# US 10,483,647 B2 · Antenna device

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- Number: US 10,483,647 B2
- Document ID: US10483647B2
- Status: Granted
- Kind: B2
- Application number: 15/992,211
- Filed: 2018-05-30
- Published: 2019-01-03
- Granted: 2019-11-19
- Earliest claimed: 2017-06-30
- Assignees: Gemtek Technology Co., Ltd.
- Applicants: Gemtek Technology Co., Ltd.
- Inventors: Hsiao-Ching Chien
- Web page: https://patentgrep.com/patent/US10483647B2

## CPC

- H01Q 13/10: Resonant slot antennas
- H01Q 1/521: {reducing the coupling between adjacent antennas}
- H01Q 5/28: Arrangements for establishing polarisation or beam width over two or more different wavebands
- H01Q 15/14: Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)}
- H01Q 19/18: having two or more spaced reflecting surfaces (H01Q19/20 takes precedence)
- H01Q 21/28: Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)}
- H01Q 25/005: {providing two patterns of opposite direction; back to back antennas (H01Q25/004 takes precedence)}
- H01Q 1/007: {specially adapted for indoor communication}
- H01Q 1/2291: {used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W)}
- H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)}
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

An antenna device is disclosed. The antenna device includes a first radiator, a second radiator, and a first reflection board. The first radiator is configured to radiate a first radio wave comprising a first wavelength value. The second radiator is configured to radiate a second radio wave comprising a second wavelength value. The first reflection board is located between the first radiator and the second radiator. A first ratio between the first wavelength value and a length value of the first reflection board is less than 0.5, and a second ratio between the second wavelength value and the length value of the first reflection board is greater than 0.5.

## Claims

### Claim 1

An antenna device, comprising:
a first radiator, configured to radiate a first radio wave comprising a first wavelength value;
a second radiator, configured to radiate a second radio wave comprising a second wavelength value; and
a first reflection board, located between the first radiator and the second radiator;
wherein a first ratio between the first wavelength value and a length value of the first reflection board is less than 0.5, and a second ratio between the second wavelength value and the length value of the first reflection board is greater than 0.5;
wherein a main beam corresponding to the first wavelength value and a main beam corresponding to the second wavelength value points in the same direction.

### Claim 2 (depends on 1)

The antenna device of claim 1, wherein a plane of the first radiator, a plane of the first reflection board, and a plane of the second radiator are partially overlapped in a first direction, and the plane of the first radiator, the plane of the first reflection board, and the plane of the second radiator are perpendicular to the first direction respectively.

### Claim 3 (depends on 1)

The antenna device of claim 1, wherein a ratio between the first wavelength value and the second wavelength value is equal to a ratio between the second ratio and the first ratio.

### Claim 4 (depends on 3)

The antenna device of claim 3, wherein the ratio between the first wavelength value and the second wavelength value is 2.

### Claim 5 (depends on 1)

The antenna device of claim 1, wherein the first radio wave comprises a first wavelength value range, the second radio wave comprises a second wavelength value range, and the first wavelength value range comprises a smallest wavelength value, the second wavelength value range comprises a largest wavelength value;
wherein a ratio between the smallest wavelength value and the largest wavelength value is equal to a ratio between the second ratio and the first ratio.

### Claim 6 (depends on 1)

The antenna device of claim 1, wherein the first reflection board comprises at least one slot.

### Claim 7 (depends on 1)

The antenna device of claim 1, wherein the first radiator and the second radiator both comprise a dual polarized antenna.

### Claim 8 (depends on 1)

The antenna device of claim 1, further comprising:
a third radiator, configured to radiate a third radio wave comprising the second wavelength value;
a second reflection board, located between the third radiator and the first radiator;
wherein a first ratio between the first wavelength value and a length value of the second reflection board is less than 0.5, and a second ratio between the second wavelength value and a length value of the second reflection board is greater than 0.5.

### Claim 9 (depends on 8)

The antenna device of claim 8, wherein a plane of the third radiator, a plane of the second reflection board, and a plane of the first radiator are partially overlapped in a first direction, and the plane of the third radiator, the plane of the second reflection board and the plane of the first radiator are perpendicular to the first direction respectively.

### Claim 10 (depends on 9)

The antenna device of claim 9, wherein the plane of the third radiator and the plane of the second radiator are not overlapped in the first direction, and a plane of the first reflection board and the plane of the second reflection board are not overlapped in the first direction.