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Glass antenna

A glass antenna and glass surface technology, which is applied to antennas, antenna parts, independent antenna unit combinations, etc., to achieve the effect of reducing man-hours

Inactive Publication Date: 2012-04-11
NIPPON SHEET GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a disadvantage of requiring an installation space for this high frequency choke coil 129

Method used

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  • Glass antenna
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] First, based on Figure 1 to Figure 6 Example 1 will be described.

[0056] figure 1 It is a figure which shows the antenna pattern of the glass antenna of Example 1, Here, the antenna pattern of a side feeding is illustrated.

[0057] figure 1 Among them, the rear glass 10 is a glass surface of a rear window glass of a vehicle. The feeding point 20 is formed on the rear glass 10 and feeds power to each antenna pattern described later. Here, the feeding point 20 is formed at a side corner of the rear glass 10 (side feeding).

[0058] The AM / FM antenna unit 30 includes an AM antenna pattern 31 (first antenna pattern) that mainly receives the AM band and an FM antenna pattern 32 (second antenna pattern) that mainly receives the FM band.

[0059] The AM antenna pattern 31 includes a vertical conductor 310 extending vertically substantially at the center of the rear glass 10 and six horizontal conductors 311 to 316 perpendicular to the vertical conductor 310 and exten...

Embodiment 2

[0109] Below, refer to Figure 11 Example 2 will be described.

[0110] Figure 11 It is a figure which shows the antenna pattern of the glass antenna of Example 2.

[0111] like Figure 11 As shown, the glass antenna of Example 2 is in figure 1 The side feed antenna pattern shown in Example 1 has reception sensitivity adjustment elements 81 a , 81 b , and 81 c connected to part of the heater line 71 constituting the anti-fog heater 70 or the bus bar 72 . The reception sensitivity adjustment elements 81a, 81b, and 81c are connected to a part of the anti-fog heater 70, and the number and Any shape.

[0112] According to the glass antenna of the above-mentioned embodiment 2, in addition to the effect of the embodiment 1, after the AM / FM antenna pattern is formed by connecting the AM antenna pattern 31 and the FM antenna pattern 32 with the connecting wire 40, the receiving sensitivity is adjusted. The elements 81a, 81b, and 81c can finely adjust the receiving sensitivity,...

Embodiment 3

[0114] Below, refer to Figure 12 Example 3 will be described.

[0115] Figure 12 It is a figure which shows the antenna pattern of the glass antenna of Example 3.

[0116] like Figure 12 As shown, the antenna pattern of Example 3 is in Figure 4 The FM sub-antenna 90 is added to the upper antenna pattern of the first embodiment shown.

[0117] In addition, this FM sub-antenna 90 is capacitively coupled with the AM antenna pattern 31 similarly to the horizontal conductor 320 of the FM antenna pattern 32 constituting the AM / FM antenna unit 30. Figure 12 As shown, it is not necessary to form between the horizontal conductors 311 and 312 constituting the pattern 31 for the AM antenna, and it may be provided near the anti-fog heater 70, or may be formed by combining the mist heater 70 with the AM / FM antenna. The horizontal conductor 320 of the FM antenna pattern 32 of the portion 30 is capacitively coupled to form the FM sub-antenna 90 .

[0118] According to the above-me...

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Abstract

Disclosed is a glass antenna wherein two antennas, which are formed on a glass surface and have different receiving frequency bands, are integrated. In the glass antenna (30), the glass surface (10) includes a first antenna pattern (31), which is composed of one perpendicular conductive body (310) and a plurality of horizontal conductive bodies (311-316) orthogonally intersecting the perpendicular conductive body, and a second antenna pattern (32), which has a receiving frequency band different from that of the first antenna pattern and is composed of one horizontal conductive body (320) capacitively coupled with the first antenna pattern. One discretionary horizontal conductive body among the plurality of horizontal conductive bodies of the first antenna pattern is connected to a power feed point (20) by means of a connecting conductive line (40). Signals received by the first antenna pattern or the second antenna pattern are amplified by means of a shared amplifier (50).

Description

technical field [0001] The present invention relates to a glass antenna having an antenna pattern and a feeding point for feeding the antenna pattern formed on a glass surface. Background technique [0002] The glass antenna in which the antenna conductor is formed on the rear window glass of the vehicle has no protruding part in design compared with the conventional rod antenna, so it is superior in appearance. Furthermore, glass antennas are widely used because they are less likely to be broken and do not generate bagpipe noise. [0003] On the other hand, glass antennas equipped with AM / FM antennas are also popular. For example, Patent Document 1 discloses a glass antenna in which a high-frequency choke coil is inserted between a bus bar constituting a defogging heater and ground, and the defogging energized heating heater can be used as an antenna. [0004] if based on Figure 15 The glass antenna disclosed in Patent Document 1 will be described as follows. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/32H01Q1/22H01Q3/24H01Q5/10H01Q5/40
CPCH01Q1/1271H01Q1/1278H01Q21/30H01Q5/0072H01Q5/40
Inventor 田中浩辅
Owner NIPPON SHEET GLASS CO LTD
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