JP2000151263A - Waveguide branching circuit and antenna device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waveguide branching circuit which is easily miniaturized and mass-produced and is highly efficient. SOLUTION: A matching wall 5 extends perpendicularly from the top face J on a waveguide branching circuit that is parallel to a reference face I including each center axis of two waveguides 1-A and 1-B. The matching wall 5 is provided in parallel to the center axes of the two waveguides 1-A and 1-B. A rectangular connection window 4 whose longitudinal direction is perpendicular to the matching wall 5 is provided in a connection face K on the waveguide branching circuit 100 facing the top face J across the reference face I, and one opening part of a sub waveguide 3 is connected vertically to the connection face K so as to cover the connection window 4. Respective opening parts on the same side of the two waveguides 1-A and 1-B are mutually connected by a curved waveguide 2 whose inner face is a U shape and whose outer face is a crank shape, and the connection window 4 is provided in the connection face K on the curved waveguide 2. Due to the above configuration, power fed from the sub waveguide 3 is efficiently distributed to two branching paths (waveguides 1-A and 1-B) in reverse phase.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waveguide branch circuit for distributing or synthesizing electric power propagated by high frequency electromagnetic waves such as microwaves and millimeter waves, and a radiating element having a predetermined length in the waveguide longitudinal direction. The present invention relates to a waveguide array antenna for transmission or reception having array surfaces arranged at intervals.

[0002]

2. Description of the Related Art A waveguide branch circuit for distributing or synthesizing electric power propagated by electromagnetic waves in a high frequency band such as microwaves and millimeter waves, and radiating elements are arranged at predetermined intervals in the longitudinal direction of the waveguide. Known waveguide slot array antennas having an array surface include those described in "Japanese Unexamined Patent Application Publication No. 5-3405: Waveguide coupling structure". In these waveguide slot array antennas, a set of two waveguide slot array antennas are arrayed as a sub-array antenna, slot-shaped radiating elements are provided at predetermined intervals, and the width of the waveguide is reduced. The waveguides are joined so that the surfaces are in close contact with each other. For this reason, there has conventionally been a problem that the phase center interval between the sub-array antennas is larger than the free space wavelength λ _{0 of the} electromagnetic wave, and unnecessary radiation called grating lobe is generated.

FIG. 13 is a perspective view of a waveguide slot array antenna 900 according to another prior art. In this antenna 900, the waveguides are joined so that the wide surfaces of the waveguides are in close contact with each other, and a two-branch circuit 910 is provided for a pair of waveguide slot array antennas (sub-array antennas) 920.
More power is distributed and supplied. Therefore, this antenna 9
In the case of 00, unlike the case of the waveguide slot array antenna described in “Japanese Unexamined Patent Publication No. 5-3405: waveguide coupling structure”, the narrow surface of the waveguide is arranged with slot-shaped radiating elements 6. It has an array surface. Therefore, the antenna 90
0, the phase center interval S between the sub-array antennas 920
_y can be less than or equal to the free space wavelength λ ₀ of the electromagnetic wave. With this configuration, in this antenna 900, y
When the angle θ from the z axis on the z plane is “0 <θ ≦ π /
No grating lobe occurs in the direction of "2".

[0004]

However, when such an antenna is constructed, since the width of each waveguide in the y-axis direction is smaller than the width in the z-axis direction, the electric field is directed in the y-axis direction. Would. For this reason, the distribution and feeding means using a feeding probe (metal pin) and the distribution and feeding means using a T-shaped coupling slot described in “Japanese Unexamined Patent Application Publication No. 5-3405: Waveguide coupling structure” must be used. A new problem arises in that it is no longer possible.

Therefore, in the prior art, when power is supplied to the antenna 900 as shown in FIG. 13 from the back direction for every two waveguides, an E-plane splitter 91 as shown in FIG.
That is, a two-branch circuit 910, which is a power supply circuit combining the H-vent 1 and the H-plane vent 912, must be used. However, since such a two-branch circuit 910 has a complicated shape, mass production or miniaturization is difficult.

