 10 passes through a frequency conversion / amplification circuit and a detection circuit included in the transmitting / receiving unit 11, is processed in the signal processing unit 12, and is sent to the control unit 13 as a digital signal.

[0023] The radar 100 is, for example, a ship radar that transmits and receives microwaves, but is not limited thereto, and may be, for example, an in-vehicle radar for obstacle detection or collision prevention that transmits and receives millimeter waves.

[0024] The antenna device 10 includes a waveguide-type power splitter 1 according to an embodiment described below. The waveguide-type power splitter 1 also serves as a waveguide-type power combiner according to an embodiment. That is, the input / output relationship can be interchanged.

[0025] [First embodiment] 2 is an exploded perspective view showing an example of a waveguide-type power splitter 1A according to the first embodiment. The waveguide-type power splitter 1A includes a block 2 having a recess 20 formed on an upper surface 23 thereof, and a cover 3 that contacts the upper surface 23 of the block 2 and covers the recess 20. The block 2 and the cover 3 are made of a conductive metal material such as aluminum.

[0026] The waveguide power splitter 1A includes an input waveguide line 40, a first waveguide resonator 51, a second waveguide resonator 52, a third waveguide resonator 53, a first output waveguide line 61, a second output waveguide line 62, a third output waveguide line 63, and a fourth output waveguide line 64. These are formed by the recess 20 of the block 2.

[0027] The X direction in FIG. 2 is the direction in which the output waveguide lines 61-64 are arranged relative to the input waveguide line 40. In the following description, the X direction is also referred to as the "forward direction" and the opposite direction as the "rear direction."

[0028] The Y direction is the direction in which the output waveguide lines 61-64 are arranged, and in the following description, the Y direction is also referred to as the "right direction" and the opposite direction is also referred to as the "left direction."

[0029] The Z direction is the direction in which the cover 3 is disposed relative to the block 2, and in the following description, the Z direction is also referred to as the "upward direction" and the opposite direction is also referred to as the "downward direction." The up-down direction is the electric field direction of radio waves propagating within the waveguide power splitter 1A. The radio waves propagate in TE mode.

[0030] In this specification, the plane perpendicular to the electric field direction is referred to as the "E plane," and the plane perpendicular to the E plane is referred to as the "H plane." In other words, the bottom surface 25 of the recess 20 of the block 2 and the lower surface of the cover 4 are the "E plane," and the side surface 27 of the recess 20 is the "H plane."

[0031] An input waveguide line 40 (hereinafter also simply referred to as "input line 40") receives radio waves from the transmitting / receiving unit 11 (see FIG. 1).

[0032] A first waveguide resonator 51 (hereinafter also simply referred to as "first resonator 51") is connected to an input line 40 via an iris 5a, and receives radio waves from the input line 40.

[0033] The second waveguide resonator 52 (hereinafter also simply referred to as the "second resonator 52") is connected to the first resonator 51 via the iris 5b, and receives radio waves from the first resonator 51.

[0034] A third waveguide-type resonator 53 (hereinafter also simply referred to as the “third resonator 53”) is also connected to the first resonator 51 via the iris 5c, and receives radio waves from the first resonator 51.

[0035] The radio wave input to the first resonator 51 is distributed from the first resonator 51 to the second resonator 52 and the third resonator 53 .

[0036] The first output waveguide line 61 (hereinafter also simply referred to as the "first output line 61") is connected to the second resonator 52 via the iris 6a, and receives radio waves from the second resonator 52.

[0037] A second output waveguide line 62 (hereinafter also simply referred to as the "second output line 62") is also connected to the second resonator 52 via the iris 6b, and receives radio waves from the second resonator 52 as input.

[0038] The radio wave input to the second resonator 52 is distributed from the second resonator 52 to the first output line 61 and the second output line 6 .

[0039] The third output waveguide line 63 (hereinafter also simply referred to as the "third output line 63") is connected to the third resonator 53 via the iris 6c, and receives radio waves from the third resonator 53 as input.

