JP2003163523A - Glass antenna for vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a glass antenna for vehicles e.g. automobiles to have a good receiving performance even if the glass antenna is installed on either portion of the top edge side region or the bottom edge side region or mid-region of side window glass. <P>SOLUTION: The glass antenna installed on a vehicle side window and more suitable for receiving of AM/FM radio is composed of a main element which has feeding points disposed approximately at desired positions of a vertical edge of a window glass and at least one or more horizontal lines installed with direct extension or via leads from the feeding points, and a sub-element comprised of T-shaped or L-shaped lines coupled to a midpoint or an end of a bottom line or/and a top line of the horizontal lines. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass antenna provided in a narrow area of a side window glass for vehicles such as automobiles, and particularly to a part of the side window glass near the upper side and a part of the lower side window. Good reception performance can be obtained even with a glass antenna provided in a region or a part of the middle portion.

[0002]

2. Description of the Related Art Conventionally, as a glass antenna for a vehicle, an antenna provided in an upper margin portion or a lower margin portion of a conductive wire for heating a rear window glass, and an antenna provided with a linear antenna on a front window glass have been used. It is known and has been put into practical use, but the antenna provided on the rear window glass of the former has a small space due to the provision of anti-fogging heating wires, etc. Therefore, the area where the antenna can be arranged becomes small, and when the antenna is arranged in this area, a sufficient reception gain cannot always be obtained.

Further, the latter antenna provided on the front window glass has a relatively high reception gain, but has a restriction on the mounting place more than the rear window glass so as not to hinder the driver's view.

Further, in the case of an RV car, most of the rear window glass can be opened and closed. When the rear window glass is opened and closed, the coaxial cable or the like wired from the antenna provided on the rear window glass is repeatedly bent by opening and closing. It is easy to cause a failure.

Even if it is a type that does not open and close, since the area where the antenna can be arranged on the rear window glass is small and the mounting angle is close to a right angle, the upper margin portion or the lower margin portion of the anti-fogging heating wire is The antenna occupies a small area, and even if an antenna wire is provided at this location, sufficient reception gain cannot be obtained, and AM radio broadcast waves and FM with low reception frequencies are received.
In the case of an antenna wire that receives radio broadcast waves, the effect becomes noticeable.

Therefore, there are almost no such restrictions,
Moreover, R with a relatively large side window glass attached
With the spread of V cars and the like, an antenna for receiving a radio broadcast provided on a side window glass has been attracting attention and demanded.

As the glass antenna provided on the side window glass, for example, the one disclosed in Japanese Patent Application Laid-Open No. 10-93317 is such that the antenna element is arranged along the edge of the window frame of the side glass for almost one round. The power supply terminal of is placed close to one corner of the side glass,
A in which 5 or more horizontal elements are arranged at intervals of 5 mm or more
A side glass antenna for the M and FM bands is disclosed.

The device disclosed in Japanese Unexamined Patent Publication No. 10-303625 discloses a first antenna conductor, a second antenna conductor, a third antenna conductor, and a first feeding point provided on a window glass plate of a vehicle. , A second feeding point, the first antenna conductor is provided with a plurality of antenna elements substantially in parallel, and the plurality of antenna elements are connected at one end side of each of the plurality of antenna elements. The antenna conductor is a semi-looped antenna conductor that extends from the first feeding point and is provided so as to surround the first antenna conductor.
There is disclosed a vehicle glass antenna for receiving AM broadcast, FM broadcast, and TV broadcast, in which the antenna conductor and the at least one of the plurality of antenna elements are electrically connected.

Further, Japanese Patent Application Laid-Open No. 10-13 filed by the present applicant
No. 127 discloses a first horizontal filament extending along a lower side or an upper edge from a power feeding portion arranged at one corner of a vehicle side window glass, and one side from the first horizontal filament. A first vertical line extending along the side to almost the center, a second horizontal line extending horizontally from the first vertical line to the center, and a second horizontal line extending from the second horizontal line to the other side. A second vertical filament extending to the upper side or the lower side opposite to the first horizontal filament, and a third vertical filament extending from the second vertical filament to the upper side or the lower edge opposite to the first horizontal filament. Discloses a glass antenna for an automobile, which is suitable for receiving AM radio broadcast waves and FM radio broadcast waves and which is provided with at least the horizontal stripes.

When an AM radio broadcast wave antenna is provided on the side window glass, it is generally used after being amplified by an amplifier.

