JPH07106835A - Planar antenna system for reception and building material - Google Patents

Abstract

PURPOSE:To simply and surely install the planar antenna system without much time. CONSTITUTION:The system is provided with a rectangular antenna element 1, midpoints of a couple of sides opposite to each other in the antenna element 1 are used for a couple of feeding points 4a, 4b, respectively, and the feeding points 4a, 4b are connected to a receiver via a feeding conductor. The antenna system main body 29 having the antenna element 1 and the feeding conductor is provided to building materials such as a roof member and a wall material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving planar antenna device and a building material.

[0002]

2. Description of the Related Art Currently, Yagi-Uda antenna is widely used as a TV receiving antenna device, but in some heavy snow areas, the receiving antenna device is damaged and deteriorates in performance due to snowfall, resulting in reception failure. . Therefore, in order to realize an antenna device that is less likely to be damaged by snow, a planar antenna device that can be installed under the eaves has been proposed. This antenna device is used by amateur radio operators and the like as having the same performance as the widely used Yagi-Uda antenna.

As shown in FIG. 21, the above-mentioned planar antenna device is provided with a plurality of rectangular antenna elements 51 arranged side by side on the same plane. Are a pair of feeding points 52a and 52b, respectively. Corresponding feeding points 52 of adjacent antenna elements 51
a and 52b are connected to each other by a pair of first feeding conductors 53a and 53b, respectively, whereby adjacent antenna elements 51 are connected.
A plurality of antenna units 54 are formed by combining them. Then, the corresponding middle portions of the first feeding conductors 53a and 53b of the adjacent antenna units 54 are connected by the pair of second feeding conductors 55a and 55b, respectively, and the middle portions of the pair of second feeding conductors 55a and 55b are connected. Are connected to the receiver side by a pair of third feeding conductors 56a and 56b, respectively.

[0004]

However, since the conventional planar antenna device is provided separately from the building material such as the roof material or the wall material, the planar antenna device is installed under the eaves or the roof. In this case, it is necessary to securely fix the planar antenna device to the roof material or wall material so that it will not be peeled off or misaligned at the construction site. I spent a lot of time.

In view of the above problems, the present invention is to make it possible to construct a planar antenna device easily and surely without requiring time.

[0006]

The first technical means of the present invention for solving this technical problem is provided with a rectangular antenna element 1, and a pair of opposite side portions of the antenna element 1 are provided. In the planar antenna device for reception in which the midpoints are a pair of feeding points 4a and 4b, and the feeding points 4a and 4b are connected to the receiver side via a feeding conductor, the antenna element 1 and the feeding conductor are provided. Antenna device main body 29 having
However, it is provided on building materials such as roofing materials and wall materials.

A second technical means of the present invention is that a rectangular antenna element 1 having a pair of long side portions 2a and 2b and a pair of short side portions 3a and 3b is a pair of long side portions 2a and 2b. Are arranged in parallel in parallel and a plurality of them are arranged side by side on the same plane so that the short side portions 3a and 3b are spaced at predetermined intervals. Each antenna element 1 has a pair of feeding points 4a and 4b, and adjacent antenna elements 1 have a pair of feeding points 4a and 4b so as to form a plurality of antenna units 7. The first feeding conductors 6a and 6b are connected to each other, and the corresponding middle portions of the first feeding conductors 6a and 6b of the adjacent antenna units 7 are connected to each other by the pair of second feeding conductors 10a, 10b, 11a and 11b, respectively. The pair of Two feed conductor 10a, 10b, 11
The middle part of a, 11b is a pair of third feeding conductors 13a, 13
In the receiving planar antenna device connected to the receiver side by b, 14a, and 14b, respectively, the antenna device body 29 having the antenna element 1 and the feeding conductor is a roof member,
The point is that it is provided in building materials such as wall materials.

A third technical means of the present invention is to equip a building material body such as a roofing material body or a wall material body with a rectangular antenna element 1 and in the middle of a pair of opposing side portions of the antenna element 1. The point is that a planar antenna device for reception, which has a pair of feeding points 4a and 4b, is provided.

