JP2005236608A - Glass-pasted antenna - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attach an antenna on a glazing without doing complicated work with a simple configuration. <P>SOLUTION: A glass-pasted antenna 1 consists of an antenna elements 10 and a power supply 20. The antenna elements 10 is fixed on the glazing 3, and the power supply 20 is attracted on the ground plate 30 which is fixed on a sash 2 by a magnet for the ground, and fixed. The ends of the elements which project from the antenna elements 10 is attracted to the magnet for hot of the power supply 20, and fixed electrically and mechanically. The connector 28 equipped with the end of the power supply cable 22 derived from the power supply 20 is connected with a TV monitor 31. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a glass-attached antenna that can be attached to a glass window of a house.

Conventionally, the glass antenna provided in the window glass for buildings is known (refer to patent documents 1). One structural example of this glass antenna is shown in FIG.
As shown in FIG. 23, a horizontally long loop antenna 102 is formed on one surface of a window glass 101 by screen printing together with a feeding point 103 and fired. The window glass 101 in which the loop antenna 102 is formed in this manner is fitted into the sash 104, and this sash 104 is attached to the support frame. Next, the coaxial cable 106 fixed to the sash 104 with the saddle 105 is connected to the feeding point 103, and the other end of the coaxial cable 106 is connected to a television receiver or the like.
Japanese Patent Laid-Open No. 5-110326

The conventional glass antenna has a problem that the antenna is complicated and expensive because the antenna is screen-printed on the window glass and fired. In addition, there is a problem that the work of connecting the coaxial cable to the feeding point and the work of fixing the coaxial cable to the sash using a saddle are necessary, and the work of installing the antenna becomes complicated.
Therefore, an object of the present invention is to provide a glass-attached antenna that can be easily attached to a window glass without a complicated operation with a simple configuration.

  In order to achieve the above object, a glass-attached antenna according to the present invention comprises a hot magnet that is attracted to one end of an antenna element portion that can be fixed on a glass plate, and a grounding magnet that is attracted to a window frame. The main feature is that it is provided in the derived power feeding section.

According to the present invention, the hot magnet that is attracted to one end of the antenna element portion that can be fixed on the glass plate and the earth magnet that is attracted to the window frame are provided in the feeding portion from which the coaxial cable is led out. Therefore, by attaching the antenna element part on the glass plate and attracting the earth magnet to the window frame, one end of the antenna element part is attracted by the hot magnet so that the antenna can be installed easily. Become.
In addition, when a ferromagnetic pipe is fitted to the ground part and center conductor of the power supply cable, the ground part is attracted to the grounding magnet, and the center conductor is attracted to the hot magnet to electrically and mechanically connect. Therefore, the coaxial cable can be easily connected to the power feeding unit.

  An antenna element that can be fixed on a glass plate to a feeding part from which a coaxial cable is led out for the purpose of providing a glass-attached antenna that can be easily attached to a window glass without complicated work with a simple configuration. This is realized by providing a hot magnet that is attracted to one end of the part and an earth magnet that is attracted to the window frame.

A mode in which the glass-attached antenna of Example 1 of the present invention is installed in a glass window for a building is shown in FIG.
The glass-attached antenna 1 according to the first embodiment of the present invention shown in this figure has an antenna element portion 10 fixed on a window glass 3 fitted in a sash 2 of a glass window, and an electric power is applied to the antenna element portion 10 by a magnet. It is comprised from the electric power feeding part 20 adsorb | sucked mechanically and mechanically. The power feeding unit 20 is attracted and fixed to the sash 2 by a magnet, but when the sash 2 is made of a material that does not attract the magnet, a ground plate 30 made of a ferromagnetic material is attached to the sash 2 as shown in the figure. Etc. are provided. The power feeding unit 20 includes a grounding magnet that is attracted to the sash 2 or the ground plate 30 and a hot magnet that can be attracted to one end of the element in the antenna element unit 10. The antenna element portion 10 is fixed to the window glass 3 so as to be attached or detached. A connector 28 is provided at the tip of the power supply cable 22 led out from the power supply unit 20 and is connected to a TV monitor 31 or the like. In the weak electric field region, the booster 40 can be provided on the feeding cable 22. Moreover, although the glass sticking antenna 1 is installed so that the antenna element part 10 may become horizontal, it can also be installed so that the antenna element part 10 may become vertical as shown with a broken line in FIG.