When the power is distributed and supplied by the two-branch circuit 910, the electromagnetic waves are supplied in the same phase to the two rows of waveguides that are distributed and supplied. Therefore, when the beam is directed in the z-axis direction, the x-axis It is necessary to match the arrangement period _Sx of the radiating elements 6 arranged in the direction with the wavelength λ ₁ in one waveguide of this electromagnetic wave. At this time, since “λ ₀ <λ ₁ = S _x ”, xz
There is a problem that grating lobes are generated in a direction in which the angle θ from the z axis on the plane satisfies the following expression (1).

Λ ₀ = S _x sin θ (0 <θ ≦ π / 2) (1)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to reduce the width of a waveguide in the y-axis direction, such as a waveguide array antenna 900, in the z-axis direction. An object of the present invention is to provide a waveguide branch circuit that can distribute and supply power to two waveguides whose width is equal to or less than the width in the direction and is easy in mass production and miniaturization, and has high energy efficiency. It is a further object of the present invention to provide an antenna that does not generate grating lobes in any direction.

[0008]

In order to solve the above-mentioned problems, the following means are effective. That is, the first means is a waveguide branch circuit that distributes the power supplied from the sub-waveguide to two waveguides arranged close to and parallel to each other. A matching wall parallel to the central axis, which extends perpendicularly from the ceiling plane on the waveguide branch circuit parallel to the reference plane including each central axis of the waveguide, and faces the ceiling plane with the reference plane interposed A substantially rectangular or substantially elliptical coupling window provided on a coupling surface on the waveguide branch circuit, the longitudinal direction of which is perpendicular to the matching wall; Is bonded to the bonding surface perpendicularly to the bonding surface so as to cover the surface.

A second means is the first means, wherein the U-shaped or U-shaped curved waveguide connecting the respective openings on the same side of the two waveguides to each other is provided. And distributing the power to the two branches by providing the coupling window on the coupling surface on the curved waveguide.

The third means is that, in the first means, the coupling window is provided on the coupling surface on the two waveguides.
The above-mentioned electric power is distributed to the four branch paths by providing the communication port on the surface where the two waveguides are joined and further provided over the two waveguides.

The fourth means has an array surface composed of a plurality of waveguides arranged close to each other and parallel to each other, in which radiating elements are arranged at predetermined intervals in the longitudinal direction of the waveguides. In the transmitting or receiving waveguide array antenna, the waveguide branch circuit according to any one of the first to third means is provided with a longitudinal waveguide on each of the two waveguides facing upward. Using a waveguide branch circuit in which two rows of radiating elements are arranged in parallel in the direction and the two rows of radiating elements are shifted from each other by approximately half the guide wavelength of electromagnetic waves that propagate power, The above is to form an array structure of the radiating elements. With the above means, the above-mentioned problem can be solved.

[0012]

In each of the first to fourth means of the present invention, the structure of the waveguide branch circuit is simple, and it can be easily constituted by a small number of parts having simple shapes. Thus, a waveguide branch circuit that can be easily mass-produced and miniaturized can be configured.

[0013] Further, since there is provided a matching wall extending perpendicular to the ceiling surface and parallel to the central axis, and a substantially rectangular or substantially elliptical coupling window whose longitudinal direction is perpendicular to the matching wall, FIG.
A waveguide branch circuit capable of distributing and feeding even two waveguides whose width in the y-axis direction is equal to or less than the width in the z-axis direction can be configured.

The height H of the matching wall with respect to the distance H ₀ between the ceiling surface and the coupling surface, the length A in the longitudinal direction of the coupling window with respect to the width A ₀ of the wide surface of the sub-waveguide, and By optimally adjusting each value of the width B _{0 of the} coupling window with respect to the width B _{0 of the} narrow surface of the waveguide, a waveguide branch circuit with high energy efficiency can be configured.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on specific embodiments. (First Embodiment) FIG. 1 shows perspective views (a) and (b) of a waveguide branch circuit 100 in this embodiment. The waveguide branch circuit 100 distributes the power supplied from the sub-waveguide 3 to two waveguides 1-A and 1-B which are arranged close to and parallel to each other. is there. These two waveguides 1-
A reference plane I including the respective central axes of A and 1-B is parallel to the xy plane, and the matching wall 5 extends vertically from a top surface J on the waveguide branch circuit parallel to the reference plane I. ing.