[0009]

The antenna device main body 29 is provided on the surface of a building material such as a roof material and a wall material, and the planar antenna device and the building material are integrally formed. In order to install it on a building or the like, it is only necessary to set the building material at a predetermined position, and it is not necessary to fix the planar antenna device to the roof material or the wall material at the construction site.

[0010]

The present invention will be described below with reference to the illustrated embodiments. In FIG. 1, 1 is a rectangular antenna element having a pair of long side portions 2a and 2b and a pair of short side portions 3a and 3b. Four antenna elements 1 are provided on the same plane,
The pair of long side portions 2a and 2b are sequentially arranged in parallel and the short side portion 3
They are arranged side by side in the a and 3b directions with a predetermined interval. The midpoints of the long sides 2a and 2b of each antenna element 1 which face each other are respectively defined as a pair of feeding points 4a and 4b. If the wavelength of the received radio wave is λ, for example, a pair of long side portions 2
The lengths of a and 2b are 0.50λ and the pair of short side portions 3a and 3b.
Is set to 0.27λ.

Reference numerals 6a and 6b denote a pair of first feeding conductors, which connect the corresponding feeding points 4a and 4b of adjacent antenna elements 1 to each other, thereby forming an antenna unit 7 formed by combining the adjacent antenna elements 1 with each other. Two are formed.
Each of the first feeding conductors 6a and 6b has feeding bases 8a and 8b protruding inward from the feeding points 4a and 4b and U-shaped feeding bodies 9a and 9b.

Numerals 10a, 10b, 11a and 11b are a pair of second feeding conductors provided in two sets, and connect the corresponding middle portions of the first feeding conductors 6a and 6b of the adjacent antenna units 7, respectively. . The connecting position of the pair of second feeding conductors 10a, 10b to the first feeding conductors 6a, 6b is the central portion of the first feeding conductors 6a, 6b. The connection position of the other pair of the second feeding conductors 11a, 11b to the first feeding conductors 6a, 6b is the first feeding conductor 6a,
6b are displaced in the same direction from the center of 6b by a dimension δA.

Reference numerals 13a, 13b, 14a and 14b are a pair of third feeding conductors provided in two sets, and the second feeding conductor 10a,
10b or the middle portions of the second power supply conductors 11a and 11b are connected to the receiver side, respectively. A pair of third feeding conductors 1
One end of 3a, 13b is the second power supply conductor 11a, 11b.
Is connected to the middle part and the other end is a pair of power feeding parts 16a and 16b for connecting to the receiver side. One end of the pair of third feeding conductors 14a and 14b is the second feeding conductor 1
2a and 12b are connected to the middle part, and the other end is a pair of power supply parts 17a and 17b for connecting to the receiver side.

The pair of third feeding conductors 13 of one set
The connection position of a, 13b to the second power supply conductors 10a, 10b is the central portion of the second power supply conductors 10a, 10b. The connection position of the other pair of the third power feeding conductors 14a and 14b to the second power feeding conductors 11a and 11b is the second power feeding conductor 11
They are displaced from the central portions of a and 11b by the dimension δB in the same direction.

As described above, the connecting position of the pair of second power feeding conductors 10a, 10b to the first power feeding conductors 6a, 6b is the central portion of the first power feeding conductors 6a, 6b, and one of the pair is connected. The connection position of the pair of third feeding conductors 13a, 13b to the second feeding conductors 10a, 10b is
Since they are at the central portions of a and 10b, the lengths of the feeding conductors from the feeding points 4a and 4b of each antenna element 1 to the feeding portions 16a and 16b are the same.

The dimension δB is set to be twice as long as the dimension δA. Therefore, the feeding point 4 of each antenna element 1
The lengths of the power feeding conductors from a, 4b to the power feeding portions 17a, 17b are sequentially different by a dimension δB. That is, feeding point 4
From the antenna elements 1 on the left side to L1, L2, L3, L, the lengths of the feeding conductors from a, 4b to the feeding portions 17a, 16b are
4, L1 = L + 3 × δB L2 = L + 2 × δB L3 = L + δB L4 = L.