The structure of the antenna element part 10 in the glass pasting antenna 1 of Example 1 of this invention is shown in FIG. 2 thru | or FIG. 2 is a front view showing the configuration of the antenna element unit 10, FIG. 3 is a plan view showing the configuration of the antenna element unit 10, and FIG. 4 is a side view showing the configuration of the antenna element unit 10. As shown in FIG.
As shown in these drawings, the antenna element portion 10 includes an elongated rectangular parallelepiped antenna case portion 11 in which the element is built, and the antenna element portion 10 is attached to and detached from the window glass 3 on the lower surface of the antenna case portion 11. A pair of suction cups 13 that can be fixed as possible are provided. An element magnet 12 attached to one end of the element protrudes from one side surface having a short side of the antenna case portion 11, and an insertion portion 12 a protrudes from the element magnet 12. The element magnet 12 can be attracted to a hot magnet in the power feeding unit 20.

FIG. 5 is a front view showing another configuration of the antenna element unit 10. In this antenna element unit 10, a double-sided tape 14 is provided on the lower surface of the antenna case unit 11 in place of the pair of suction cups 13. The antenna element portion 10 is fixed on the window glass 3 by the double-sided tape 14.
The antenna element unit 10 is designed to operate as an antenna for terrestrial television reception, an FM radio reception antenna, and an antenna for SDARS (Satellite Digital Audio Radio Service) such as XM radio, SIRIUS, and MSB. ing. In this case, the antenna element unit 10 has an antenna form such as a quarter-wave whip antenna, a half-wave dipole antenna, a quarter-wave bent whip antenna, or the like.

The detailed structure in the antenna element part 10 in the glass sticking antenna 1 of Example 1 of this invention is shown to Fig.6 (a) (b) (c) (d).
As shown in FIG. 6A, the element 15a is formed on the dielectric substrate 15b so that one end protrudes. The dielectric substrate 15b can be a film made of polyimide, PET (polyethylene terephthalate) or the like. In this case, the dielectric substrate 15b is a film antenna made of the dielectric substrate 15b on which the element 15a is formed. The dielectric substrate 15b may be a Teflon substrate. The end of the element 15a formed on the dielectric substrate 15b in this way is projected from the dielectric substrate 15b, and the insertion portion 12b formed as a groove in the element magnet 12 as shown in FIG. 6B. And electrically and mechanically connected by soldering or the like. In this case, the entire surface of the element magnet 12 is subjected to a conductive treatment such as nickel plating. As a result, as shown in FIG. 6C, the element 15a and the element magnet 12 are connected to each other and housed in the antenna case portion 11 to form the antenna element portion 10 having the configuration shown in FIGS.
The element magnet 12 may be made of a ferromagnetic material instead of the magnet, and the element 15a may be an element 15a ′ made of a metal plate such as copper or iron as shown in FIG. 6 (d). good.

Next, the configuration of the power feeding unit 20 is shown in FIGS. 7 is a front view showing the configuration of the power feeding unit 20, FIG. 8 is a side view showing the configuration of the power feeding unit 20, FIG. 9 is a rear view showing the configuration of the power feeding unit 20, and FIG. It is a bottom view which shows the structure of 20. FIG.
As shown in these drawings, the power feeding unit 20 is configured by housing a base portion 24 made of an insulating material to which a grounding magnet 25 is fixed in a rectangular parallelepiped power feeding case portion 21. A power supply cable 22 is led out from the power supply case portion 21. A grounding magnet 25 having a U-shaped cross section fixed to the base portion 24 slightly protrudes from the back surface of the power supply case portion 21. Further, an opening through which the hot magnet 23 that can be attracted to the element magnet 12 can be seen is provided on one side surface of the power supply case portion 21.