[0011]

As described above, the antenna for receiving the AM / FM radio provided on the side window glass,
A common method is to perform diversity reception using an antenna for a television broadcast wave provided in a blank portion above or below a heating conductive wire of a conventional rear window glass.

However, in the rear window glass, the space for installing the antenna is limited in order to provide the anti-fogging heating wire for securing the rear view in a large area of the rear window glass.

Further, when a rear wiper or various electric components are provided near the rear window glass, the influence of these causes
It has become possible to find problems such as noise on the television broadcasting antenna provided on the rear window glass.

Therefore, it is considered to move the television broadcasting antenna provided on the rear window glass to the margin of the side window glass, but the glass antenna for AM / FM is provided over almost the entire surface of the side window glass. Since it is arranged, there is a problem that a space for installing an antenna for television broadcasting cannot be secured.

In addition, in a slight margin of the AM / FM broadcast receiving antenna provided almost all over the side window glass,
When a television broadcast receiving antenna is provided, it interferes with each other, making it difficult to tune and to improve the gain.

In short, the above-mentioned JP-A-10-93317, JP-A-10-303625 and JP-A-10-
In all of the devices disclosed in Japanese Patent No. 13127, an antenna wire is provided over substantially the entire side window glass of a vehicle, and it is not possible to secure a margin provided so as not to cause interference with a television broadcast receiving antenna. .

[0017]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended for AM / FM in a part such as an upper or lower surface of a side window glass for a vehicle rather than the entire surface. It is an object of the present invention to be able to receive AM / FM radio broadcast waves with high sensitivity and to secure a space for installing another antenna such as a television simply by effectively disposing an antenna wire.

That is, the present invention provides a glass antenna suitable for receiving radio waves for AM / FM radio broadcasting provided in a side window for a vehicle, in which a feeding point is provided near a desired position on a vertical side of the window glass, A main element in which at least one horizontal filament is provided at a distance from the feeding point directly or via a lead wire, and a T-shape connected to the middle or tip of the bottom line and / or the top line of the horizontal filament. Alternatively, it is a glass antenna for a vehicle, characterized in that it is a sub-element comprising an L-shaped wire.

In the present invention, as a sub-element connected to the lowermost line and / or the uppermost line of the horizontal line of the main element, midway or at the tip, a T-shaped line is further formed at the tip of the L-shaped line. It is a glass antenna for vehicles as described above, characterized in that it is a wire connecting the wires.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The glass antenna 3 of the present invention has an area which is approximately half or less than that of a vehicle side window glass, and is closer to the upper side.
Alternatively, as shown in FIGS. 1 to 4, near the lower side or in the middle thereof, the AM / F is attached to the window glass plate 1 on the side of the vehicle having a substantially quadrilateral shape.
A pattern suitable for receiving radio waves for M radio broadcasting is provided, and a feeding point 2 is provided in the vicinity of a vertical side on one side of the window glass plate 1, and the feeding point 2 is provided directly from the feeding point 2 or via a lead wire 4c. A main element 4 in which at least one or more horizontal filaments 4a, 4b are provided up to the vicinity of the vertical sides facing each other with a spacing;
It is composed of a sub-element 5 consisting of a T-shaped or L-shaped linear line connected to the middle or the tip of the lowermost line and / or the uppermost line of the horizontal linear lines 4a and 4b.

The position of the feeding point 2 is determined by the side window glass 1 described above.
It may be located at any position near the vertical side on one side.

The main element 4 has at least one or more, preferably two horizontal filaments 4a and 4b from the feeding point 2 directly or through a lead wire 4c, up to the vertical sides facing each other with a predetermined range. It is provided.

Furthermore, when the main element 4 is above the side window glass, the sub-element 5 consisting of the T-shaped or L-shaped linear strips of the horizontal linear strips 4a, 4b of the main element 4 is formed. You may connect the sub-element 5 which consists of a T-shaped or L-shaped filament in the middle or the tip of the bottom line.

Alternatively, in the case where the main element 4 is below the side window glass, a T-shaped or L-shaped linear line is formed in the middle or at the tip of the uppermost line of the horizontal linear lines 4a, 4b of the main element 4. You may connect the sub-element 5 which consists of.

Alternatively, when the main element 4 is located at a position midway up and down the side window glass, the horizontal lines 4a and 4b of the main element 4 are in the middle or at the top of the horizontal lines 4a and 4b, or at the bottom of the bottom line. It may be connected to either one of the tips or both above and below.