The matching wall 5 has two waveguides 1-1.
It is provided in parallel with the central axes of A and 1-B. On the other hand, the waveguide branch circuit 10 facing the top surface J with the reference surface I interposed therebetween.
The other plane on 0 is called the coupling plane K. On this coupling surface K,
A rectangular coupling window 4 whose longitudinal direction is perpendicular to the matching wall 5 is provided, and one opening of the sub-waveguide 3 is perpendicular to the coupling surface K so as to cover the coupling window 4. Are combined.

The two openings on the same side of the two waveguides 1-A and 1-B are connected to each other by a curved waveguide 2 having a U-shaped inner surface and a U-shaped outer surface. The coupling window 4 is provided on the coupling surface K on the curved waveguide 2. With the above configuration, the power supplied from the sub-waveguide 3 is distributed to the two branches (waveguides 1-A and 1-B).

FIGS. 2A and 2B are cross-sectional views of the waveguide branch circuit 100. FIG. In the present waveguide branch circuit 100, the height H of the matching wall 5 with respect to the distance H ₀ between the top surface J and the coupling surface K, and the coupling window 4 with respect to the width A ₀ of the wide surface of the sub-waveguide 3. longitudinal of and length a, or, by optimally adjusting the values such as the width B of the coupling window 4 to the width B ₀ of the narrow surface of Fukushirubeha tube 3, energy efficient waveguide It constitutes a branch circuit. That is, empirically through many experiments, by adjusting these values H, A, and B optimally, the power supplied from the sub-waveguide 3 is reduced to the two waveguides 1.
-A and 1-B can be equally distributed efficiently.

FIG. 3 shows the matching wall 5 of the waveguide branch circuit 100.
FIG. When the matching wall 5 is not provided, a part of the electromagnetic wave supplied to the curved waveguide 2 from the power supply port (not shown) via the sub-waveguide 3 The light is reflected by the facing surface J or the coupling surface K and returned to the power supply port (not shown). However, in the present waveguide branch circuit 100, the matching wall 5 is provided as shown in FIG. 3, and the height H is set so that the reflected waves in the figure cancel each other out of phase. Therefore, the power loss due to these reflected waves is greatly suppressed.

FIG. 4 shows a vertical section of the sub-waveguide 3 and the coupling window 4.
(A = A ₀ , B = B ₀ ), the reflection characteristics of the waveguide branch circuit 100 due to the height H of the matching wall 5 (relative to the reflection amount viewed from the sub-waveguide 3 side) (Value). As can be seen from this graph (FIG. 4), it can be seen that the reflection loss is reduced most when the value of H / H ₀ is around 0.2 to 0.4. That is, it is understood that the reflection characteristics can be improved by the action of the matching wall 5.

FIGS. 5 and 6 show the reflection characteristics (relative value of the reflection amount viewed from the sub-waveguide 3 side) depending on the length A and width B of the coupling window 4 of the waveguide branch circuit 100 in the longitudinal direction. It is a graph shown. By changing these dimensions A and B, an inductive component and a capacitive component are generated in the electromagnetic wave inside the sub-waveguide 3, respectively, and the imaginary part of the input impedance at the feeding point can be changed. .

Therefore, by optimizing the inductive component and the capacitive component, the reflection loss can be improved as shown in the figure. That is, FIG. 5 shows that the reflection loss decreases most when A = A ₀ . Also, FIG.
It shows that the reflection characteristic (relative value of the reflection amount viewed from the sub waveguide 3 side) becomes -20 dB or less when / B ₀ is around 0.6 to 0.7. The loss due to reflection at this time was 1% or less. That is, it is understood that the power loss is significantly improved by the effects of these optimizations.

FIG. 7 is a graph showing the reflection characteristics of the waveguide branch circuit 100 designed with the frequency of the electromagnetic wave propagating the electric power as f ₀ according to the frequency f of the actual electromagnetic wave supplied from the power supply port (not shown). is there. In this graph (FIG. 7), each dimension of the waveguide branch circuit 100 is represented by A / A ₀ = 1,
Assuming that B / B ₀ = 0.63 and H / H ₀ = 0.39, the reflection characteristics (relative value of the amount of reflection as viewed from the sub-waveguide 3 side) were measured. According to this graph, in the vicinity of f = f ₀ , the reflection characteristic (the relative value of the reflection amount viewed from the sub-waveguide 3 side) is −20d.
It turns out that it becomes B or less. The loss due to reflection at this time was 1% or less.

Under these conditions, the amount of transmission from the sub-waveguide 3 to each of the waveguides 1-A and 1-B is-
It has been found that the distribution is ideally equal to 3 dB with little loss. The phase of the electromagnetic wave equally distributed to the waveguides 1-A and 1-B is opposite to the opposite phase because the matching wall 5 and the coupling window 4 are orthogonal as shown in FIG. Become.

The matching wall 5 does not necessarily have to be on the boundary between the waveguide 1-A and the waveguide 1-B. Matching wall 5
By moving in parallel in the y-axis direction in FIG. 1B, it is possible to configure a non-equal distribution waveguide branch circuit.

(Second Embodiment) FIGS. 8A and 8B are perspective views of the antenna devices 102 and 101 of the present embodiment.
In these antenna devices, the radiation element 6 which is a slot-shaped or substantially circular hole is provided on the top surface J of the waveguide branch circuit 100 of the first embodiment. That is, the antenna devices 102 and 101 each include a waveguide slot array having an array surface (top surface J) in which the radiation elements 6 are arranged at predetermined intervals in the longitudinal direction of the waveguides 1-A and 1-B. The antenna devices 102 and 1
Reference numeral 01 denotes a total of two rows of radiating elements 6 in the longitudinal direction of the waveguide on the top surface J side of each of the two waveguides 1-A and 1-B of the waveguide branch circuit 100. The radiating elements 6 are arranged in parallel with each other, and the two radiating elements 6 are arranged so as to be shifted from each other by about a half guide wavelength of an electromagnetic wave transmitting electric power.

As described above, the antenna devices 102 and 1
01, the arrangement of the radiating elements 6 of the waveguides 1-A and 1-B is shifted from each other by approximately １ ／ the guide wavelength of the electromagnetic wave. This is because the phases of the distributed electromagnetic waves are opposite to each other (shifted by π [rad]).

FIG. 9 is a graph showing the directivity of the antenna device 101. As described above, the arrangement period S _x of the radiating elements 6 arranged in the x-axis direction in the x-axis direction can be made to match the wavelength in the half-waveguide of the electromagnetic wave propagating the power. In 101, no grating lobe is generated in an arbitrary direction where the angle θ from the z-axis is “0 <θ ≦ π / 2” on the xz plane. This is because, in the above case, the array period S _{x in the} x-axis direction is
This is because the wavelength of the electromagnetic wave propagating electric power in the free space is λ ₀ or less.

For comparison, FIG. 15 is a graph showing the directivity of a conventional waveguide slot array antenna 901. For example, the antenna 90
In FIG. 1, a two-branch circuit 91 is connected to two waveguides 1-A and 1-B.
0 (FIG. 14), since in-phase power is supplied, θ = π /
A grating lobe occurs in the direction of 3 (± 60 °).

(Third Embodiment) FIG. 10 is a perspective view of a waveguide branch circuit 200 in this embodiment. The present waveguide branch circuit 200 provides a sub-waveguide for two waveguides 1-A (1-A ') and 1-B (1-B') arranged close to and parallel to each other. The power supplied from the tube 3 is distributed. A reference plane I including the respective central axes of the two waveguides 1-A and 1-B is parallel to the xy plane, and a top plane J on a waveguide branch circuit parallel to the reference plane I. Thus, the alignment wall 5 extends vertically.

The matching wall 5 is formed of two waveguides 1- 1
It is provided in parallel with the central axes of A and 1-B. On the other hand, the waveguide branch circuit 10 facing the top surface J with the reference surface I interposed therebetween.
The other plane on 0 is called the coupling plane K. On this coupling surface K,
A rectangular coupling window 4 whose longitudinal direction is perpendicular to the matching wall 5 is provided, and one opening of the sub-waveguide 3 is perpendicular to the coupling surface K so as to cover the coupling window 4. Are combined.

The coupling window 4 includes two waveguides 1-A,
A coupling surface K on 1-B is provided astride the two waveguides. Also, on the surface where the two waveguides are joined,
A communication port 7 is provided. With the above configuration, the electric power supplied from the sub waveguide 3 is divided into four branch paths (1-A, 1
-B, 1-A ', 1-B').

FIGS. 11A and 11B are sectional views (a) and (b) of the waveguide branch circuit 200. FIG. In the present waveguide branch circuit 200, the height H of the matching wall 5 with respect to the distance H ₀ between the facing surface J and the coupling surface K, and the coupling window 4 with respect to the width A ₀ of the wide surface of the sub-waveguide 3. longitudinal of and length a, or, by optimally adjusting the values such as the width B of the coupling window 4 to the width B ₀ of the narrow surface of Fukushirubeha tube 3, energy efficient waveguide It constitutes a branch circuit. That is, the waveguide branch circuit 100
As in the case of (1), by adjusting these values H, A, and B optimally, the power supplied from the sub-waveguide 3 can be reduced to four branches (1-A, 1) of the two waveguides. -B, 1-A ',
1-B ').

The waveguides 1-A (1-A '), 1-B
The phase of the electromagnetic wave equally distributed to (1-B ') is
11 and the coupling window 4 are orthogonal to each other as shown in FIG. The matching wall 5 does not necessarily need to be on the boundary between the waveguide 1-A (1-A ') and the waveguide 1-B (1-B'). By moving the matching wall 5 in parallel in the y-axis direction in FIG. 10, it becomes possible to configure a waveguide branch circuit of unequal distribution.

(Fourth Embodiment) FIGS. 12A and 12B are a perspective view of an antenna device 300 of the present embodiment and a perspective view of an antenna device 202 constituting a part of the antenna device 300. In the present antenna device 300, seven antenna devices 202 are arranged in parallel in a direction close to each other as shown in FIG. The antenna device 202 has a radiating element 6 which is a slot-shaped hole provided on the top surface J of the waveguide branch circuit 200 of the third embodiment.

That is, the antenna device 202 includes the radiating element 6
Is a waveguide slot array antenna having an array surface (top surface J) arranged at predetermined intervals in the longitudinal direction of the waveguides 1-A (1-A ') and 1-B (1-B'). In this case, the antenna device 202 is provided on each of the two waveguides 1 -A (1 -A ′) and 1 -B (1 -B ′) of the waveguide branch circuit 200 on the top surface J side. A total of two rows of radiating elements 6 are arranged in parallel in the longitudinal direction of the waveguide, and the two rows of radiating elements 6 are further shifted from each other by approximately 1/2 the guide wavelength of electromagnetic waves that propagate power. It consists of.

As described above, in the antenna device 202, the waveguide 1-A (1-A ') and the waveguide 1-B (1-A')
The arrangement of the radiating elements 6 in B ′) is shifted from each other by approximately 内 the guide wavelength of the electromagnetic wave, because the phases of the electromagnetic waves distributed from the sub-waveguide 3 to both waveguides are opposite to each other ( π
This is because it is shifted by [rad].

As described above, the arrangement period S _x of the radiating elements 6 arranged in the x-axis direction in the x-axis direction can be made to coincide with the half-waveguide wavelength of the electromagnetic wave propagating electric power. In the present antenna device 202 and the antenna device 300, similarly to the antenna device 101, grating lobes do not occur in any direction where the angle θ from the z-axis is “0 <θ ≦ π / 2” on the xz plane. .

In each of the above embodiments, although not particularly mentioned, the interior of the waveguide may be filled with a dielectric or the like.

The arrangement interval of the radiating elements 6 in one row in the longitudinal direction (x-axis direction) of one waveguide does not necessarily have to match the wavelength in the waveguide. When the beam direction of the supplied electromagnetic wave deviates from the z-axis direction,
The arrangement interval of the radiating elements 6 in one row in the x-axis direction is different from the wavelength in the waveguide.

Further, the waveguide branch circuit of each of the above embodiments can be used as a waveguide coupling circuit. Therefore, each of the antenna devices of the above embodiments can be used as a receiving antenna device.

[Brief description of the drawings]

FIGS. 1A and 1B are perspective views of a waveguide branch circuit according to a first embodiment.

FIGS. 2A and 2B are cross-sectional views of a waveguide branch circuit according to a first embodiment.

FIG. 3 is an explanatory diagram illustrating an operation of the waveguide branch circuit according to the first embodiment.

