ULTRA-WIDEBAND (UWB) ANTENNA

• US 20140152514A1
• Filed: 12/05/2013
• Published: 06/05/2014
• Est. Priority Date: 12/05/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Dong Wook, KIM, Jong Jin, VILENSKIY, Artem Rudolfovich, KLETSOV, Andrey Vladimorovich, ARKHIPENKOV, Vladimir Yakovlevich
• Granted Patent: US 10,135,125 B2
• Time in Patent Office: Days
• US Class Current: 343/718
• CPC Class Codes: H01Q 1/273 Adaptation for carrying or wearing by persons or animals
• CPC Class Codes: H01Q 5/20 characterised by the operating wavebands
• CPC Class Codes: H01Q 5/25 Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
• CPC Class Codes: H01Q 5/364 Creating multiple current paths
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence

Abstract

A small-sized ultra-wideband (UWB) antenna includes a radiating unit configured to have a contour of a first shape, a ground unit configured to have a contour of a shape substantially equal to the first shape, and disposed parallel to the radiating unit, at least one shorting pin connected orthogonal to the ground unit and the radiating unit to connect a first area of the ground unit and a first area of the radiating unit, and a feeding unit connected orthogonal to the ground unit and the radiating unit to connect a second area of the ground unit and a second area of the radiating unit.

Claims

1. An antenna, comprising:

a ground conductive unit disposed near a surface of a human body,

a radiating unit disposed at a distance from the ground conductive unit,

a conductive shorting unit configured to connect the ground conductive unit and the radiating unit at predetermined points, and disposed orthogonal to the surface of the human body, and

a conducting feeding unit configured to be connected to the ground conductive unit and the radiating unit at arbitrary points, and disposed substantially orthogonal to the surface of the human body,

wherein

the ground conductive unit and the radiating unit are oriented parallel to the surface of the human body, and

at least one of the ground conductive unit and the radiating unit comprise arbitrarily-shaped slits.

2. The antenna of claim 1, wherein the radiating unit comprises external dimensions substantially similar to external dimensions of the ground conductive unit.

3. The antenna of claim 1, wherein the distance of the radiating unit from the ground conductive unit is 0.2 to 0.5 of a medium wavelength in a bandwidth and in a direction approximately orthogonal to the surface of the human body.

4. The antenna of claim 1, wherein the conductive shorting unit is mounted on at least two samples.

5. The antenna of claim 3, wherein the conductive feeding unit is configured to have a gap in an arbitrary area with dimensions greater than 0.125 of a lower wavelength in the bandwidth.

6. The antenna of claim 1, wherein the conducting feeding unit and the conductive shorting unit are disposed to generate in-phase vertical currents in an operating frequency bandwidth.

7. The antenna of claim 1, wherein external dimensions of the antenna are determined based on a required operating frequency bandwidth calculated by Equation 1,

lam/4=2*h+Lm, 

 

[Equation 1]

wherein;

lam is a lower operating wavelength in a bandwidth,

h is a distance between the ground conductive unit and the radiating unit, and

Lm is an average perimeter of a current contour on a surface of the slotted radiating unit,

wherein a value of the average perimeter depends on a selected disposition of the arbitrarily-shaped slits.

8. A device, comprising:

an antenna ground conductive unit disposed in close proximity to the human body, and configured to have a surface of a geometrical shape substantially equal to a geometrical shape of an inner surface of the dielectric case of the device;

an antenna radiating unit disposed at a distance from the antenna ground conductive unit;

a conductive shorting unit configured to connect the antenna ground conductive unit and the antenna radiating unit at predetermined points, and disposed substantially orthogonal to the surface of the human body; and

an antenna conducting feeding unit configured to be connected to the antenna ground conductive unit and the antenna radiating unit at arbitrary points, and disposed approximately orthogonal to the surface of the human body,

wherein

at least one of the antenna ground conductive unit and the antenna radiating unit comprise arbitrarily-shaped slits, and

the antenna ground conductive unit and the antenna radiating unit are mounted on an internal surface of the device, and oriented maximally parallel to the surface of the human body.