[0040] A fourth output waveguide type line 64 (hereinafter also simply referred to as the "fourth output line 64") is also connected to the third resonator 53 via the iris 6d, and receives radio waves from the third resonator 53 as input.

[0041] The radio wave input to the third resonator 53 is distributed from the third resonator 53 to a third output line 63 and a fourth output line 64 .

[0042] The output lines 61-64 are open toward the front and function as antenna elements of the antenna device 10 (see FIG. 1). However, the output lines 61-64 may output radio waves to a separate antenna element.

[0043] When waveguide power splitter 1A is used as a waveguide power combiner, input line 40 is used as an output line, and output lines 61-64 are used as input lines.

[0044] The input line 40, the first resonator 51, the second resonator 52, the third resonator 53, the first output line 61, the second output line 62, the third output line 63, and the fourth output line 64 have a common E-plane. That is, the respective E-planes are included in the same plane. The common E-plane is formed by the bottom surface 25 of the recess 20 and the lower surface of the cover 3.

[0045] The irises 5a-5c and 6a-6d are formed between the H-planes. That is, the irises 5a-5c and 6a-6d are formed so as to penetrate the side surface 27 of the recess 20 formed in the block 2A.

[0046] The iris 5 a is formed between the front H plane of the input line 40 and the rear H plane of the first resonator 51 .

[0047] The iris 5b is formed between the front H surface of the first resonator 51 and the rear H surface of the second resonator 52. In detail, the iris 5b is formed between the left part of the front H surface of the first resonator 51 and the right part of the rear H surface of the second resonator 52.

[0048] The iris 5c is formed between the front H-plane of the first resonator 51 and the rear H-plane of the third resonator 53. In detail, the iris 5c is formed between the right part of the front H-plane of the first resonator 51 and the left part of the rear H-plane of the third resonator 53.

[0049] The iris 6a is formed between the front H surface of the second resonator 52 and the rear H surface of the first output line 61. More specifically, the iris 6a is formed on the left side of the front H surface of the second resonator 52. The first output line 61 opens forward.

[0050] The iris 6b is formed between the front H surface of the second resonator 52 and the rear H surface of the second output line 62. More specifically, the iris 6b is formed on the right side of the front H surface of the second resonator 52. The second output line 62 opens forward.

[0051] The iris 6c is formed between the front H surface of the third resonator 53 and the rear H surface of the third output line 63. More specifically, the iris 6c is formed on the left side of the front H surface of the third resonator 53. The third output line 63 opens forward.

[0052] The iris 6d is formed between the front H surface of the third resonator 53 and the rear H surface of the fourth output line 64. More specifically, the iris 6d is formed on the right side of the front H surface of the third resonator 53. The fourth output line 64 opens forward.

[0053] In this way, a planar circuit including multiple waveguides connected to each other by irises formed between H-planes, that is, a planar circuit including multiple waveguides arranged in the in-plane direction of the E-plane, is called an "H-plane waveguide circuit."

[0054] The input line 40 is connected to the rear H surface of the first resonator 51, and the second resonator 52 and the third resonator 53 are connected to the front H surface of the first resonator 51. That is, the H surface of the first resonator 51 to which the second resonator 52 and the third resonator 53 are connected is located on the opposite side to the H surface of the first resonator 51 to which the input line 40 is connected.

[0055] The first resonator 51 is connected to the rear H surface of the second resonator 52, and the first output line 61 and the second output line 62 are connected to the front H surface of the second resonator 52. That is, the H surface of the second resonator 52 to which the first output line 61 and the second output line 62 are connected is located on the opposite side to the H surface of the second resonator 52 to which the first resonator 51 is connected.

[0056] The first resonator 51 is connected to the rear H surface of the third resonator 53, and the third output line 63 and the fourth output line 64 are connected to the front H surface of the third resonator 53. That is, the H surface of the third resonator 53 to which the third output line 63 and the fourth output line 64 are connected is located on the opposite side to the H surface of the third resonator 53 to which the first resonator 51 is connected.