In the illustrated example of FIG. 1, the first feeding conductor 6
The lengths of a and 6b in the vertical direction are sequentially different, but this is merely shown so that the connection relationship of the power feeding conductors can be easily understood. Actually, the lengths of the first power feeding conductors 6a and 6b in the vertical direction are shown. Both are the same, and therefore the first feeding conductor 6
The second power supply conductor sides of a and 6b are in a state of being overlapped with each other. Similarly, the second power supply conductors 10a, 10b, 11
Although the vertical lengths of a and 11b are also sequentially different, in reality, the respective second power supply conductors 10a, 10b, 11a and 11b have the same vertical length, and therefore, the respective second power supply conductors 10a. , 10b, 11a, and 11b, the third power supply conductor side is in a state where they are overlapped with each other.

The feeding point 4a of each antenna element 1 is
Since the lengths of the power feeding conductors from 4b to the power feeding portions 16a, 16b are the same, the antenna element 1 is provided through the pair of third power feeding conductors 13a, 13b (power feeding portions 16a, 16b). Is connected to the receiver side, the beam directivity angle of the antenna device becomes vertical (direction with an angle of 0 °) as shown in FIG. In addition, the lengths of the feeding conductors from the feeding points 4a and 4b of each antenna element 1 to the feeding portions 17a and 17b are sequentially different by the dimension δB, so that the other pair of the third feeding conductors 14a is formed. , 14
When the antenna element 1 is connected to the receiver side via b (feeding parts 17a and 17b), the antenna elements 1 are arranged from the vertical direction (direction of angle 0 °) as shown in FIG. The angle δ (= 30 °) can be swung in the direction.

The relationship between the dimension δB and the angle δ is as follows. δB = Dsin (δ) where D is the width of the positional deviation between the adjacent antenna elements 1. The antenna element 1, the pair of first feeding conductors 6a, 6
b, a pair of second feeding conductors 10a, 10b, 11a, 11
b and a pair of third feeding conductors 13a, 13b, 14a, 1
4b is applied to a plurality of sheet materials, and the plurality of sheet materials are laminated to form an antenna element 1, a pair of first feeding conductors 6a and 6b, a pair of second feeding conductors 10a and 10b,
11a, 11b and a pair of third feeding conductors 13a, 13
An antenna device body 29 having b, 14a and 14b is formed.

That is, as shown in FIG. 3, the antenna element 1 and the feeding bases 8a and 8b of the first feeding conductors 6a and 6b are provided.
Is applied to the surface of the sheet material 18 by applying a conductive paint or attaching a conductive tape, and the power feeding body 9a of the first power feeding conductor 6a is electrically conductive on the surface of the sheet material 19 as shown in FIG. Applied by applying a conductive paint or attaching a conductive tape, and the second power feeding conductor 10a and the third power feeding conductor 13a are applied to the surface of the sheet material 20 with a conductive coating or a conductive tape as shown in FIG. And the power supply main body 9b of the first power supply conductor 6b as shown in FIG.
Is applied to the surface of the sheet material 21 by applying a conductive paint or attaching a conductive tape, and the second power feeding conductor 10b and the third power feeding conductor 13b are applied to the surface of the sheet material 21 as shown in FIG. , A conductive paint is applied or a conductive tape is attached, and the second power feeding conductor 11a and the third power feeding conductor 14a are applied to the surface of the sheet material 23 by applying the conductive coating or conducting as shown in FIG. 9 is applied by applying a conductive tape, and as shown in FIG. 9, the second power feeding conductor 11b and the third power feeding conductor 14b are applied on the surface of the sheet material 24 by applying a conductive paint or pasting a conductive tape. ing. Each sheet material 18, 19, 20, 21, 22,
23 and 24 are made of a transparent, semi-transparent or opaque acrylic resin or the like, and are sequentially laminated as shown in FIG. 10 to form an antenna device body 29. The thickness of the antenna device body 29 is about 1 to 3 mm.

