JPH03266506A - Mount method for planar antenna - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for attaching a flat antenna for satellite broadcast reception to a building.

[Prior Art] FIG. 6 shows a conventional mounting state of a planar antenna 3 on a wall surface 2 of a building 1. In the planar antenna 3, a beam 3a normally exists in a direction perpendicular to the antenna surface. Therefore, it is necessary to align the direction of this beam 3a with the direction of arrival of radio waves 5a from the BS (broadcasting satellite) 5. In other words,
The above-mentioned planar antenna 3 needs to adjust the elevation angle δ with respect to the ground horizontal line X and the azimuth angle θ along the horizontal line X in accordance with the radio wave arrival direction 5a, and the direction adjustment of the beam 3a is performed by installing a beam between the beam 3a and the wall surface 2. This is done using the attached mounting bracket 4.

That is, when the direction of the planar antenna 3 attached to the wall surface 2 of the building 1 via the mounting bracket 4 is adjusted, the planar antenna 3 will incline and overhang depending on the adjustment angle. Become.

FIG. 7 shows a conventional mounting state of a beam tilt type planar antenna 3 on the wall surface 2 of a building 1. This planar antenna 3 has a beam 3a whose direction is set at the elevation angle of the radio wave arrival direction 5a in the area of use. Since it is configured to match δ, it is only necessary to adjust the azimuth θ along the ground horizontal line X, but in this case as well, the inclined extension of the planar antenna 3 corresponding to the azimuth θ is adjusted in the same manner as above. will occur.

Figure 8 shows the beam tilt type planar antenna 3 installed on the southwest wall 2 of a building 1 in Tokyo, and the azimuth of the broadcasting satellite 5 in Tokyo is north (N).
Since it is 240° clockwise from
In other words, the planar antenna 3 in this case protrudes from the mounting wall surface 2 at an inclination angle of 15'.

[Problems to be Solved by the Invention] However, in the conventional mounting state of the above-mentioned planar antenna, the inclination of the planar antenna 3 must be adjusted with respect to the elevation angle δ and/or the azimuth angle θ with respect to the wall surface 2 of the building 1. As a result, the oblique extension of the planar antenna 3 not only significantly impairs the aesthetic appearance of the building, but also increases the wind pressure that the planar antenna 3 receives, causing loosening of the mounting bracket 4 and the possibility of changing the direction of the beam 3a. Adjustments will be necessary.

The present invention has been made in view of the above-mentioned problems, and allows for easy and strong mounting of a flat antenna for satellite radio wave reception on the wall of a building without damaging the aesthetic appearance of the building or subjecting it to strong wind pressure. An object of the present invention is to provide a method for attaching a planar antenna that can be attached to a flat antenna.

[Means and effects for solving the problem: In other words, the method for installing a flat antenna according to the present invention is to attach a variable directivity flat antenna to the wall of a building facing the direction of arrival of satellite radio waves, By fixing the antenna parallel to the wall of the building, the inclination of the planar antenna with respect to the wall of the building is eliminated.

[Example code] An embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 shows how a planar antenna is installed in a general residential building. In the figure, 11 is a building as a general residential building, 12 and 12' are wall surfaces for mounting the antenna whose facing direction is different by 90", and 13 is one wall surface 12
This is a planar antenna attached to the building 11 which constitutes the wall surface 12 for attaching one antenna, and the building 11 constituting the wall surface 12' for attaching the other antenna. Let the other side be the b-side. The two antenna mounting wall surfaces 12 and 12' are integrated in advance so as to face the direction in which the satellite radio waves arrive when designing the building 11.

Here, in the planar antenna 13, the elevation angle δ direction of the beam is set in advance to be constant according to the region of use, and
A variable directivity planar antenna in which the azimuth θ direction of the beam can be varied is used. In this case, the planar antenna 13 has its antenna surface facing, for example, to the wall surface 12 for mounting one of the antennas. Mounted and fixed in parallel. In other words, since the elevation angle δ of the beam of the planar antenna 13 is set in advance in the direction of the broadcasting satellite, there is no need to adjust the inclination in the vertical direction, and the azimuth angle θ is also within the range of ±50', for example. Since it can be changed as appropriate, there is no need to adjust the inclination in the left and right direction.
This planar antenna 13 is mounted with its antenna surface parallel to one of the antenna mounting walls 12, 12' facing the direction of arrival of satellite radio waves.

FIG. 2 is a side sectional view showing how the planar antenna 13 is attached to the wall surface 12 for antenna attachment with its antenna surface parallel to the wall surface 12 for attaching the antenna. It is firmly fixed to the wall surface 12 by the metal fittings 13a, 13b, and the mounting metal fittings 13a,
The antenna surface is set parallel to the wall surface 12 with the height of 13b as a clearance. Note that 14 is a converter.

Here, variable adjustment of the azimuth angle θ of the planar antenna 13 can be performed by mechanically changing the feeding phase of a large number of receiving elements arranged on the antenna surface of the planar antenna 13. The antenna 13 is configured such that the arrangement positions of adjacent receiving elements are movable.

Therefore, according to the method for mounting a flat antenna as described above, it is not necessary to adjust the inclination angle of the flat antenna 13 itself to align the beam direction with the direction of arrival of satellite radio waves. It can be fixed and fixed parallel to the wall surface 12 of 11, and it can be firmly fixed using simple mounting fittings 13a and 13b that do not require an inclination adjustment mechanism or the like. As a result, the planar antenna 13 does not extend obliquely to the wall surface 12, so the aesthetic appearance of the building 11 is not impaired.
Moreover, it becomes possible to easily and firmly attach the planar antenna 13 by reducing the influence of wind pressure.