Further, the horizontal filaments 4a, 4 of the main element 4 are
When the distance between a plurality of b's or the horizontal stripe 5b of the sub-element 5 and the horizontal stripe of the main element 4 is set to a width of 30 to 150 mm, the TV antenna arrangement for improving the AM band gain is set. This is preferable because it can secure an installation area.

Further, the glass antenna 3 of the present invention has an L-shaped linear strip as the sub-element 5 to be connected to the middle or tip of the lowermost line and / or the uppermost line of the horizontal linear lines 4a and 4b of the main element 4. Alternatively, a T-shaped wire may be further connected to the tip of the wire.

That is, when the main element 4 is above the side window glass, an L-shaped line and a T-shaped line are formed in the middle or at the tip of the bottom line of the horizontal lines 4a and 4b of the main element 4. You may connect the sub-element 5 which combined the line of.

Alternatively, when the main element 4 is below the side window glass, an L-shaped line and a T-shaped line may be formed in the middle or at the tip of the uppermost line of the horizontal lines 4a and 4b of the main element 4. You may connect the sub-element 5 which combined the line of.

Further, when the main element 4 is located at an intermediate position in the vertical direction of the side window glass, the horizontal stripes 4a, 4b of the main element 4 are in the middle or at the tip of the uppermost line or the horizontal stripe of the main element 4. The sub-elements 5 may be provided in the middle or at the tips of the bottom lines of 4a and 4b, or both above and below.

In this way, in the antenna of the present invention, the region surrounded by the main element 4 and the sub-element 5 is a part of the upper side of the side window glass, or a part of the lower side of the side window glass, or Each antenna element is arranged so as to be in a partial area of the central portion.

It goes without saying that the pattern of the present invention may have a symmetrical positional relationship with respect to the vertical direction.

Next, the operation of the present invention will be described.

Generally, in the reception of the AM radio broadcast wave band, the larger the area of the area surrounded by each element of the antenna is, the higher the receiving sensitivity is. It is said that the number of elements in the area surrounded by the elements greatly affects the reception sensitivity, the larger the number of elements, the better the reception sensitivity, and the further away from the metal body can improve the reception sensitivity.

On the other hand, it is generally well known that the length and shape of elements greatly affect reception of the FM radio broadcast wave band.

Therefore, when the reception antenna of the FM / AM radio broadcast wave band is also used, the antenna element is arranged in consideration of the balance of the reception sensitivities of the FM radio broadcast wave band and the AM radio broadcast wave band. There is a need.

The main element 4 has at least one or more, preferably two horizontal filaments 4a and 4b, directly or through the lead wire 4c, from the feeding point 2 up to the vertical sides facing each other with a predetermined range. It is provided and is an effective element for appropriately receiving radio waves in the FM radio broadcast wave band.

In the FM radio broadcasting wave band, the element length is
When it is set to αλ / 4 (α: wavelength shortening rate), frequency resonance can be achieved, and the highest reception gain can be obtained. That is, for example, when the frequency is set to 80 MHz, the horizontal filaments 4a and 4b are
By making the length of one element of about 650 mm, frequency resonance can be achieved.

Furthermore, the horizontal filament 4 of the main element 4
The sub-element 5 consisting of a T-shaped or L-shaped connected to the middle or the tip of the bottom line and / or the top line of a and 4b, or a line formed by combining these, adjusts the length and spacing of these elements. This is an element effective for adjusting impedance in the FM radio broadcast wave band and improving reception gain of radio waves in the AM radio broadcast wave band.

In the reception of the AM radio broadcast wave band, the size (area) of the antenna element is increased,
By increasing the distance from the flange, the reception level can be improved, and the main element 4 for improving the reception sensitivity of the radio waves in the FM radio broadcast wave band can be used for reception in the AM radio broadcast wave band. By providing the sub-element 5, it is possible to further improve the reception sensitivity in the AM radio broadcast wave band.

Thus, as shown in FIGS.
A main element 4 consisting of one or more, preferably two horizontal filaments 4a, 4b, and a T-shaped or L-shaped element in the middle of one of the horizontal filaments 4a, 4b or at its tip,
Alternatively, the antenna of the present invention is connected to a part of the upper side of the vehicle side window glass, a part of the lower side of the window glass, or the upper and lower sides by connecting the sub-element 5 consisting of a combination of these lines. By providing the antenna in a part of the area in the middle of the direction, an antenna for television broadcasting can be provided in the remaining blank area.