FIG. 11 shows the internal structure of the power supply unit 20 having such a configuration, and FIG. 12 shows the configuration of the power supply cable 22.
As shown in FIG. 11, a grounding magnet 25 having a U-shaped cross section is fixed to the insulating rectangular plate-like base portion 24 along the outer peripheral portion thereof, and a rectangular parallelepiped shape is formed at the substantially central portion. A hot magnet 23 is fixed. As shown in FIG. 12, a core wire pipe 26 and a ground pipe 27 are attached to the distal end portion of the power supply cable 22 led out from the power supply section 20. That is, as shown in FIG. 12, a ferromagnetic earth pipe 27 is fitted on the braided wire 22c exposed by removing the jacket 22d of the power supply cable 22, and the braided wire 22c and the insulating portion 22b are removed. A core wire pipe 26 made of a ferromagnetic material is fitted into the exposed core wire 22a. When the power supply cable 22 having such a configuration is placed on the base portion 24 to which the hot magnet 23 and the earth magnet 25 are fixed, the power supply cable 22 is fixed to the power supply portion 20 by itself.

  That is, the ground pipe 27 in the power feeding cable 22 is attracted to the recess formed in the grounding magnet 25, the core wire pipe 26 is attracted to the hot magnet 23, and the power feeding cable 22 is fixed to the power feeding section 20. In this case, the entire surface of the hot magnet 23 and the ground magnet 25 is subjected to a conductive treatment such as nickel plating, and the core wire 22a of the power supply cable 22 is electrically connected to the hot magnet 23 via the core wire pipe 26. The braided wire 22c is electrically connected to the grounding magnet 25 through the ground pipe 27. Thus, the power feeding cable 22 can be easily fixed to the power feeding unit 20.

  Furthermore, by inserting the element magnet 12 of the antenna element unit 10 through the opening provided in the power supply case 21 of the power supply unit 20 and attracting it to the hot magnet 23, Electrical connection is made. When attracted, the insertion portion 12 a protruding from the element magnet 12 is inserted into the mounting hole 23 a formed in the hot magnet 23 and mounted. As a result, the element 15 a is electrically connected to the core wire 22 a of the power supply cable 22 via the element magnet 12 and the hot magnet 23. At this time, since the power feeding unit 20 is attracted onto the sash 2 or the ground plate 30, the braided wire 22 c of the power feeding cable 22 is connected to the sash 2 or the ground plate 30 and functions as a ground for the antenna element unit 10. To come.

FIGS. 13A, 13B, and 13C show the configuration of the ground plate 30. FIG. 13A is a front view showing the configuration of the ground plate 30, FIG. 13B is a bottom view showing the configuration of the ground plate 30, and FIG. 13A is a side view showing the configuration of the c ground plate 30. FIG.
As shown in these figures, the ground plate 30 having a long and narrow rectangular shape is made of a ferromagnetic material, and a double-sided tape 30a is provided on the back surface. The double-sided tape 30a may be an insulating tape or a conductive tape. The length of the long side of the ground plate 30 is about λ / 4 or more when the wavelength of the center frequency of the used frequency band is λ, and the length of the short side of the ground plate is about λ / 60 or more. . The ground plate 30 may be formed by applying nickel plating to the surface of a metal plate such as a brass plate or a resin plate.

A mode in which the glass-attached antenna of Example 2 of the present invention is installed in a glass window for a building is shown in FIG.
In the glass affixed antenna 5 according to the second embodiment of the present invention shown in this figure, the antenna element portion 50 includes a bendable relay element 54, and the antenna element portion 50 is connected to the power feeding portion 20 via the relay element 54. Yes. As described above, the configuration of the antenna element unit 50 is different from that of the first embodiment. The configuration of the antenna element unit 50 will be described below, and the description of other configurations will be omitted. In addition, although the glass sticking antenna 5 is installed so that the antenna element part 50 may become horizontal, it can also be installed so that the antenna element part 50 may become vertical as shown with a broken line in FIG.

The structure of the antenna element part 50 in the glass pasting antenna 5 of Example 2 of this invention is shown in FIG. 15 thru | or FIG. 15 is a front view showing the configuration of the antenna element unit 50, FIG. 16 is a plan view showing the configuration of the antenna element unit 50, and FIG. 17 is a side view showing the configuration of the antenna element unit 50.
As shown in these drawings, the antenna element portion 50 includes an elongated rectangular parallelepiped antenna case portion 51 in which the element is incorporated, and the antenna element portion 50 is attached to and detached from the window glass 3 on the lower surface of the antenna case portion 51. A pair of suction cups 53 that can be fixed is provided. A relay element 54 having a predetermined length that can be bent is led out from one end of the element from one side surface having a short side of the antenna case portion 51, and an element magnet 52 is attached to the tip of the relay element 54. The element magnet 52 is formed with an insertion portion 52a protruding therefrom. The element magnet 52 can be attracted to the hot magnet 23 in the power feeding unit 20. The element magnet 52 may be made of a ferromagnetic material instead of the magnet.