FIG. 3 shows a second embodiment showing a method for mounting a planar antenna, in which a planar antenna 1 is attached to a wall surface 15 for antenna mounting.
A concave portion 15a in which the antenna 3 can be accommodated is formed in advance, and the antenna surface of the planar antenna 13 is made flush with the surface of the wall surface 15, and the planar antenna 13 is mounted and fixed using the same mounting fittings 13a and 13b as described above.

In this case, since the planar antenna 13 is installed without protruding from the wall surface 15 at all, the influence of wind pressure can be further reduced than in the antenna installation state shown in FIG. 2, and the aesthetic appearance of the building 11 is further improved. will be done.

FIG. 4 shows a third embodiment showing a method for mounting a planar antenna, in which a planar antenna 1 is attached to a wall surface 15 for antenna mounting.
3 is formed in advance, and the planar antenna 13 is installed with the antenna surface parallel to the wall surface 15, and the recess 15a to which the planar antenna 13 is attached is formed in advance.
The opening of 5g is covered with an insulator protection cover 16.

In this case, the planar antenna 13 does not protrude from the wall 15 at all, and the opening of the recess 15a is covered by the insulating protective cover 16 so as to be flush with the surface of the wall 15, so that the influence of wind pressure is completely eliminated. Moreover, if the insulating protection cover 16 is made of the same color as the wall surface 15, the beauty of the building 11 will not be impaired in any way.

FIGS. 5(A) and 5(B) each show a fourth embodiment showing how to attach a planar antenna, with FIG. 5(A) showing its external appearance and FIG. 5(B) showing its side cross-sectional state. There is.

That is, in FIG. 5, 17a and 17b are building 1
A shutter 18a provided on the wall surface 12 of 1.

Reference numeral 18b denotes the door pocket, and the planar antenna 13 is attached with its antenna surface parallel to the surface of the outermost shutter 17a, regardless of whether it is open or closed.

In this case as well, the elevation angle δ of the planar antenna 13 is set in advance in the direction of the broadcasting satellite, and the azimuth θ may be variably set in a direction based on the orientation of the wall surface 12, so the planar antenna 13 itself is tilted. Not necessary, mounting bracket 13a
, 13b, it is possible to reduce the influence of wind pressure and improve the aesthetic appearance, for example, similarly to the first embodiment shown in FIG. 2.

[Effects of the Invention] As described above, according to the present invention, a variable directivity flat antenna is installed on the wall of a building facing the direction of arrival of satellite radio waves.
By fixing the antenna surface parallel to the wall surface of the building, the inclination of the planar antenna with respect to the wall surface of the building is eliminated. Moreover, it can be easily and firmly installed without spoiling the beauty of the building or being exposed to strong wind pressure.

[Brief explanation of drawings]

FIG. 1 is an external view showing how the planar antenna is attached to the wall of a building according to the method of attaching the planar antenna according to an embodiment of the present invention, and FIG. 2 is a side cross-sectional view showing how the planar antenna is attached to the wall of the building. 3 is a side cross-sectional view showing how the planar antenna is attached to the wall of a building according to the second embodiment of the method for attaching the above-mentioned planar antenna, and FIG. 4 is a building according to the third embodiment of the method for attaching the above-mentioned planar antenna. 5A and 5B are side sectional views showing how the planar antenna is attached to the wall of a building, and FIGS. 5A and 5B are external views showing how the planar antenna is attached to the wall of a building according to the fourth embodiment of the above-mentioned planar antenna attachment method, respectively. Fig. 6 is an external view showing the conventional mounting state of a planar antenna on the wall of a building. Fig. 7 is an external view showing the conventional mounting state of a beam tilt type planar antenna on the wall of a building. figure,
FIG. 8 is a diagram showing the beam tilt type planar antenna attached to the southwest wall of a building in Tokyo. 11...Building, 12.12' 15...Wall surface, 13...Planar antenna, 13a; 13b...
Mounting bracket, 14... converter, 15a... recess,
16... Insulator protection cover 17a, 17b... Storm door, 18a. 18b...Dobukuro.

Claims (4)

[Claims] (1) Installation of a flat antenna characterized in that a variable directivity flat antenna is mounted on the wall of a building facing the direction of arrival of satellite radio waves with the antenna surface parallel to the wall of the building. Method. (2) When installing a variable directivity planar antenna on the wall of a building facing the direction of arrival of satellite radio waves, a recess having an opening at least wider than the planar area of the planar antenna is formed on the wall of the building. . A method for attaching a planar antenna, characterized in that the variable directivity planar antenna is housed and attached in the recess with the antenna surface flush with the wall surface of the building. (3) When installing a variable-directivity planar antenna on the wall of a building facing the direction of arrival of satellite radio waves, an aperture wider than at least the planar area of the planar antenna should be installed on the wall of the building to cover the entire planar antenna. A recess having a bottom surface deeper than the height thereof is formed, and the variable directivity planar antenna is housed and installed in the recess with the antenna surface parallel to the wall surface of the building, and the opening surface of the recess is A method for installing a flat antenna characterized by covering it with a protective cover made of an insulator. (4) Install a variable-directivity flat antenna on the surface of a shutter or window that faces the direction of arrival of satellite radio waves and faces the outdoors in both open and closed states, with the antenna surface parallel to the surface of the shutter or window. A method for installing a flat antenna, characterized in that the antenna is installed in a flat antenna.