JPH09116321A - Planar antenna device for reception - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the wiring of a cable for connecting an antenna element to the side of a receiver, to prevent construction materials such as roof materials from being damaged and further, to also prevent water proofness from being damaged. SOLUTION: An antenna element 11 is integrally provided on armour construction materials. Then, a first planar conductor 30 is provided at a power feeding point 18 of the antenna element 11, further, a second planar conductor 31 electrostatically coupled with the first planar conductor 30 is provided with the construction materials inside the armour construction materials between, and the cable for connecting the second planar conductor 31 to the receiver side is connected to this second planar conductor 31.

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 in which an antenna element is integrally incorporated into a building material such as a roof material or an outer wall material.

[0002]

2. Description of the Related Art An antenna element for TV reception is installed on a roof in order to prevent the appearance of a building from being damaged and damage or radio interference caused by external factors such as wind and rain. 2. Description of the Related Art There has been proposed a planar antenna device for reception, which is integrally incorporated in a building material such as a building material or an outer wall material. In this type of conventional receiving planar antenna device, for example, in which the antenna element 2 is integrally provided on the lower surface of the roof material 1 as shown in FIG. 11, this roof material 1 is used together with other roof materials 1 in a roof field. There is one that is arranged on the main plate 3 via a waterproof sheet 4 (for example, JP-A-7-106834). In this case, the coaxial cable 5 for connecting the antenna element 2 of the roof material 1 to the receiver side is an antenna. It was pulled out from the element 2 to the upper end of the roof along the roof surface, and from there, it was lowered into the interior of the building and connected to the receiver side.

[0003]

However, in the conventional case,
Since the coaxial cable 5 for connecting the antenna element 2 to the receiver side needs to be laid along the building material such as the roof material 1 for a considerable length of time, the wiring becomes complicated and is disadvantageous in terms of waterproofing. In particular, when the coaxial cable 5 is provided along the roof surface as shown in FIG. 11, the coaxial cable 5 usually has a diameter of about 5 mm, so that there is a problem in that the roof material 1 is likely to crack.

Therefore, as shown in FIG. 12, through holes 7 and 8 are provided in the waterproof sheet 4 and the bottom plate 3 below the roof material 1, and the antenna element 2 is connected to the receiver side through the through holes 7 and 8. It is conceivable to insert a coaxial cable 5 for wiring and wire it in the building. However, in this case, the coaxial cable 5 does not need to run along the roof surface, and it is possible to prevent the roof material 1 and the like from cracking. This may result in the invasion of the roof, etc., and impair the waterproofness of the roof.

In view of the above problems, the present invention can simplify wiring of a cable for connecting an antenna element to a receiver side, prevent damage to a building material such as a roofing material, and have a waterproof property. It is something that is not damaged.

[0006]

The first technical means of the present invention for solving this technical problem is the antenna element 1
In the planar antenna device for reception in which 1 is integrally provided in the exterior building material, the first planar conductor 30 is provided at the feeding point 18 of the antenna element 11, and the first interior surface of the exterior building material is sandwiched by the first planar conductor 30. A second planar conductor 31 that is electrostatically electrically coupled to the one planar conductor 30 is provided.
1 is connected to a cable 32 for connecting the second planar conductor 31 to the receiver side.

The second technical means is a receiving planar antenna device in which the antenna element 11 is integrally provided on the roof 39, and the first planar conductor 30 is provided at the feeding point 18 of the antenna element 11. , Tarpaulin 4 below the roofing material 39
2 and a bottom plate 41, a second planar conductor 31 that is electrostatically electrically coupled to the first planar conductor 30 is provided,
The cable 32 for connecting the second planar conductor 31 to the receiver side is connected to the second planar conductor 31.

A third technical means is a receiving planar antenna device in which the antenna element 11 is integrally provided on the roof 39, and the first planar conductor 30 is provided at the feeding point 18 of the antenna element 11. , Tarpaulin 4 below the roofing material 39
A second planar conductor 31 electrostatically electrically coupled to the first planar conductor 30 is provided between the second planar conductor 31 and the second planar conductor 31, and the second planar conductor 31 is provided on the second planar conductor 31. Is connected to the receiver side, and the cable 32 is inserted into the base plate 41 and wired in the building.