Further, the antenna 3 of the present invention is provided on either the left or right side window glass of the vehicle, and the AM radio broadcast wave,
It may be received alone when receiving FM radio broadcast waves, but F
When receiving M radio broadcast waves, a glass antenna for receiving FM radio broadcast waves provided on the other side window glass (the antenna having the configuration of the present invention is preferable, but glass antennas of other configurations may of course be used), or It is preferable to perform diversity reception in combination with a glass antenna provided on the rear window glass, a glass antenna provided on the front window glass, or the like.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings.

1 to 4 are examples in which the glass antennas of Examples 1 to 4 of the present invention are provided together with a power feeding portion on the vehicle interior surface of a window glass attached to a side window for a vehicle.

Embodiment 1 As shown in FIG. 1, a feeding point 2 is provided in the upper left corner of a substantially rectangular vehicle side window glass 1, and a first horizontal line extends from the feeding point 2 to the vicinity of the upper right corner. The line 4a is provided, and the end of the second horizontal line 4b, which is provided in parallel to the first horizontal line 4a with an interval of 40 mm, on the feeding point 2 side is connected to the feeding point 2 via the lead wire 4c. The first horizontal line 4a and the second horizontal line 4b are used as the main element 4.

From the middle of the second horizontal line 4b located below the main element 4, the vertical line 5a and the horizontal line 5b are inserted.
Inverted T-shaped sub-elements 5 consisting of and are connected.

By adopting such an antenna pattern, A can be set only in a part of the upper window of the side window glass.
It can be used as an antenna for receiving M / FM radio, and a large blank area on the lower side can be utilized by another antenna such as a TV.

Before bending the glass plate on which the antenna pattern thus constructed is to be arranged, each line is screen-printed with a conductive material such as silver paste with a line width of 0.5 to 1 mm. It was formed by firing and bending in a bending furnace at the same time.

The glass plate thus obtained was mounted on the side window of an automobile.

The lengths and intervals of the conductive wires of Example 1 are as follows.

The dimensions of the inner edge of the body flange are such that the upper side A = 700 mm, the lower side A ′ = 700 mm, the left vertical side B = 550 mm and the right vertical side B ′ = 550 mm when viewed from the inside of the vehicle.

The distance from the upper side A of the opening of the flange to the first horizontal filament 4a = 20 mm, the length of the first horizontal filament 4a of the main element 4 = 65
0 mm Length of the second horizontal filament 4b = 650 mm Distance between the two horizontal filaments 4a and 4b = 40mm Length of the vertical filament 5a of the sub-element 5 = 50mm From the tip of the vertical filament 5a to the feeding point 2 side Length of horizontal filament 5b extending = 300 mm, length of horizontal filament 5b extending from the tip to the side opposite to the feeding point = 3
50 mm, by the glass antenna 3 of the present invention, domestic 76 MHz ~
The frequency characteristic when receiving the radio wave in the 90 MHz FM radio band is 0d when the reception gain of the standard dipole antenna is 0d.
When expressed as a gain difference with B, the average value of the horizontally polarized waves in the domestic frequency band was -18.1 dB, and a reception gain that could be put to practical use was obtained.

Regarding domestic AM radio bands,
By amplifying with an amplifier, a reception gain equivalent to that of an 880 mm pole antenna was obtained. In the case of the FM radio band, you may amplify with an amplifier as needed.

As shown in FIG. 1, the antenna according to the first embodiment of the present invention provides sufficient reception performance only in a part of the upper portion of the window glass for a vehicle. Another antenna may be provided, for example an antenna for receiving TV broadcasts as indicated by numerals 8 and 9.

Embodiment 2 As shown in FIG. 2, a feeding point 2 is provided in the middle of the left vertical side of a vehicle side window glass 1 having a substantially rectangular shape, and a leader line 4c extending slightly above the feeding point 2 is provided. The first horizontal linear strip 4a is provided to the vicinity of the right vertical side through the second horizontal linear strip 4a, and the second horizontal linear strip 4c is extended via the lead wire 4c extending slightly below the feeding point 2.
b is provided, and these two horizontal filaments 4a and 4b are used as the main element 4.

An L-shaped sub-element consisting of a vertical line 5a and a horizontal line 5b bent from the tip of the second horizontal line 4b located below the main element 4 to the side of the first horizontal line 4a. 5 are connected.