FIG. 4 is a graph showing reflection characteristics depending on the height of a matching wall of the waveguide branch circuit according to the first embodiment.

FIG. 5 is a graph showing a reflection characteristic depending on a dimension A of a coupling window of the waveguide branch circuit according to the first embodiment.

FIG. 6 is a graph showing reflection characteristics depending on a dimension B of a coupling window of the waveguide branch circuit according to the first embodiment.

FIG. 7 is a graph showing the reflection characteristics according to the frequency of the waveguide branch circuit according to the first embodiment.

8A and 8B are perspective views of an antenna device according to a second embodiment.

FIG. 9 is a graph showing the directivity of the antenna device according to the second embodiment.

FIG. 10 is a perspective view of a waveguide branch circuit according to a third embodiment.

11A and 11B are cross-sectional views of a waveguide branch circuit according to a third embodiment.

FIGS. 12A and 12B are perspective views of an antenna device according to a fourth embodiment.

FIG. 13 is a perspective view of a conventional waveguide slot array antenna.

FIG. 14 is a perspective view of a waveguide branch circuit according to the related art.

FIG. 15 is a graph showing the directivity of a conventional waveguide slot array antenna.

[Explanation of symbols]

1-A, 1-B ... Waveguide 2 ... Curved waveguide 3 ... Subwaveguide 4 ... Coupling window 5 ... Matching wall 6 ... Radiating element 7 ... Communication port I ... Reference surface J ... Top surface K ... longitudinal length of the distance a ... coupling window between the coupling surface a ₀ ... narrow face width H ₀ ... top toward surfaces of the width B ₀ ... sub waveguide wide plane of the sub-wave tube and the coupling surface B: width of coupling window H: height of matching wall

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiaki Watanabe 41-Cho, Yokomichi, Nagakute-cho, Aichi-gun, Aichi Prefecture Inside Toyota Central Research Laboratory Co., Ltd. No. 41, Changchun Yokomichi 1 Toyota Central Research Laboratory Co., Ltd. F-term (reference) 5J021 AA05 AA09 AA11 AB05 CA02 DB03 FA05 FA34 GA05 GA08 HA01 JA07 5J045 AA05 AA26 AB05 BA02 DA04 EA06 FA04 FA05 GA03 HA01 LA01

Claims (4)

[Claims] 1. A waveguide branch circuit for distributing power supplied from a sub-waveguide to two waveguides arranged close to and parallel to each other, wherein said two waveguides are provided. A matching wall parallel to the central axis and extending perpendicularly from a ceiling surface on the waveguide branch circuit parallel to the reference plane including each central axis of the waveguide; and the ceiling surface sandwiching the reference plane. A substantially rectangular or substantially elliptical coupling window whose longitudinal direction is perpendicular to the matching wall, the coupling window being provided on a coupling surface on the waveguide branch circuit facing the sub-waveguide; The waveguide branch circuit, wherein the portion is coupled to the coupling surface perpendicularly to the coupling surface so as to cover the coupling window. 2. A curved waveguide having a U-shape or a U-shape that connects respective ports on the same side of the two waveguides, wherein the coupling window is a curved waveguide. 2. The waveguide branch circuit according to claim 1, wherein the power is provided on an upper coupling surface, and the power is distributed to two branches. 3. 3. The coupling window is provided on a coupling surface on the two waveguides so as to straddle the two waveguides, and is provided on a surface where the two waveguides are joined. The waveguide branch circuit according to claim 1, wherein a communication port is provided, and the power is distributed to four branch paths. 4. A radiating element comprising a plurality of waveguides arranged close to and parallel to each other, wherein the radiating element has an array surface arranged at predetermined intervals in the longitudinal direction of the waveguide for transmitting or receiving. The waveguide array antenna according to any one of claims 1 to 3, wherein the two waveguides of the waveguide branch circuit according to any one of claims 1 to 3 are arranged in the longitudinal direction of each of the two waveguides. A waveguide branch, wherein a total of two rows of radiating elements are arranged in parallel, and the two rows of radiating elements are shifted from each other by approximately half the guide wavelength of the electromagnetic wave propagating the power. An antenna device, wherein an array structure of the radiating elements is formed using a circuit.