The plurality of sheet materials 18, 19, 20, 2
The antenna element 1 between 1, 22, 23 and 24, the pair of first feeding conductors 6a and 6b, the pair of second feeding conductors 10a,
10b, 11a, 11b and a pair of third feeding conductors 13
As shown in FIG. 11, a, 13b, 14a, 14b is electrically connected by a plurality of sheet materials 17, 18, 19, 20, 2.
It is made up of a plurality of conductive pins 25 which are inserted into the connector 1.

That is, the plurality of sheet materials 18, 19, 2
0, 21, 22, 23, 24, each sheet material 18, 1
Through holes 26 provided in 9, 20, 21, 22, 23, 24
The cylindrical conductive pin 25 is inserted through the sheet material of the conductive pin 25, and the sheet material 18, 19, 20, 21, 21, 2, 2 of the conductive pin 25 is inserted.
Both end portions 27, 28 projecting outward from 3, 24 are saw-toothed in the circumferential direction, and the both end portions 27, 28 of the sheet materials 18, 19, 20, 21, 22, 23, 24 are formed. The plurality of sheet materials 18, 19, 20, 21, 21, 23, 2 are folded back to the outer peripheral side so as to bite into the edge of the through hole 26.
4 is crimped, and both ends 27, 2 of the conductive pin 25 are
8 multiple sheet materials 18, 19, 20, 21, 22, 22
Antenna element 1 between 3 and 24, pair of first feeding conductors 6
a, 6b, a pair of second feeding conductors 10a, 10b, 11
a, 11b and a pair of third feeding conductors 13a, 13b, 1
4a and 14b are electrically connected.

Specifically, in this embodiment, the conductive pin 2 is used.
Eighteen pieces 5 are provided, and the conductive pins 25 are provided at four positions, that is, the tip of the feeding base 8a of the sheet material 18 and the tip of the feeding body 9a of the sheet material 19, and the tip of the feeding base 8b of the sheet material 18 and the sheet material. 21 at four points with the tip of the power feeding body 9b, two points at the midpoint of the power feeding body 9a of the first power feeding conductor 6a of the sheet material 19 and the tip of the second power feeding conductor 10a of the sheet material 20, the first power feeding conductor 6a of the sheet material 19. Of the power feeding main body 9a and the tip of the second power feeding conductor 11a of the sheet material 23, the midway portion of the power feeding body 9b of the first power feeding conductor 6b of the sheet material 21 and the tip of the second power feeding conductor 10b of the sheet material 22. Two locations, that is, the midway portion of the power feeding body 9b of the first power feeding conductor 6b of the sheet material 21 and the tip of the second power feeding conductor 11b of the sheet material 24 are connected to each other.

As shown in FIGS. 1 and 2, the antenna device main body 29 having the antenna element 1 and the feeding conductor is bonded to the lower surface of the roof member 31 with an adhesive or the like. According to the configuration of the above embodiment, when the antenna element 1 is connected to the receiver side via the pair of the third feeding conductors 13a and 13b, the beam directivity angle of the antenna is oriented in the vertical direction of the antenna device. When the antenna element 1 is connected to the receiver side through the other pair of the third feeding conductors 14a and 14b, the beam directivity angle of the antenna device swings from the vertical direction to the direction in which the antenna elements 1 are arranged by an angle δ. . Therefore, when the antenna device is installed, the third feeding conductors 13a, 13b, 14a, 14b connected to the receiver side are installed.
By selecting, and installing the planar antenna device upside down so that it is turned upside down, or by installing it upside down, you can change the beam pointing angle of the antenna device. It is possible to bring the directivity angle closer to the transmitting station side with finer precision.