[0057] In the waveguide power splitter 1A described above, the three resonators 51-53 and the four output lines 61-64 are branched on the H plane and arranged in a tree structure (or tournament shape), so that miniaturization can be achieved.

[0058] In addition, in the waveguide power divider 1A, the three resonators 51-53 are arranged in a tree structure between the input line 40 and the four output lines 61-64, so that each input / output path between the input line 40 and the four output lines 61-64 passes through two of the three resonators 51-53.

[0059] By selecting the desired values ​​for the coupling coefficient connecting two of these three resonators 51-53 and the external Q of the input / output paths, which is determined by the energy ratio, the power input to the input line 40 is distributed to the output lines 61-64 with the desired power distribution ratio. Furthermore, by designing these resonators 51-53 to have a filter function, unnecessary noise radiation can be suppressed.

[0060] Figure 3 shows an example of antenna directivity when the antenna structure of the waveguide type power splitter 1A is designed for the 24 GHz band. The radiation from the antenna openings of the output lines 61-64 is almost in phase in terms of the equivalent circuit. According to this figure, it can be seen that the waveguide type power splitter 1A has a simple structure but exhibits good antenna characteristics.

[0061] [Second embodiment] 4 is a plan view showing an example of a waveguide-type power splitter 1B according to the second embodiment. The waveguide-type power splitter 1B includes an input line 40, first to eighth resonators 51-56, 71, and 72, and first to eighth output lines 61-68.

[0062] Among these, the first through third resonators 51-53 and the first through fourth output lines 61-64 are as described in the above-mentioned waveguide power splitter 1A. The same is true for the fourth through sixth resonators 54-56 and the fifth through eighth output lines 65-68.

[0063] The first resonator 51 is connected to the seventh resonator 71 through an iris 5d, and receives radio waves from the seventh resonator 71. The seventh resonator 71 is connected to the input line 40 through an iris 7a, and receives radio waves from the input line 40.

[0064] The iris 5d is formed between the front H surface of the seventh resonator 71 and the rear H surface of the first resonator 51. In detail, the iris 5d is formed between the left part of the front H surface of the seventh resonator 71 and the right part of the rear H surface of the first resonator 51.

[0065] The iris 7a is formed between the front H surface of the input line 40 and the rear H surface of the seventh resonator 71. In detail, the iris 7a is formed between the left part of the front H surface of the input line 40 and the right part of the rear H surface of the seventh resonator 71.

[0066] The fourth resonator 54 is connected to the eighth resonator 72 through the iris 5e, and receives radio waves from the eighth resonator 72. The eighth resonator 72 is connected to the input line 40 through the iris 7b, and receives radio waves from the input line 40.

[0067] The iris 5e is formed between the front H surface of the eighth resonator 72 and the rear H surface of the fourth resonator 54. In detail, the iris 5e is formed between the right part of the front H surface of the eighth resonator 72 and the left part of the rear H surface of the fourth resonator 54.

[0068] The iris 7b is formed between the front H plane of the input line 40 and the rear H plane of the eighth resonator 72. In detail, the iris 7b is formed between the right part of the front H plane of the input line 40 and the right part of the rear H plane of the eighth resonator 72.

[0069] The power input to the input line 40 is distributed from the input line 40 to the seventh resonator 71 and the eighth resonator 72. However, the seventh resonator 71 and the eighth resonator 72 may be a single resonator.

[0070] The input line 40 is connected to the rear H surface of the seventh resonator 71, and the first resonator 51 is connected to the front H surface of the seventh resonator 71. That is, the H surface of the seventh resonator 71 to which the first resonator 51 is connected is located on the opposite side to the H surface of the seventh resonator 71 to which the input line 40 is connected.

[0071] The input line 40 is connected to the rear H plane of the eighth resonator 72, and the fourth resonator 54 is connected to the front H plane of the eighth resonator 72. That is, the H plane of the eighth resonator 72 to which the fourth resonator 54 is connected is located on the opposite side to the H plane of the eighth resonator 72 to which the input line 40 is connected.

