Antenna device and antenna system

Patent metadata

Field	Value
Publication number	US-10833420-B2
Application number	US-202016874054-A
Country	US
Kind code	B2
Filing date	May 14, 2020
Priority date	Jan 5, 2018
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

An antenna device includes an antenna unit and reflecting units. The antenna unit is arranged on a substrate. The reflecting units are arranged separately from each other on the substrate and surrounding the antenna unit. The reflecting units are configured to adjust a radiation pattern of the antenna unit, and each of the reflecting units includes a first portion and a second portion. The first portion has an upper side and a lower side, and the lower side of the first portion is coupled to the substrate. The second portion has a lower side connected to the upper side of the first portion. A width of the lower side of the first portion is smaller than a width of the lower side of the second portion.

First claim

What is claimed is:

1. An antenna device, comprising:
an antenna unit arranged on a substrate; and
a plurality of reflecting units arranged separately from each other on the substrate, surrounding the antenna unit, wherein the reflecting units are configured to adjust a radiation pattern of the antenna unit, and each of the reflecting units comprising:
a first portion having an upper side and a lower side; and
a second portion having a lower side connected to the upper side of the first portion; and
a first switch coupled to the substrate and the lower side of the first portion;
wherein the substrate coupled to the lower side of the first portion through the first switch and a width of the lower side of the first portion is smaller than a width of the lower side of the second portion,
wherein a number of the reflecting units is three, and the antenna unit is arranged on a perpendicular bisector of an edge of an isosceles triangle formed by the reflecting units, and
wherein a distance between a first reflecting unit of the reflecting units disposed on the perpendicular bisector and the antenna unit is greater than a distance between each of the other two reflecting units of the reflecting units and the antenna unit, and a width of the lower side of the second portion of the first reflecting unit is the largest one of widths of the lower sides of the second portions of the reflecting units.

2. The antenna device of claim 1 , wherein the lower side of the second portion connected to the upper side of the first portion through a second switch.

3. The antenna device of claim 2 , wherein the angle is in a range from 30 degrees to 60 degrees.

4. The antenna device of claim 1 , further comprising:
a plurality of switches configured to couple between the first portion and the second portion of each of the reflecting units, wherein the switches are configured to selectively enable or disable an electrical signal path between the first portion and the second portion of each of the reflecting units to adjust the radiation pattern of the antenna unit.

5. The antenna device of claim 1 , wherein a distance between the lower side of the second portion of each of the reflecting units and the substrate is in a range from 0.06 times of a wavelength to 0.2 times of the wavelength.

6. An antenna system, comprising:
a control circuit; and
a plurality of antenna devices coupled to the control circuit, wherein the control circuit is configured to control corresponding radiation patterns of the antenna devices, wherein each of the antenna devices comprises:
a plurality of reflecting units, and each of the reflecting units comprising:
a connecting portion having a first side and a second side opposite to the first side;
a radiation pattern adjusting board having a first side and a second side opposite to the first side, and the first side of the radiation pattern adjusting board connected to the second side of the connecting portion; and
a first switch coupled to a substrate and the first side of the connecting portion, wherein the substrate coupled to the first side of the connecting portion through the first switch and a width of the first side of the connecting portion is smaller than a width of the first side of the radiation pattern adjusting board; and
an antenna unit surrounded by the reflecting units,
wherein a number of the reflecting units is three, and the antenna unit is arranged on a perpendicular bisector of an edge of an isosceles triangle formed by the reflecting units, and
wherein a distance between a first reflecting unit of the reflecting units disposed on the perpendicular bisector and the antenna unit is greater than a distance between each of the other two reflecting units of the reflecting units and the antenna unit, and a width of the first side of the radiation pattern adjusting board of the first reflecting unit is the largest one of widths of the first sides of radiation pattern adjusting boards of the reflecting units.

7. The antenna system of claim 6 , wherein the first side of the radiation pattern adjusting board connected to the second side of the connecting portion through a second switch.

8. The antenna system of claim 6 , wherein a distance between every two adjacent antenna devices is in a range from 1.3 times of a wavelength to 1.8 times of the wavelength.

9. The antenna system of claim 6 , wherein a distance between the first side of the radiation pattern adjusting board of each of the reflecting units and the substrate is in a range from 0.06 times of a wavelength to 0.2 times of the wavelength.

Assignees

• Delta Electronics Inc

Inventors

• Cheng Kuang-Kai

Classifications

• H01Q21/20

  the units being spaced along or adjacent to a curvilinear path {(slotted waveguide arrays H01Q21/005; circularly or helically slotted waveguides H01Q21/0062)} · CPC title

• H01Q15/148

  with means for varying the reflecting properties (H01Q15/147 takes precedence) · CPC title

• H01Q19/18 Primary

  having two or more spaced reflecting surfaces (H01Q19/20 takes precedence) · CPC title

• H01Q19/021

  Means for reducing undesirable effects · CPC title

• H01Q9/40

  Element having extended radiating surface · CPC title