Antenna unit, antenna unit-equipped window glass, attachment method for antenna unit

Patent metadata

Field	Value
Publication number	US-11973259-B2
Application number	US-202117443198-A
Country	US
Kind code	B2
Filing date	Jul 22, 2021
Priority date	Feb 6, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

An antenna unit to be used by being installed so as to face window glass of a building, the antenna unit including a radiating element, a reflective member configured to reflect electromagnetic waves radiated from the radiating element toward outside of the building, and a support unit configured to removably support the reflective member. An antenna unit attachment method includes installing an antenna unit so as to face window glass for a building, the antenna unit having a radiating element and a support unit, and supporting a reflective member that reflects electromagnetic waves radiated from the radiating element by the support unit on an outdoor side relative to the radiating element.

First claim

What is claimed is:

1. An antenna unit configured to face window glass of a building, comprising:
a radiating element configured to radiate electromagnetic waves;
a reflective member configured to reflect the electromagnetic waves radiated from the radiating element; and
a support unit configured to removably support the reflective member and be positioned such that the reflective element is positioned to reflect and reduce part of the electromagnetic waves radiated toward outside the building,
wherein the support unit is configured to form a space between the radiating element and the window glass when the antenna unit is attached to the window glass.

2. The antenna unit according to claim 1 , wherein the support unit includes an antenna unit upper portion from which the reflective member hangs.

3. The antenna unit according to claim 2 , wherein the antenna unit upper portion includes a connector connected to the radiating element, and the reflective member hangs from the antenna unit upper portion except where the connector is placed.

4. The antenna unit according to claim 1 , wherein the support unit includes a core rod around which the reflective member is drawably wound, and includes an antenna unit upper portion configured to support the core rod.

5. The antenna unit according to claim 4 , wherein the antenna unit upper portion includes a connector that is connected to the radiating element, and the reflective member wound around the core rod hangs by the connector.

6. The antenna unit according to claim 1 , wherein the support unit includes a support rod configured to support the reflective member such that the support unit removably supports the support rod.

7. The antenna unit according to claim 6 , wherein the support unit includes a first fixing unit and a second fixing unit configured to keep the radiating element fixed in place at a location apart from the window glass, and the support rod is a tension rod removably installed between the first fixing unit and the second fixing unit.

8. The antenna unit according to claim 1 , wherein the support unit includes a stand on which the reflective member is removably placed.

9. The antenna unit according to claim 8 , wherein the stand is a rotation stand.

10. The antenna unit according to claim 1 , wherein the support unit is configured to detachably affix the reflective member to the window glass, the antenna unit, or a combination thereof.

11. The antenna unit according to claim 1 , wherein the support unit is configured to removably hold the reflective member.

12. The antenna unit according to claim 11 , wherein the support unit includes a first fixing unit and a second fixing unit configured to keep the radiating element fixed in place at a location apart from the window glass, and the reflective member is removably held between the first fixing unit and the second fixing unit.

13. The antenna unit according to claim 1 , wherein the support unit includes a fixing unit configured to keep the radiating element fixed in place at a location apart from the window glass, and the reflective member is removably supported by the fixing unit.

14. The antenna unit according to claim 1 , further comprising:
a drive mechanism configured to move the reflective member based on a command from a remote control device.

15. The antenna unit according to claim 1 , further comprising:
an absorber positioned between the radiating element and the reflective member such that the absorber absorbs the electromagnetic waves.

16. The antenna unit according to claim 1 , further comprising:
a conductor positioned on an indoor side relative to the radiating element.

17. The antenna unit according to claim 1 , further comprising:
an absorber positioned between the radiating element and the reflective member such that the absorber absorbs the electromagnetic waves; and
a conductor positioned on an indoor side relative to the radiating element.

18. The antenna unit according to claim 1 , wherein the reflective member has a surface resistivity of 20 ohms per square or less.

19. The antenna unit according to claim 1 , wherein the reflective member has a linear shape.

20. The antenna unit according to claim 1 , wherein the support unit is configured to removably support the reflective member between the radiating element and the window glass.

21. An antenna unit-equipped window glass equipped with the antenna unit of claim 1 .

22. An antenna unit attachment method, comprising:
installing an antenna unit comprising a radiating element and a support unit such that the antenna unit faces window glass of a building; and
supporting a reflective member such that the reflective member is positioned to reflect and reduce part of electromagnetic waves radiated toward outside the building,
wherein the radiating element is configured to radiate the electromagnetic waves, the reflective member is configured to reflect the electromagnetic waves radiated from the radiating element, the support unit is configured to removably support the reflective member and positioned such that the reflective element is positioned to reflect and reduce the part of the electromagnetic waves radiated toward outside the building, and the support unit is configured to form a space between the radiating element and the window glass when the antenna unit is attached to the window glass.

23. An antenna unit-equipped window glass equipped with the antenna unit of claim 2 .

Assignees

• Agc Inc
• Agc Glass Europe
• Agc Flat Glass Na Inc
• Agc Vidros Do Brasil Ltda

Inventors

• Hiramatsu Tetsuya
• Ogawa Mayu
• Sonoda Ryuta
• Oka Kentaro
• Ebihara Ken
• Shimada Yuya

Classifications

• H01Q1/1271 Primary

  for mounting on windscreens · CPC title

• H01Q15/14 Primary

  Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} · CPC title

• E06B7/28

  Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners {(edge protecting devices for door leaves E06B3/88; special glazing; emergency glazing; double glazing E06B3/66)} · CPC title

• H01Q17/001

  for modifying the directional characteristic of an aerial · CPC title

• H01Q1/526

  Electromagnetic shields · CPC title