FIG. 18 is a front view showing another configuration of the antenna element unit 50. In the antenna element unit 50, a double-sided tape 55 is provided on the lower surface of the antenna case unit 51 instead of the pair of suction cups 53. The antenna element unit 50 is fixed on the window glass 3 by the double-sided tape 55.
As described above, the relay element 54 is provided in the antenna element portion 50 because a step is generally generated between the window glass 3 and the sash 2, and this step depends on the thickness and specifications of the window glass. This is because each type may be different. Therefore, in the glass-attached antenna 5 of Example 2 of the present invention, when there is a step between the window glass 3 and the sash 2, the step is formed regardless of the height of the step by bending the relay element 54. So that it can be absorbed.

The detailed structure in the antenna element part 50 in the glass sticking antenna 5 of Example 2 of this invention is shown in FIG.
As shown in FIG. 19, the element 56a is formed on a dielectric substrate 56b. The dielectric substrate 56b can be a film made of polyimide, PET, or the like. In this case, the dielectric substrate 56b is a film antenna made of the dielectric substrate 56b on which the element 56a is formed. The dielectric substrate 56b may be a Teflon substrate. Thus, one end of the relay element 54 is connected to the element 56a formed on the dielectric substrate 15b by soldering or the like. The relay element 54 has a structure in which an annealed copper wire such as a single wire or a stranded wire is covered with an outer sheath, and the other end of the relay element 54 is inserted into a fitting insertion portion 52 b formed to protrude from one surface of the element magnet 52. Connected by soldering. In this case, the entire surface of the element magnet 52 is subjected to a conductive treatment such as nickel plating. As a result, the element 56a and the element magnet 52 are connected via the relay element 54, housed in the antenna case portion 51, and become the antenna element portion 50 shown in FIGS. In addition, you may make it cover the part of the relay element 54 connected to the insertion part 52b with the protection tube 52c.

Another configuration example of the element 56a is shown in FIG. The element 56a ′ shown in FIG. 20 is configured to cover a soft copper wire such as a single wire or a stranded wire with an outer skin, and also serves as a relay element 54. That is, the element 56 a ′ is fixed in the antenna case portion 51, and an end portion thereof is led out from the antenna case portion 51 as the relay element 54. This tip is inserted into a fitting insertion portion 52b formed so as to protrude from one surface of the element magnet 52 and connected by soldering or the like. Thus, the element 56a ′ can also serve as the relay element 54.
FIG. 21 shows still another configuration example of the element 56a. The element 56a ″ shown in FIG. 21 is made of a flexible material such as a film, a copper plate, or a phosphor bronze plate, and also serves as a relay element 54. That is, the element 56a ″ is fixed inside the antenna case portion 51. The end portion is led out as a relay element 54 from the antenna case portion 51. This tip is inserted into a fitting insertion portion 52b formed so as to protrude from one surface of the element magnet 52 and connected by soldering or the like. Thus, the element 56a ″ can also serve as the relay element 54.

FIG. 22 shows a side view of an aspect in which the glass-attached antenna of Example 2 of the present invention configured as described above is installed in a glass window for a building. However, in FIG. 22, the sash 2 and the window glass 3 are shown in section.
As shown in FIG. 22, there is a step between the window glass 3 and the sash 2, and the antenna element portion 50 is fixed by a suction cup 53 on the window glass 3 that is one step lower. A ground plate 30 is fixed to one surface of the sash 2, and the power feeding unit 20 is adsorbed and fixed to the ground plate 30. The relay element 54 led out from the antenna element portion 50 is bent to overcome the step, and the element magnet 52 provided at the tip of the relay element 54 is attracted to the hot magnet 23 of the power feeding portion 20. Thus, the step between the sash 2 and the window glass 3 can be absorbed by the relay element 54, and the glass-attached antenna according to the second embodiment of the present invention has a height difference even when the glass window has a step. It becomes possible to install easily without depending on.

