JPH0715225A - Building provided with antenna on outer wall surface - Google Patents

Abstract

PURPOSE:To facilitate the installation of an antenna and to cancel radio wave faults caused by the shadow of the building by installing a conductor as the antenna for high frequency on the outer wall surface or the surface of the window of the building so as to radiate or absorb radio waves with the conductor. CONSTITUTION:A conductor 3 is embedded in an outer wall panel 2 (insulated object) of the building and in the building inside direction of the outer wall panel 2, as a reflector 4, a metal board or metal mesh is fitted and grounded. When radiating radio waves, a voltage is impressed between terminals 3a and 3a of the conductor 3. Thus, the radio waves are radiated from the conductor 3 to the front direction of the outer wall surface of the building. When receiving radio waves, the radio waves are absorbed by the conductor 3. In this case, since the place of antenna installation is not selected, the antenna installation is facilitated. When using the building for mobile object communication, it is possible to increase the number of antennas to be installed, and area division can be made fine. On the other hand, at a building in the shadow of that building, radio wave faults are canceled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building having a high frequency antenna used for FM broadcasting, television, mobile communication, etc. on an outer wall surface.

[0002]

2. Description of the Related Art Generally, antennas for FM broadcasting are
It is installed in a place suitable for emitting or receiving radio waves, such as a tower or a tall building.

[0003]

Therefore, there are few suitable installation places and the antenna installation is not easy.

An object of the present invention is to facilitate the installation of an antenna and effectively eliminate the radio interference caused by the shadow of a building.

[0005]

According to the present invention, a conductor serving as a high frequency antenna is installed on the outer wall surface of a building or the surface of a window, and the conductor emits or absorbs radio waves.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention, in which an outer wall surface of a building 1 is formed by a large number of outer wall panels 2. The outer wall panel 2 is provided with a conductor as a high frequency antenna as shown in FIGS.
The size of the antenna ranges from about 50 cm to about 2 to 3 meters.

In the example of FIG. 2, two linear conductors 3 are embedded in the outer wall panel 2 (insulator). The conductor 3 may have a linear shape or a loop shape. A metal plate or a metal mesh is attached as the reflection plate 4 to the inside of the building of the outer wall panel 2 and is grounded.
When radiating radio waves, the conductor 3 (element) terminal 3a-
A voltage is applied between 3a. As a result, electric waves are radiated from the conductor 3 in front of the outer wall surface of the building 1. When receiving a radio wave, the radio wave is absorbed by the conductor 3.

In the example of FIG. 3, a plate-shaped conductor 5 and a reflection plate 6 (metal plate or metal mesh) located inside the building are embedded inside the outer wall panel 2. When radiating a radio wave, a voltage is applied between the conductor 5 and the grounded reflector plate 6.

In the example shown in FIG. 4, the conductive window frame 7 is also used as an antenna. A metal plate or metal mesh is attached as the reflector 8 to the inside of the building of the outer wall panel 2 and is grounded. When radiating radio waves, a voltage is applied between the window frame 7 and the reflector 8.

According to the illustrated embodiment, the antenna can be installed easily because the antenna can be installed anywhere. In particular, when it is used for mobile communication, it is possible to increase the number of installation locations, so that the area division in the mobile communication system can be made finer and radio waves can be used efficiently. Further, by implementing the present invention in a building in an area where radio waves do not reach due to the shadow of a building, elimination of radio interference can be effectively achieved.

In use, the plurality of conductors 3,
Consider the interference between radio waves from 5 and 7, elimination of dangers due to high voltage, and effects of electromagnetic waves inside the building.

In the above-mentioned embodiment, the type of embedding inside the outer wall panel has been described, but the same effect can be obtained even if it is attached to the panel surface.

[0013]

As described above, according to the present invention,
Since a conductor as an antenna for high frequency is installed on the outer wall surface of the building or the surface of the window, and the electric wave is radiated or absorbed by the conductor, the antenna can be easily installed and the radio interference caused by the shadow of the building can be eliminated. Can be effective. When it is used for mobile communication, it is possible to increase the number of antennas installed, so that the area division in the mobile communication system can be made finer and radio waves can be used efficiently.

[Brief description of drawings]

FIG. 1 is a diagram showing a building having an antenna on an outer wall surface, which is an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of an outer wall panel in FIG.

FIG. 3 is a perspective view showing another example of the outer wall panel in FIG.

4 is a perspective view showing another example of the outer wall panel in FIG. 1. FIG.

[Explanation of symbols]

 1 Building 2 Outer wall panel 3 Conductor 4 Reflector 5 Conductor 6 Reflector 7 Window frame 8 Reflector

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Okamura 2-2-1 Jinnan, Shibuya-ku, Tokyo Within Japan Broadcasting Corporation (72) Inventor Shinichi Fujiwara 2-2-1, Jinnan, Shibuya-ku, Tokyo Within the Japan Transport Association (72) Inventor Makoto Otani 2-2-1, Jinnan, Shibuya-ku, Tokyo Within the Japan Broadcasting Association

Claims (1)

[Claims] 1. A building having an antenna on the outer wall surface, in which a conductor as a high frequency antenna is installed on the outer wall surface of the building or the surface of the window, and the electric wave is radiated or absorbed by the conductor.