With such an antenna pattern, the antenna for AM / FM radio reception can be formed only in a partial area near the vertical center of the side window glass. The blank area can be used by another antenna such as a TV.

As in Example 1, the antenna pattern having the above-described structure was formed on the glass plate with each line having a line width of 0.
It was formed by screen-printing with a conductive material such as a silver paste at a thickness of 5-1 mm and firing at the same time as bending in a bending furnace.

The lengths and intervals of the conductive wires in Example 2 are as follows.

The dimensions of the inner edge of the body flange thus obtained were the same as in Example 1, and the body flange was mounted on the side window glass of an automobile.

Distance from upper opening of flange to upper horizontal filament 4a = 230 mm, length of first horizontal filament 4a of main element 4 = 58
0 mm Length of second horizontal filament 4b = 650 mm Distance between two horizontal filaments = 80 mm Length of vertical filament 5a of sub-element 5 = 3
0 mm Length of horizontal filament 5b = 300 mm, with domestic glass antenna of 76 MHz-9 by the glass antenna of the present invention.
The frequency characteristic when receiving the radio wave of the 0 MHz band FM radio band is 0 dB when the reception gain of the standard dipole antenna is set.
When expressed as the gain difference, the average value of the horizontal polarization in the domestic frequency band was -17.3 dB, the same reception performance as that of Example 1 was obtained, and the reception gain that could be put to practical use was obtained. .

Furthermore, regarding domestic AM radio bands,
By amplifying with an amplifier as in Example 1, 88
A reception gain equivalent to that of a 0 mm pole antenna was obtained.
In the case of the FM radio band, you may amplify with an amplifier as needed.

Embodiment 3 As shown in FIG. 3, a feeding point 2 is provided in the vicinity of the lower corner of the left vertical side of a substantially rectangular vehicle side window glass, and a drawer extending slightly below the feeding point 2 is provided. The first horizontal filament 4a is provided to the vicinity of the right vertical side via the line 4c, and the lead wire 4 is further provided.
A second horizontal filament 4b was provided in the middle of c, and these two horizontal filaments 4a and 4b were used as the main element 4.

An L-shaped sub-element 5 composed of a vertical linear strip 5a and a horizontal linear strip 5b is connected to the upper margin side of the second horizontal linear strip 4b located above the main element 4 from the middle thereof. .

By adopting such an antenna pattern, it is possible to set A in only a part of the lower window of the side window glass.
It can be used as an antenna for receiving M / FM radio, and the large margin on the upper side can be used as another antenna such as a TV.

The antenna pattern constructed in this manner was formed on the glass plate in the same manner as in Example 1 with each line having a line width of 0.
It was formed by screen-printing with a conductive material such as a silver paste at a thickness of 5-1 mm and firing at the same time as bending in a bending furnace.

The lengths and intervals of the conductive wires of Example 3 are as follows.

The inner edge of the body flange thus obtained had the same dimensions as in Example 1, and was mounted on a side window glass of an automobile.

Distance from opening of lower side of flange to first horizontal filament 4a = 30 mm, length of first horizontal filament 4a of main element 4 = 63
0 mm Length of second horizontal filament 4b = 630 mm Distance between two horizontal filaments = 70 mm Length of vertical filament 5a of sub-element 5 = 4
0 mm Length of horizontal filament 5b = 450 mm, by domestic glass antenna of the present invention 76 MHz-9
The frequency characteristic when receiving the radio wave of the 0 MHz band FM radio band is 0 dB when the reception gain of the standard dipole antenna is set.
When expressed as a gain difference, the average value of the horizontal polarization in the domestic frequency band was -19.4 dB, and the reception performance equivalent to that in Example 1 was obtained, and the reception gain that could be put to practical use was obtained. .

Regarding the domestic AM radio band,
By amplifying with an amplifier as in Example 1, 88
A reception gain equivalent to that of a 0 mm pole antenna was obtained.
In the case of the FM radio band, you may amplify with an amplifier as needed.

Embodiment 4 As shown in FIG. 4, a feeding point 2 is provided near the upper corner of the left vertical side of a substantially rectangular vehicle side window glass, and an upper corner on the right vertical side of the feeding point 2 is provided. Horizontal line 4a is provided up to the vicinity, and this 1
The horizontal filament 4a of the book was used as the main element 4.