  In the above description, the glass pasted antenna for a window glass of a building has been described.

It is a figure which shows the aspect by which the glass sticking antenna of Example 1 of this invention is installed in the glass window for buildings. It is a front view which shows the structure of the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a top view which shows the structure of the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a side view which shows the structure of the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a front view which shows the other structure of the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a figure which shows the detailed structure in the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a front view which shows the structure of the electric power feeding part in the glass sticking antenna of this invention. It is a side view which shows the structure of the electric power feeding part in the glass sticking antenna of this invention. It is a rear view which shows the structure of the electric power feeding part in the glass sticking antenna of this invention. It is a bottom view which shows the structure of the electric power feeding part in the glass sticking antenna of this invention. It is a figure which shows the internal structure of the electric power feeding part in the glass sticking antenna of this invention. It is a figure which shows the structure of the electric power feeding cable in the glass sticking antenna of this invention. It is a figure which shows the structure of the earth board in the glass sticking antenna of this invention. It is a figure which shows the aspect by which the glass sticking antenna of Example 2 of this invention is installed in the glass window for buildings. It is a front view which shows the structure of the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a top view which shows the structure of the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a side view which shows the structure of the antenna element part in the glass sticking antenna of Example 1 of this invention. It is a front view which shows the other structure of the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a figure which shows the detailed structure in the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a figure which shows the other structural example of the element in the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a figure which shows the further another structural example of the element in the antenna element part in the glass sticking antenna of Example 2 of this invention. It is a figure which shows the side view of the aspect with which the glass sticking antenna of Example 2 of this invention is installed in the glass window for buildings. It is a figure which shows the structure of the glass antenna provided in the window glass for conventional buildings.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Glass pasted antenna, 2 sash, 3 window glass, 5 glass pasted antenna, 10 antenna element part, 11 antenna case part, 12 element magnet, 12a insertion part, 12b insertion part, 13 sucker, 14 double-sided tape, 15a, 15a 'element, 15b dielectric substrate, 20 power supply section, 21 power supply case section, 22 power supply cable, 22a core wire, 22b insulation section, 22c braided wire, 22d jacket, 23 hot magnet, 23a mounting hole, 24 base section, 25 Ground magnet, 26 Core pipe, 27 Ground pipe, 28 Connector, 30 Ground plate, 30a Double-sided tape, 31 TV monitor, 40 Booster, 50 Antenna element section, 51 Antenna case section, 52 Element magnet, 52a Insert section, 52b Insertion part, 52c Protection tube, 53 Suction cup, 54 Relay element, 55 Double-sided tape, 56a, 56a ', 56a "element, 56b Dielectric substrate, 101 Window glass, 102 Loop antenna, 103 Feed point, 104 Sash, 105 Saddle, 106 coaxial cable

Claims (6)

An antenna element portion that can be fixed on a glass plate in a glass window;
A power supply portion that can be fixed to a window frame that holds the glass plate in the glass window;
The power feeding unit includes a grounding magnet that is attracted to the window frame that serves as a ground for the antenna element part, and a hot magnet that is attracted to one end of the element in the antenna element part, and is led out from the power feeding part. A glass-attached antenna, wherein a ground portion of a power supply cable is connected to the grounding magnet, and a center conductor of the power supply cable is connected to the hot magnet.   2. The glass-attached antenna according to claim 1, wherein a grounding plate capable of attracting the grounding magnet is fixed on the window frame, and the grounding magnet is attracted to the grounding plate.   2. The glass pasted antenna according to claim 1, wherein an element attracting portion is attached to one end of the element, and the element attracting portion is attracted to the hot magnet.   A ferromagnetic pipe is fitted to the ground portion and the center conductor of the power supply cable, and the ground portion is attracted to the ground magnet, and the center conductor is attracted to the hot magnet. The glass affixed antenna according to claim 1, wherein the glass affixed antenna is mechanically and mechanically connected to the feeding portion.   The glass-attached antenna according to claim 1, wherein the antenna element portion is housed in a case, and a suction cup for detachably fixing the case to the glass plate is provided on one surface of the case. The glass pasted antenna according to claim 3, wherein one end of the element and the element adsorption portion are connected by a bendable relay element.

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