JPS58964Y2 - antenna couch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an antenna device particularly suitable for a large-diameter parabolic antenna.

In a parabolic antenna, the larger the diameter, the more diverse the temperature distribution on the surface, which tends to cause distortion on the surface and degrade the antenna performance.

In addition, especially when installed in a cold region, snow or ice may adhere to the surface of the parabolic antenna, blocking the passage of radio waves.

Therefore, it is required that the parabolic antenna be used under the most desirable conditions by constantly controlling the surface temperature to be constant.

The present invention has been developed in view of these points, and is designed to provide a pipe through which a cooling or heating medium is forced to flow over the surface of a parabolic antenna, with good thermal coupling, and a uniform temperature distribution on the surface of the parabolic antenna. It is an object of the present invention to provide an extremely good antenna device that easily and reliably eliminates the drawbacks of the prior art by making it possible to control the antenna surface temperature to a desired value by piping in a shape that can be changed.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.As shown in FIG. 13 is used for piping.

In this case, the piping shape is parabolic antenna 120
Any shape is sufficient as long as it can make the surface temperature distribution uniform, and in addition to the shape shown in FIG.
3 may be piped.

In any case, in order to fix the pipe 13 or 13' to the back surface of the parabolic antenna 12 during piping, for example, as shown in FIG. The antenna 12 is wrapped with a heat insulating material 14 to ensure good thermal coupling, and then fixed to the back surface of the antenna 12 with a mounting band 15 using screws or the like.

In this case, it is desirable that the leading end of each pipe 13 or 13', that is, the introduction end and the discharge end of the heating or cooling medium, which will be described later, be concentrated at the same location as much as possible.

In this way, the pipe 13 is piped on the back surface of the parabolic antenna 12 in the desired state and shape.
or the introduction end of 13' (for example, part A in Fig. 1,
A heating or cooling medium is forcibly supplied and circulated from the A' part in the case of , and heated or cooled from the discharge end (for example, the B part in the case of Fig. 1 and the B' part in the case of Fig. 2). By discharging the used medium, the surface side of the parabolic antenna 12 is controlled to a predetermined constant temperature.

As a result, the surface side of the parabolic antenna 120 is always controlled to a desired constant temperature, so especially in the summer, the temperature distribution on the surface of the antenna 120 is made as uniform as possible to prevent thermal distortion, thereby improving antenna performance. In addition, in winter (when installed in a particularly cold region), by circulating a heating medium through the pipe 13 or 13', it is possible to melt snow and ice adhering to the surface of the antenna 12. Adhesion itself can be prevented, thereby making it possible to improve the passage of radio waves.

Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

For example, instead of piping in a predetermined shape on the back side of the parabolic antenna 12, a layered structure in which a heating or cooling medium is forced to flow, and which has substantially the same function as a pipe. That's fine.

Therefore, according to the present invention as described in detail above, it is possible to provide an extremely good antenna device that can easily and reliably eliminate the drawbacks of the conventional antenna device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the antenna device according to the present invention, Fig. 2 is a perspective view showing another embodiment, and Fig. 3 shows an example of fixing the pipe in Figs. 1 and 2. FIG. 11...Pedestal, 12...Parabola antenna, 13.13'...Pipe, 14...
...Insulation material, 15...Mounting band.

Claims (1)

[Scope of utility model registration request] A pipe is arranged on the back surface of the parabolic antenna in a shape that allows a good thermal coupling and a uniform surface temperature distribution of the parabolic antenna, through which a heating or cooling medium is forced to flow. antenna device.