An L-shaped sub-element 5 consisting of a vertical linear strip 5a and a horizontal linear strip 5b is connected from the middle of the first horizontal linear strip 4a of the main element 4 to the lower margin side, and the vertical line is further attached to the tip thereof. Another sub-element 5'in the shape of an inverted T, which is composed of a strip 5a 'and a horizontal strip 5b', is connected.

By using such an antenna pattern, an antenna for AM / FM radio reception can be provided only in a part of the area near the upper side of the side window glass 1.
The large blank area on the lower side can be used by another antenna such as a TV.

As in Example 1, the antenna pattern thus constructed was formed on the glass plate with each line having a line width of 0.
It was formed by screen-printing with a conductive material such as a silver paste at a thickness of 5-1 mm and firing at the same time as bending in a bending furnace.

The lengths and intervals of the conductive wires of Example 4 are as follows.

The inner edge of the body flange thus obtained had the same dimensions as in Example 1, and was mounted on a side window glass of an automobile.

Distance from opening of upper side of flange to first horizontal filament 4a = 40 mm, length of first horizontal filament 4a of main element 4 = 6
50 mm Length from feeding point to vertical filament 5a = 500 mm Length of vertical filament 5a of sub-element 5 =
50 mm Length of horizontal filament 5b = 400 mm, length of vertical filament 5a 'of sub-element 5' =
50 mm, length of horizontal filament 5b ′ = 650 mm With the glass antenna of the present invention, domestic 76 MHz to 9 MHz
The frequency characteristic when receiving the radio wave of the 0 MHz band FM radio band is 0 dB when the reception gain of the standard dipole antenna is set.
When expressed as a gain difference, the average value of the horizontal polarization in the domestic frequency band was -19.4 dB, and the reception performance equivalent to that in Example 1 was obtained, and the reception gain that could be put to practical use was obtained. .

Further, regarding the domestic AM radio band,
By amplifying with an amplifier as in Example 1, 88
A reception gain equivalent to that of a 0 mm pole antenna was obtained.
In the case of the FM radio band, you may amplify with an amplifier as needed.

[0079]

According to the glass antenna of the present invention, not a whole area of the side window glass for a vehicle but a part of the area near the upper side,
Alternatively, even if the antenna is arranged only in a part of the area near the bottom or in the area near the middle of the vertical direction, FM / AM radio broadcast waves can be received with high sensitivity, and the upper part Alternatively, it is possible to secure a space for installing another antenna for receiving television broadcast radio waves in the blank space on the lower side.

[Brief description of drawings]

FIG. 1 is a front view in which the pattern of Example 1 is arranged on a side window glass.

FIG. 2 is a front view in which the pattern of Example 2 is arranged on a side window glass.

FIG. 3 is a front view in which the pattern of Example 3 is arranged on a side window glass.

FIG. 4 is a front view in which the pattern of Example 4 is arranged on a side window glass.

[Explanation of symbols]

1 plate glass 2 power supply points 3 Antenna of the present invention 4 main elements 4a First horizontal line 4b Second horizontal line 4c Leader 5 sub-elements 5a, 5a 'vertical line 5b, 5b 'horizontal line 6 Flange frame 8, 9 TV receiving antenna

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mitsuhisa Maekawa             2 Centra, 1521 Oguchi-cho, Matsusaka City, Mie Prefecture             Le Glass Co., Ltd. Matsusaka factory (72) Inventor Masahiro Onishi             Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan             Inside the automobile corporation (72) Inventor Hiroyasu Matsui             Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan             Inside the automobile corporation F term (reference) 5J021 AA02 AA11 AB02 DB07 FA32                       HA10 JA03 JA07                 5J046 AA03 AA07 AB10 AB17 LA05                       LA06 LA08                 5J047 AA03 AA07 AB10 AB17 EC02

Claims (2)

[Claims] 1. A glass antenna suitable for receiving radio waves for AM / FM radio broadcasting provided on a side window for a vehicle, wherein a feeding point is provided in the vicinity of a desired position on the vertical side of the window glass, and the feeding point is provided directly from the feeding point. Alternatively, a main element provided with at least one or more horizontal filaments at intervals via a leader line and a T-shaped or L-shaped element connected to the middle or tip of the bottom line and / or the top line of the horizontal filaments. A glass antenna for a vehicle, characterized in that it is a sub-element consisting of a wire. 2. A T-shaped line is further connected to the tip of the L-shaped line as a sub-element connected to the middle or the tip of the bottom line and / or the top line of the horizontal line of the main element. The glass antenna for a vehicle according to claim 1, wherein the glass antenna is a wire.