A fourth technical means is a receiving planar antenna device in which an antenna element 11 is integrally provided in an exterior building material, and a first exterior building material is sandwiched by a building material inside the exterior building material. The planar conductor 30 and the second planar conductor 31 on the inner side are
The first planar conductor 30 is provided so as to be electrically coupled electrostatically, is connected to the feeding point 18 of the antenna element 11, and is connected to the second planar conductor 31 with the second planar conductor 31 on the receiver side. The point is that the cable 32 for connection is connected.

Therefore, the electric wave received by the antenna element 11 is electrostatically coupled, which is usually called capacity coupling, from the first planar conductor 30 to the waterproof sheet 4.
2, transmitted through the building material such as the field board 41, the waterproof sheet 53, or the inner wall material 52 to the second planar conductor 31, and is sent to the receiver side through the cable 32. As a result, the cable 32 that sends the radio wave received by the antenna element 11 to the receiver side can be immediately wired in the building without providing a through hole in the building material such as the waterproof sheet 42 or the waterproof sheet 53. Therefore, the coaxial cable 32 can be
Eliminates the need for long wiring along the roof surface or wall surface.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the illustrated embodiments. 2 to 5, reference numeral 11 denotes a TV receiving antenna element, which is arranged between two antenna sheets 12 made of a plastic film. That is, the antenna element 11 is formed by applying a conductive paint or pasting a conductor such as a conductive tape on the surface of one antenna sheet 12, and sandwiching the antenna element 11 in a sandwich shape on the one antenna sheet 12. Thus, the other antenna sheet 12 is polymerized and the antenna sheets 12 are adhered to each other with an adhesive or the like.

The antenna element 11 has a pair of side portions 15, another side portion 16, and a pair of power feeding side portions 17 protruding inward from one end of the pair of side portions 15. A pair of power supply sides 17
The opposite end portions of are the pair of feeding points 18. A bent portion 21 is interposed between the pair of side portions 15 of the antenna element 11. The bent portion 21 has a characteristic similar to a linear side portion obtained by linearly extending the bent portion 21, and can be replaced with a long straight side portion of the antenna element 11. Therefore, by interposing the bent portion 21 between the pair of side portions 15, the pair of opposing side portions 15 of the antenna element 11 is formed to be short, so that the entire size of the antenna element 11 can be reduced to the size of a unit building material such as a roof material. It is possible to shorten the length and integrate the antenna element 11 with a unit building material such as a roof material.

An antenna body 37 is constituted by the antenna element 11 and the two antenna sheets 12 and the like, and the antenna body 37 is adhesive or double-sided adhesive tape 38 via one antenna sheet 12 as shown in FIG. And the like, and is attached to the lower surface of the roof material 39, whereby the antenna element 11 is integrally incorporated in the roof material 39 which is an exterior building material.

As shown in FIG. 1, the antenna element 11
The roofing material 39 integrally provided with is disposed together with the other roofing materials 39 on the base plate 41 of the roof via the waterproof sheet 42. A first planar conductor 30 made of a copper plate or the like is provided at the feeding point 18 of the antenna element 11, and the first planar conductor 30 is provided below the waterproof sheet 42 and the bottom plate 41 below the roof material 39. Correspondingly, the second planar conductor 31
Is provided. First planar conductor 30 and second planar conductor 3
The first sheet conductor 1 and the first sheet conductor 3 are arranged substantially parallel to each other with the waterproof sheet 42 and the field plate 41 sandwiched therebetween.
0 and the second planar conductor 31 are electrostatically electrically coupled. A coaxial cable 32 for connecting this to the receiver side is connected to the second planar conductor 31, and the coaxial cable 32 is wired in the building and connected to the receiver.

Paraffin or the like is impregnated in the portions corresponding to the sheet conductors 30 and 31 of the waterproof sheet 42 and the base plate 41, whereby the first sheet conductor 30 and the second sheet conductor 31 are separated from each other. The permittivity between them is increased. FIG. 5 shows another embodiment, in which the first planar conductor 30 made of a copper plate or the like is provided at the feeding point 18 of the antenna element 11, and the waterproof sheet 42 and the ground plate 41 below the roof material 39 are provided. In between, a second planar conductor 31 is provided corresponding to the first planar conductor 30. The first planar conductor 30 and the second planar conductor 31 are arranged substantially in parallel so as to face each other with the waterproof sheet 42 in between, and the first planar conductor 30 and the second planar conductor 31 are arranged.
And are electrostatically electrically coupled to. The coaxial cable 32 is provided at a position corresponding to the second planar conductor 31 of the field plate 41.
An insertion hole 45 for inserting the through hole is provided. A coaxial cable 32 for connecting this to the receiver side is connected to the second planar conductor 31, and the coaxial cable 32 has an insertion hole 45.
It is inserted into the building, wired inside the building, and connected to the receiver. The portions of the waterproof sheet 42 corresponding to the sheet conductors 30 and 31 are impregnated with paraffin or the like, whereby the dielectric constant between the first sheet conductor 30 and the second sheet conductor 31 is increased. I am raising.