9. The device of claim 8, wherein the antenna radiating unit comprises external dimensions substantially similar to external dimensions of the ground conductive unit.

10. The device of claim 8, wherein the distance of the antenna radiating unit from the antenna ground conductive unit is 0.2 to 0.5 of a medium wavelength in a bandwidth and in a direction approximately orthogonal to the surface of the human body.

11. The device of claim 10, wherein the antenna conductive feeding unit is configured to have a gap in an arbitrary area with dimensions greater than 0.125 of a lower wavelength in the bandwidth.

12. The device of claim 8, wherein the antenna conducting feeding unit and the conductive shorting unit are disposed to achieve an in-phase vertical currents distribution in an operating frequency bandwidth.

13. The device of claim 8, wherein dimensions of an external antenna are determined based on a required operating frequency bandwidth calculated by Equation 1,

lam/4=2*h+Lm, 

 

[Equation 1]

wherein;

lam is a lower operating wavelength in a bandwidth,

h is a distance between the antenna ground conductive unit and the antenna radiating unit, and

Lm is an average perimeter of a current contour on a surface of the slotted antenna radiating unit,

wherein a value of the average perimeter depends on a selected disposition of the arbitrarily-shaped slits.

14. The device of claim 8, wherein the device is operated to be used in communication systems based on Institute of Electrical and Electronics Engineers (IEEE) 802.15.06 standards.

15. The device of claim 8, wherein the device is operated to organize radio communication between on-body terminals.

16. The device of claim 8, wherein the device is operated to organize radio communication between an on-body terminal and a remote external device.

17. An ultra-wideband (UWB) antenna comprising:

a radiating unit comprising a contour of a first shape;

a ground unit comprising a contour of a shape substantially equal to the first shape, and disposed parallel to the radiating unit;

a shorting pin connected orthogonal to the ground unit and the radiating unit to connect a first area of the ground unit and a first area of the radiating unit; and

a feeding unit connected orthogonal to the ground unit and the radiating unit to connect a second area of the ground unit and a second area of the radiating unit.

18. The antenna of claim 17, wherein the first shape forms a D-shape and comprises a first boundary comprising a straight line, and a second boundary comprising a curve connected to both ends of the first boundary.

19. The antenna of claim 17, wherein the radiating unit comprises at least one slit.

20. The antenna of claim 19, wherein:

the first shape forms a D-shape and comprises a first boundary comprising a straight line, and a second boundary comprising a curve connected to both ends of the first boundary, and

the at least one slit comprises three slits, a first slit formed to be cut from the second boundary in a single direction, and a second slit and a third slit formed to be cut from the second boundary in a first direction and refracted and cut in a second direction.

21. The antenna of claim 17, wherein, when an electronic device comprising the antenna is in contact with a human body, the radiating unit and the ground unit are disposed parallel to a human body.

22. The antenna of claim 17, wherein the first area of the radiating unit corresponds to the first area of the ground unit.

23. The antenna of claim 17, wherein the shorting pin comprises two shorting pins.

24. The antenna of claim 17, wherein the shorting pin comprises a length of 0.2 to 0.5 of a medium wavelength in a bandwidth and the ground unit is disposed at a distance 0.2 to 0.5 of a lower wavelength in the bandwidth from the radiating unit.

25. An antenna, comprising:

a ground plate comprising a first boundary comprising a straight line extended in a direction of a single side, and a curved second boundary connected to both ends of the single side of the first boundary;

a radiating plate configured to be disposed substantially parallel to the ground plate, at a distance from the ground plate in a direction orthogonal to a surface of a human body;

a shorting pin configured to extend in a direction substantially orthogonal to the ground plate and the radiating plate and to connect the ground plate and the radiating plate; and

a feeding pin configured to be connected at arbitrary points of the ground plate and the radiating plate,

wherein at least one of the ground plate and the radiating plate comprise an arbitrarily-shaped slit.