When the planar antenna device is actually installed, the third feeding conductor 13a connected to the receiver side,
13b or the third feeding conductors 14a and 14b are selectively selected, and the selected feeding portions 16a and 16b or the feeding portion 1 are selected.
Only one of 7a and 17b is connected to the receiver. The other power supply unit 17a, 17b or the power supply unit 16a not selected
The second feeding conductor and the third feeding conductor on the side of 16b are connected to the first feeding conductors 6a, 6 so that they do not adversely affect reception.
It is necessary to disconnect from b. For example, the power supply unit 16
When connecting a and 16b to the receiver, the sheet material 19
Of the first power feeding conductor 6a of the power feeding body 9a and the sheet material 2
Conductive pin 2 for connecting the tip of the second feeding conductor 11a of No. 3
5 and the power feeding body 9b of the first power feeding conductor 6b of the sheet material 21.
The conductive pin 25 connecting the midway portion and the tip of the second feeding conductor 11b of the sheet material 24 is extracted from the planar antenna device, and the first feeding conductors 6a and 6b are connected to the second feeding conductor 11.
It is sufficient to cut a and the second power supply conductor 11b. When connecting the power feeding parts 17a and 17b to the receiver, the conductive pin 25 that connects the midway part of the power feeding body 9a of the first power feeding conductor 6a of the sheet material 19 and the tip of the second power feeding conductor 10a of the sheet material 20. And the conductive pin 25 that connects the midway portion of the power feeding body 9b of the first power feeding conductor 6b of the sheet material 21 and the tip of the second power feeding conductor 10b of the sheet material 22 to the first planar power feeding device. The second feeding conductor 10a and the second feeding conductor 10b may be cut from the conductors 6a and 6b.

The method of cutting the second and third power feeding conductors on the non-selected side from the first power feeding conductors 6a and 6b is not only the extraction of the conductive pin 25 but also cutting by a cutter or being provided in advance. The switch may be used to disconnect. 13 and 14 show another embodiment,
The antenna device main body 29 having the antenna element 1 and the feeding conductor is adhered to the inner surface of the wall member 32 with an adhesive or the like. The other points are the same as those of the above-described embodiment.

FIGS. 15 to 17 show another embodiment, in which the lower surface of the roof member 31 (the inner surface of the wall member 32 may be used).
In addition, the antenna element 1, the pair of first feeding conductors 6a and 6b,
A pair of second feeding conductors 10a, 10b, 11a, 11b and a pair of third feeding conductors 13a, 13b, 14a, 14b
Are directly applied by applying a conductive paint or attaching a conductive tape, and the antenna element 1 and the first feeding conductor 6
a, 6b, second feeding conductors 10a, 10b, 11a, 11
Insulating material 30 such as an insulating sheet or insulating paint is interposed at a portion where b and the third feeding conductors 13a, 13b, 14a, 14b intersect or overlap. The other points are the same as those of the above-mentioned embodiment.

FIG. 18 shows another embodiment, in which one rectangular antenna element 1 is provided, and a pair of opposing long side portions 2a, 2b of the antenna element 1 are respectively provided with a pair of feeding points 4a, 4b. 4b, and the feeding points 4a and 4b are connected to the feeding conductor 6
The connection is made to the receiver side via a and 6b.
Each of the power feeding conductors 6a and 6b has power feeding bases 8a and 8b protruding inward from the power feeding points 4a and 4b and U-shaped power feeding bodies 9a and 9b, and tip portions of the power feeding bodies 9a and 9b. A pair of power supply parts 16a for connecting to the receiver side,
16b.

Then, as shown in FIG. 19, the antenna element 1 and the feeding bases 8a of the first feeding conductors 6a and 6b,
8b is applied to the surface of the sheet material 18 by applying a conductive paint or pasting a conductive tape, and as shown in FIG. 20, the power feeding body 9a of the first power feeding conductor 6a is the sheet material 1
The antenna device main body 29 is formed by applying a conductive paint or pasting a conductive tape on the surface of the sheet 9 and stacking the sheet materials 18 and 19. Other points are the same as those of the above-described embodiment, and although not shown in the drawings, the antenna device main body 29 having the antenna element 1 and the feeding conductor is the lower surface of the roof material 31 or the outer wall material like the embodiment. It is adhered to the inner surface of 32 with an adhesive or the like.