FIGS. 6 to 8 show another embodiment, and the antenna main body 3 composed of the antenna element 11, the two antenna sheets 12 and the like as in the case of the above embodiment.
7 is an outer wall material 5 with an adhesive or a double-sided adhesive tape 38, etc.
The antenna element 11 is integrally attached to the outer wall material 51 which is an exterior building material.

The outer wall material 51 integrally provided with the antenna element 11 is used together with other outer wall materials 51 to form the inner wall material 5 of the building.
A waterproof sheet 53 is provided on the outer side of 2, and is provided between the outer wall member 51 and the inner wall member 52. The first planar conductor 30 made of a copper plate or the like is provided at the feeding point 18 of the antenna element 11, and the waterproof sheet 53 inside the outer wall material 51 is provided.
A second planar conductor 31 is provided below the inner wall member 52 so as to correspond to the first planar conductor 30. The first planar conductor 30 and the second planar conductor 31 are arranged substantially in parallel so as to face each other with the waterproof sheet 53 and the inner wall member 52 interposed therebetween, and the first planar conductor 30 and the second planar conductor 30 are arranged. 31 is electrostatically electrically coupled. A coaxial cable 32 for connecting this to the receiver side is connected to the second planar conductor 31, and the coaxial cable 32 is wired in the building and connected to the receiver. And the waterproof sheet 5
Paraffin or the like is impregnated in the portions of the inner wall member 52 corresponding to the sheet conductors 30 and 31 to increase the dielectric constant between the first sheet conductor 30 and the second sheet conductor 31. ing. Incidentally, 55 is a furring strip arranged in the vertical direction.

FIG. 9 shows another embodiment, in which the first planar conductor 30 made of a copper plate or the like is provided at the feeding point 18 of the antenna element 11, and the waterproof sheet 53 inside the outer wall member 51 is provided. A second planar conductor 31 is provided between the inner wall member 52 and the first planar conductor 30. The first planar conductor 30 and the second planar conductor 31 are arranged substantially parallel to each other with the waterproof sheet 53 sandwiched therebetween, and the first planar conductor 30 and the second planar conductor 31 are electrostatically charged. Electrically coupled. An insertion hole 45 for inserting the coaxial cable 32 is provided at a position of the field plate 41 corresponding to the second planar conductor 31. A coaxial cable 32 for connecting this to the receiver side is connected to the second planar conductor 31, and the coaxial cable 32 is inserted into the insertion hole 45 and wired in the building so as to be connected to the receiver. Has become. The portions of the waterproof sheet 53 corresponding to the sheet conductors 30 and 31 are impregnated with paraffin or the like, whereby the dielectric constant between the first sheet conductor 30 and the second sheet conductor 31 is increased. I am raising.

FIG. 10 shows another embodiment in which the first planar conductor 30 made of a copper plate or the like is formed separately from the antenna body 37 and is provided on the waterproof sheet 42 near the antenna body 37. There is. The second planar conductor 31 made of a copper plate or the like is provided below the field plate 41. The first sheet conductor 30 and the second sheet conductor 31 are the waterproof sheet 42.
The first planar conductor 30 and the second planar conductor 31 are arranged substantially parallel to each other with the field plate 41 in between.
And are electrostatically electrically coupled to. First planar conductor 30
Is connected to the feeding point 18 of the antenna element 11, and the second planar conductor 31 is connected to the coaxial cable 32 for connecting this to the receiver side. Therefore, in this case, the electric wave received by the antenna element 11 is sent from the feeding point 18 to the first planar conductor 30, and then passes through the waterproof sheet 42 and the field plate 41 from the first planar conductor 30 to the second planar conductor 30. Planar conductor 3
1 is transmitted to the receiver side through the cable 32. And, in the portions corresponding to the sheet conductors 30 and 31 of the waterproof sheet 42 and the field board 41,
It is impregnated with paraffin or the like, which increases the dielectric constant between the first planar conductor 30 and the second planar conductor 31.