[0072] As described above, in the waveguide power splitter 1B, the eight resonators 51-56, 71, and 72 are arranged in a tree structure between the input line 40 and the eight output lines 61-68. Therefore, each input / output path between the input line 40 and the eight output lines 61-68 passes through three of the eight resonators 51-56, 71, and 72.

[0073] As a result, in the waveguide power splitter 1B, it is possible to achieve higher frequency selectivity and narrower beam width than in the above-described waveguide power splitter 1A.

[0074] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made by those skilled in the art.

[0075] The shape of the cover 3 is not limited to a plate shape. A recess that is plane-symmetrical to the recess 20 of the block 2 may be formed in the cover 3, and the recesses may be mated to form a waveguide.

[0076] Furthermore, the number of output lines 61-68 is not limited to 4 or 8. The number of output lines may be further increased by utilizing a tree-structured arrangement of the resonators.

[0077] Representative embodiments of the present invention will be listed below.

[0078] (1) a first waveguide resonator to which radio waves are input; a second waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes; a third waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes; a first output waveguide line connected to the second waveguide resonator through an iris formed between H-planes; a second output waveguide line connected to the second waveguide resonator through an iris formed between the H-planes; a third output waveguide line connected to the third waveguide resonator through an iris formed between H-planes; a fourth output waveguide line connected to the third waveguide resonator through an iris formed between H-planes; A waveguide type power divider comprising:

[0079] (2) Further, an input waveguide type line connected to the first waveguide type resonator through an iris formed between the H-planes is provided. A waveguide type power divider as described in (1).

[0080] (3) an H-plane of the first waveguide-type resonator to which the second waveguide-type resonator and the third waveguide-type resonator are connected is located on the opposite side to an H-plane of the first waveguide-type resonator to which the input waveguide-type line is connected; A waveguide type power divider according to (2).

[0081] (4) an H-plane of the second waveguide-type resonator to which the first output waveguide-type line and the second output waveguide-type line are connected is located on the opposite side to an H-plane of the second waveguide-type resonator to which the first waveguide-type resonator is connected; A waveguide type power divider according to any one of (1) to (3).

[0082] (5) an H-plane of the third waveguide-type resonator to which the third output waveguide-type line and the fourth output waveguide-type line are connected is located on the opposite side to an H-plane of the third waveguide-type resonator to which the first waveguide-type resonator is connected; A waveguide type power divider according to any one of (1) to (4).

[0083] (6) the first waveguide-type resonator, the second waveguide-type resonator, the third waveguide-type resonator, the first output waveguide-type line, the second output waveguide-type line, the third output waveguide-type line, and the fourth output waveguide-type line have a common E-plane. A waveguide type power divider according to any one of (1) to (5).

[0084] (7) a block having recesses formed on one surface thereof, the recesses becoming the first waveguide-type resonator, the second waveguide-type resonator, the third waveguide-type resonator, the first output waveguide-type line, the second output waveguide-type line, the third output waveguide-type line, and the fourth output waveguide-type line; a cover that comes into contact with the one surface of the block and covers the recess; Further comprising: A waveguide type power divider according to any one of (1) to (6).

[0085] (8) Further comprising a fourth waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes. A waveguide type power divider according to any one of (1), (4) to (8).

[0086] (9) Further, an input waveguide type line connected to the fourth waveguide type resonator through an iris formed between the H-planes is provided. A waveguide type power divider according to (8).

[0087] (10) a first input waveguide line to which radio waves are input; a second input waveguide line to which radio waves are input; a third input waveguide line to which radio waves are input; a fourth input waveguide line to which radio waves are input; a first waveguide resonator connected to the first input waveguide line and the second input waveguide line through an iris formed between H-planes; a second waveguide resonator connected to the third input waveguide line and the fourth input waveguide line through an iris formed between H-planes; a third waveguide resonator connected to the first waveguide resonator and the second waveguide resonator through an iris formed between H-planes; A waveguide type power combiner comprising:

[0088] (11) An antenna device comprising a waveguide type power splitter according to any one of (1) to (9) or a waveguide type power combiner according to (10).