In the above embodiment, the beam directivity angle of the antenna device can be swung by an angle of 0 ° and 30 °, but the beam swivel angle of the antenna device is not limited to these angles. When the antenna element 1 is connected to the receiver side via the pair of the third feeding conductors 13a and 13b, the beam directivity angle of the antenna is 1
Deflection by 5 °, the other pair of the third feeding conductors 14
When the antenna element 1 is connected to the receiver side via a and 14b, the beam directivity angle of the antenna device may be swung by an angle of 45 °.

Further, in the above embodiment, the antenna device main body 29 having the antenna element 1 and the feeding conductor is the roof member 3
1 is bonded to the lower surface of the outer wall member 1 or the inner surface of the outer wall member 32 with an adhesive or the like. Instead of this, the antenna device main body 29 having the antenna element 1 and the feeding conductor is attached to the roof member 31.
May be adhered to the upper surface of the outer wall member 32 or the outer surface of the outer wall member 32 with an adhesive or the like, and the antenna device main body 29 may be fixed to the roof member 31 or the outer wall member 32 with screws or other fasteners. May be.

Further, in the above embodiment, the pair of long side portions 2
In a rectangular antenna element 1 having a and 2b and a pair of short side portions 3a and 3b, a pair of long side portions 2a and 2b are sequentially arranged in parallel and a predetermined distance is provided in the short side portions 3a and 3b. Further, a plurality of antenna elements 1 are arranged side by side on the same plane, and the midpoints of the facing long sides 2a and 2b of each antenna element 1 are respectively defined as a pair of feeding points 4a and 4b. A plurality of elements 1 may be arranged on the same plane such that a pair of short side portions 3a and 3b are sequentially arranged in parallel and a predetermined distance is provided in the long side portions 2a and 2b, or they may be opposed to each other. The middle portions of the short sides 3a and 3b may be a pair of feeding points 4a and 4b, respectively.

Further, in the above-described embodiment, two pairs of the second power feeding conductors 10a, 10b, 11a, 11b and two pairs of the third power feeding conductors 13a, 13b, 14a, 14b are provided in pairs, but instead of this, Only one pair of the second feed conductors 10a and 10b and one set of the third feed conductors 13a and 13b may be provided, or a pair of the second feed conductors and a pair of the third feed conductors may be provided. You may make it provide three or more sets of electric power feeding conductors.

Although the antenna device main body 29 is provided on the surface of the building material in the above-described embodiment, the antenna device main body 29 may be provided on the back surface or the inside of the building material instead. In addition, each sheet material 18, 19, 20, 2
1 and the like, the antenna element 1, a pair of first feeding conductors 6a, 6b, a pair of second feeding conductors 10a, 10b, 1
1a, 11b and a pair of third feeding conductors 13a, 13b,
The combination of 14a and 14b is not limited to the case of the above embodiment, and various combinations are conceivable.

In the description of the above embodiments, the antenna device main body 29 having the antenna element 1 and the feeding conductor is provided on the surface of the building material such as the roof material 31 or the wall material 32. From a different point of view, on the surface of the building material body such as the roof material body 31 or the wall material body 32, the rectangular antenna element 1 is provided, and a pair of intermediate side portions of the pair of opposite side edges of the antenna element 1 are provided. Feeding points 4a, 4b
It can be considered that the receiving planar antenna device 29 is provided, and the building material is constituted by the building material main body and the receiving planar antenna device 29 provided on the surface thereof.

[0036]

According to the present invention, the antenna device main body 29 having the antenna element 1 and the feeding conductor is provided on the surface of a building material such as a roofing material or a wall material to form a receiving planar antenna device. In addition, a rectangular antenna element 1 is provided on the surface of a building material body such as the roof material body 31 and the wall material body 32, and the midpoints of a pair of opposing side edges of the antenna element 1 are respectively a pair of feeding points 4a. , 4b, the receiving planar antenna device 29 is provided to construct the building material.
When installing the planar antenna device under the eaves or on the roof, there is no need to fix the planar antenna device to the roof material or wall material at the construction site, and the planar antenna device can be installed easily and securely without time. You can do it.