In the above embodiment, the antenna element 11 is arranged between the two antenna sheets 12 and these are attached to the roof material 39 or the outer wall material 51, but instead of this, the roof material 39 or The antenna element 11 may be directly formed on the surface of the outer wall member 51 by applying a conductive paint or attaching a conductor such as a conductive tape.

[0021]

According to the present invention, the electric wave received by the antenna element 11 is transmitted from the first sheet conductor 30 through the building material such as the waterproof sheet 42, the field board 41, the waterproof sheet 53 or the inner wall material 52. It is transmitted to the second planar conductor 31 and sent to the receiver side through the cable 32. Therefore, the cable 32 for sending the radio wave received by the antenna element 11 to the receiver side does not need to be laid long along the roof surface or the wall surface unlike the conventional case, and the antenna element 11 is connected to the receiver side. It is possible to simplify the wiring of the cable 32 for this purpose, and there is no fear of impairing the waterproofness of the roof, the outer wall and the like. In particular, when the antenna element 11 is incorporated in the roof material 39, it is not necessary to lay the cable 32 along the roof surface, the cracking of the roof material 39 and the like is prevented, and the damage of the building material such as the roof material 39 is effective. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a rear view of the antenna body.

FIG. 3 is a rear view of the antenna device.

FIG. 4 is a sectional view of the antenna body.

FIG. 5 is a side sectional view showing another embodiment.

FIG. 6 is a side sectional view showing another embodiment.

FIG. 7 is a rear view of the antenna device.

FIG. 8 is a rear view of the antenna body.

FIG. 9 is a side sectional view showing another embodiment.

FIG. 10 is a side sectional view showing another embodiment.

FIG. 11 is a side sectional view showing a conventional example.

FIG. 12 is a side sectional view showing another conventional example.

[Explanation of symbols]

 11 Antenna Element 30 First Planar Conductor 31 Second Planar Conductor 32 Coaxial Cable 39 Roofing Material 42 Waterproof Sheet 41 Field Board 51 Outer Wall Material 52 Inner Wall Material 53 Waterproof Sheet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kensuke Ishida 1-247 Shikitsuhigashi, Naniwa-ku, Osaka-shi, Osaka Kubota Corporation

Claims (4)

[Claims] 1. A planar antenna device for reception in which an antenna element (11) is integrally provided on an exterior building material, wherein a first planar conductor (30) is provided at a feeding point (18) of the antenna element (11). And a second planar conductor (31) electrostatically electrically coupled to the first planar conductor (30) with the building material inside the exterior building material sandwiched between the second planar conductor (31). ) Is connected with a cable (32) for connecting the second planar conductor (31) to the receiver side. 2. An antenna element (11) is a roofing material (39).
In the planar antenna device for reception provided integrally with the antenna element (11), the first planar conductor (30) is provided at the feeding point (18) of the antenna element (11), and the waterproof sheet (42) below the roof material (39). ) And a bottom plate (41), a second planar conductor (31) electrostatically electrically coupled to the first planar conductor (30) is provided below the second planar conductor (31). A planar antenna device for reception, characterized in that a cable (32) for connecting the second planar conductor (31) to the receiver side is connected. 3. An antenna element (11) is a roofing material (39).
In the planar antenna device for reception provided integrally with the antenna element (11), the first planar conductor (30) is provided at the feeding point (18) of the antenna element (11), and the waterproof sheet (42) below the roof material (39). ) And the ground plate (41), a second planar conductor (31) electrostatically electrically coupled to the first planar conductor (30) is provided, and the second planar conductor (31) is provided. , A cable (32) for connecting the second planar conductor (31) to the receiver side is connected, and the cable (32) is the base plate (4).
1) A planar antenna device for reception, which is inserted into 1) and wired inside a building. 4. A receiving planar antenna device in which an antenna element (11) is integrally provided on an exterior building material, wherein a first planar conductor (on the outer side is sandwiched between building materials inside the exterior building material). 30) and the second planar conductor (31) on the inner side,
The first planar conductor (30) is provided so as to be electrically coupled electrostatically, is connected to the feeding point (18) of the antenna element (11), and the second planar conductor (31) is connected to the second surface. (32) for connecting the conductor (31) to the receiver
A planar antenna device for reception, characterized in that