[0089] (12) A radar equipped with the antenna device described in (11). [Explanation of symbols]

[0090] 1 Waveguide type power distributor (waveguide type power combiner), 2 block, 20 recess, 23 top surface, 25 bottom surface, 27 side surface, 3 cover, 40 input waveguide type line, 51-56 waveguide type resonator, 5a-5g iris, 61-68 output waveguide type line, 6a-6h iris, 71, 72 waveguide type resonator, 7a, 7b iris, 10 antenna device, 11 transmitting / receiving unit, 12 signal processing unit, 13 control unit, 100 radar

Claims

1. a first waveguide resonator to which an electromagnetic wave is input; a second waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes; a third waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes; a first output waveguide line connected to the second waveguide resonator through an iris formed between the H-planes; a second output waveguide line connected to the second waveguide resonator through an iris formed between the H-planes; a third output waveguide line connected to the third waveguide resonator through an iris formed between H-planes; a fourth output waveguide line connected to the third waveguide resonator through an iris formed between H-planes; A waveguide type power divider comprising:

2. further comprising an input waveguide line connected to the first waveguide resonator through an iris formed between the H-planes; 2. The waveguide type power splitter according to claim 1.

3. an H-plane of the first waveguide-type resonator to which the second waveguide-type resonator and the third waveguide-type resonator are connected is located on the opposite side to an H-plane of the first waveguide-type resonator to which the input waveguide-type line is connected; 3. The waveguide type power splitter according to claim 2.

4. an H-plane of the second waveguide-type resonator to which the first output waveguide-type line and the second output waveguide-type line are connected is located on the opposite side to an H-plane of the second waveguide-type resonator to which the first waveguide-type resonator is connected; 2. The waveguide type power splitter according to claim 1.

5. an H-plane of the third waveguide-type resonator to which the third output waveguide-type line and the fourth output waveguide-type line are connected is located on the opposite side to an H-plane of the third waveguide-type resonator to which the first waveguide-type resonator is connected; 2. The waveguide type power splitter according to claim 1.

6. the first waveguide-type resonator, the second waveguide-type resonator, the third waveguide-type resonator, the first output waveguide-type line, the second output waveguide-type line, the third output waveguide-type line, and the fourth output waveguide-type line have a common E-plane.

2. The waveguide type power splitter according to claim 1.

7. a block having recesses formed on one surface thereof, the recesses becoming the first waveguide resonator, the second waveguide resonator, the third waveguide resonator, the first output waveguide line, the second output waveguide line, the third output waveguide line, and the fourth output waveguide line; a cover that comes into contact with the one surface of the block and covers the recess; Further comprising:

2. The waveguide type power splitter according to claim 1.

8. Further comprising a fourth waveguide resonator connected to the first waveguide resonator through an iris formed between H-planes.

2. The waveguide type power splitter according to claim 1.

9. further comprising an input waveguide line connected to the fourth waveguide resonator through an iris formed between the H-planes; 9. The waveguide type power splitter according to claim 8.

10. a first input waveguide line to which radio waves are input; a second input waveguide line to which radio waves are input; a third input waveguide line to which radio waves are input; a fourth input waveguide line to which radio waves are input; a first waveguide resonator connected to the first input waveguide line and the second input waveguide line through an iris formed between H-planes; a second waveguide resonator connected to the third input waveguide line and the fourth input waveguide line through an iris formed between H-planes; a third waveguide resonator connected to the first waveguide resonator and the second waveguide resonator through an iris formed between H-planes; A waveguide type power combiner comprising:

11. An antenna device comprising the waveguide type power splitter according to claim 1 or the waveguide type power combiner according to claim 10.

12. A radar comprising the antenna device according to claim 11.

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