[Brief description of drawings]

FIG. 1 is a front view of a principle configuration showing an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a front view of a sheet material 18.

FIG. 4 is a front view of a sheet material 19.

5 is a front view of the sheet material 20. FIG.

FIG. 6 is a front view of the sheet material 21.

7 is a front view of the sheet material 22. FIG.

FIG. 8 is a front view of the sheet material 23.

9 is a front view of the sheet material 24. FIG.

FIG. 10 is a cross-sectional view of the antenna device.

FIG. 11 is a sectional view of a conductive pin portion.

FIG. 12 is a graph showing directional characteristics of the antenna device.

FIG. 13 is a front view of a principle configuration showing another embodiment.

FIG. 14 is a side view.

FIG. 15 is a front view of a principle configuration showing another embodiment.

FIG. 16 is a side view.

FIG. 17 is a front view.

FIG. 18 is a front view of a principle configuration showing another embodiment.

FIG. 19 is a front view of the sheet material 18.

FIG. 20 is a front view of the sheet material 19.

FIG. 21 is a front view of a principle configuration showing a conventional example.

[Explanation of symbols]

 1 Antenna Element 2a Long Side 2b Long Side 3a Short Side 3b Short Side 4a Feed Point 4b Feed Point 6a First Feed Conductor 6b First Feed Conductor 7 Antenna Unit 10a First Feed Conductor 10b First Feed Conductor 11a No. 1 feeding conductor 11b 1st feeding conductor 13a 2nd feeding conductor 13b 2nd feeding conductor 14a 2nd feeding conductor 14b 2nd feeding conductor 31 roofing material 32 outer wall material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasunori Sueyoshi 1-47 Shikitsuhigashi, Naniwa-ku, Osaka-shi, Osaka Kubota Co., Ltd. (72) Inventor Takahiro Mizoguchi Toichiichi, Shizutsu, Naniwa-ku, Osaka 2-47, Kubota Co., Ltd.

Claims (3)

[Claims] 1. A rectangular antenna element (1) is provided, and a midway portion of a pair of opposing side portions of the antenna element (1) serves as a pair of feeding points (4a), (4b), respectively. In a planar antenna device for reception in which points (4a) and (4b) are connected to a receiver side via a feeding conductor, an antenna device body (29) having the antenna element (1) and a feeding conductor, A planar antenna device for reception, which is provided on a building material such as a roof material and a wall material. 2. A rectangular antenna element (1) having a pair of long side portions (2a), (2b) and a pair of short side portions (3a), (3b) is a pair of long side portions (2a). ), (2b) are sequentially arranged in parallel and a plurality of them are arranged side by side on the same plane so as to be spaced at predetermined intervals in the directions of the short sides (3a), (3b), and the antenna elements (1) face each other. Long side (2
a) and (2b) have a pair of feeding points (4a),
(4b), so as to form a plurality of antenna units (7) formed by combining adjacent antenna elements (1) with each other, corresponding feeding points (4a), (4b) of adjacent antenna elements (1) Comrades have a pair of first feeding conductors (6
a) and (6b) respectively, and the corresponding first feeding conductors (6a), (6a), of the adjacent antenna units (7),
(6b) A pair of second power supply conductors (10
a), (10b), (11a), (11b), respectively, and the pair of second feeding conductors (10a), (10)
b), (11a), and (11b) have a pair of third feeding conductors (13a), (13b), (14a), and (14)
In the planar antenna device for reception, which is connected to the receiver side by b), the antenna device body (29) having the antenna element (1) and the feeding conductor is provided on a building material such as a roof material and a wall material. A planar antenna device for reception, characterized in that 3. A building material main body such as a roof material main body or a wall material main body is provided with a rectangular antenna element (1), and a pair of midway portions of a pair of opposing side edges of the antenna element (1) are provided respectively. A building material, characterized in that it is provided with a receiving planar antenna device as feeding points (4a) and (4b).