High frequency wave glass antenna for an automobile
First Claim
Patent Images
1. A high frequency wave glass antenna for an automobile, comprising:
- two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile;
an antenna conductor;
an antenna-conductor-side feeding electrode connected to the antenna conductor;
the antenna conductor and the antenna-conductor-side feeding electrode being disposed between the two glass sheets; and
a receiver-side feeding electrode disposed at a position to confront the antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass;
wherein the antenna conductor is configured to receive at least one of a digital television broadcasting frequency band and a UHF television broadcasting frequency band;
wherein each of the antenna-conductor-side feeding electrode and the receiver-side feeding electrode has an area of from 49 to 2,500 mm2; and
wherein a distance between the antennas-conductor-side feeding electrode and the receiver-side feeding electrode is set so that both electrodes form at least one of electromagnetic coupling and capacitive coupling; and
wherein a received signal excited in the antenna conductor is transmitted through the antenna-conductor-side feeding electrode to the receiver-side feeding electrode.
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Accused Products
Abstract
In a high frequency wave glass antenna for an automobile, wherein an antenna conductor and an antenna-conductor-side feeding electrode connected to the antenna conductor are provided to a laminated glass sheet for an automobile, the laminated glass sheet comprising two glass sheets bonded through a bonding layer, and wherein a receiver-side feeding electrode is disposed at a position to confront the antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass; each of the antenna-conductor-side feeding electrode and the receiver-side feeding electrode has an area of from 140 to 2,500 mm2.
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Citations
34 Claims
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1. A high frequency wave glass antenna for an automobile, comprising:
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two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile; an antenna conductor; an antenna-conductor-side feeding electrode connected to the antenna conductor; the antenna conductor and the antenna-conductor-side feeding electrode being disposed between the two glass sheets; and a receiver-side feeding electrode disposed at a position to confront the antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass; wherein the antenna conductor is configured to receive at least one of a digital television broadcasting frequency band and a UHF television broadcasting frequency band; wherein each of the antenna-conductor-side feeding electrode and the receiver-side feeding electrode has an area of from 49 to 2,500 mm2; and wherein a distance between the antennas-conductor-side feeding electrode and the receiver-side feeding electrode is set so that both electrodes form at least one of electromagnetic coupling and capacitive coupling; and wherein a received signal excited in the antenna conductor is transmitted through the antenna-conductor-side feeding electrode to the receiver-side feeding electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 21)
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14. A high frequency wave glass antenna for an automobile, comprising:
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two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile; an antenna conductor; an antenna-conductor-side feeding electrode connected to the antenna conductor; the antenna conductor and the antenna-conductor-side feeding electrode being disposed between the two glass sheets; and a receiver-side feeding electrode disposed at a position to confront the antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass; wherein the antenna conductor is configured to receive at least one of a digital television broadcasting frequency band and a UHF television broadcasting frequency band; wherein each of the antenna-conductor-side feeding electrode and the receiver-side feeding electrode has an area of from 49 to 2,500 mm2; wherein a shortest distance between the receiver-side feeding electrode and an edge of an opening formed in a car body is from 1.8 to 50.0 mm; wherein a distance between the antenna-conductor-side feeding electrode and the receiver-side feeding electrode is set so that both electrodes form at least one of electromagnetic coupling and capacitive coupling; and wherein a received signal excited in the antenna conductor is transmitted through the antenna-conductor-side feeding electrode to the receiver-side feeding electrode. - View Dependent Claims (15, 16, 17)
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18. A high frequency wave glass antenna for an automobile, comprising:
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two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile; an antenna conductor; an antenna-conductor-side feeding electrode connected to the antenna conductor; the antenna conductor and the antenna-conductor-side feeding electrode being disposed between the two glass sheets; and a receiver-side feeding electrode disposed at a position to confront the antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass; wherein each of the antenna-conductor-side feeding electrode and the receiver-side feeding electrode has an area of from 49 to 2,500 mm2; wherein a distance between the antenna-conductor-side feeding electrode and the receiver-side feeding electrode is from 1.50 to 6.00 mm; and wherein the distance between the antenna-conductor-side feeding electrode and the receiver-side feeding electrode is related to a transmission efficiency of a received signal to be transmitted from the antenna-conductor-side feeding electrode to the receiver-side feeding electrode, such that the distance is determined so as to prevent the transmission efficiency from being brought close to a minimum value when the transmission efficiency changes, having the minimum value and a maximum value according to the distance. - View Dependent Claims (19, 20)
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22. A high frequency wave glass antenna for an automobile, comprising:
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two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile; a first antenna conductor; a first antenna-conductor-side feeding electrode connected to the first antenna conductor; the first antenna conductor and the first antenna-conductor-side feeding electrode being disposed between the two glass sheets; a second antenna conductor; a second antenna-conductor-side feeding electrode connected to the second antenna conductor; the second antenna conductor and the second antenna-conductor-side feeding electrode being disposed between the two glass sheets; a first receiver-side feeding electrode disposed at a position to confront the first antenna-conductor-side feeding electrode and on a car-interior-side surface of the laminated glass; and a second receiver-side feeding electrode disposed at a position to confront the second antenna-conductor-side feeding electrode and on the car-interior-side surface of the laminated glass; wherein a distance between the first antenna-conductor-side feeding electrode and the second antenna-conductor-side feeding electrode is from 6 to 100 mm. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A high frequency wave glass antenna for an automobile, comprising:
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two glass sheets, the glass sheets being bonded through a bonding layer to form a laminated glass sheet for an automobile; a first antenna conductor; a first antenna-conductor-side feeding electrode connected to the first antenna conductor; the first antenna conductor and the first antenna-conductor-side feeding electrode being disposed on a car-interior-side surface of the laminated glass sheet; a second antenna conductor; a second antenna-conductor-side feeding electrode connected to the second antenna conductor; the second antenna conductor and the second antenna-conductor-side feeding electrode being disposed between the two glass sheets; a receiver-side feeding electrode disposed at a position to confront the second antenna-conductor-side feeding electrode and on the car-interior-side surface of the laminated glass; wherein a distance between the first antenna-conductor-side feeding electrode and the receiver-side feeding electrode is from 2.5 to 100 mm. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification