IP Library › Granted Patent US 7,262,741
Granted Patent B2
US 7,262,741 · App. 11/291,406 · Granted Aug 28, 2007

Ultra wideband antenna

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Quick Facts
Patent No.
US 7,262,741
App. No.
11/291,406
Granted
Aug 28, 2007
Kind
B2
Abstract

An ultra wideband antenna includes at least one radiator for transmitting and/or receiving an electromagnetic wave, the radiator having a planar elliptical shape for the whole UWB frequency band and one having at least one elliptical gap for omitting the transmission and reception of an electromagnetic wave at a predefined wavelength λ, whereby the length of the gap depends on the predefined wavelength λ.

Claims (22)

1. An ultra wideband antenna, comprising:

at least one radiator for transmitting and/or receiving an electromagnetic wave, said radiator having a planar elliptical shape,

wherein the antenna covers a whole UWB frequency band, and the radiator includes at least two elliptical gaps located concentrically and having a same center.

2. The antenna according to claim 1 , wherein the antenna includes a single radiator.

3. The antenna according to claim 1 , wherein the antenna includes two radiators located orthogonal to each other.

4. The antenna according to claim 1 , wherein the antenna is a ground plane antenna.

5. The antenna according to claim 1 , wherein the antenna is a dipole antenna.

6. A mobile or fixed terminal comprising an ultra wideband antenna according to claim 1 .

7. An ultra wideband antenna, comprising: at least one radiator for transmitting and/or receiving an electromagnetic wave, said radiator having a planar elliptical shape and having at least two elliptical gaps for suppressing the transmission and reception of an electromagnetic wave at a predefined wavelength λ,

wherein the length of each gap depends on said predefined wavelength λ, and the at least two elliptical gaps are located concentrically and have a same center.

8. The antenna according to claim 7 , wherein the length of each gap is in the range of a quarter of said predefined wavelength λ.

9. The antenna according to claim 7 , wherein a center of the radiator is not coincident with the center of the elliptical gaps such that the radiator is located eccentrically from the gaps.

10. The antenna according to claim 7 , wherein the antenna includes a feeding circuit for transferring signal energy to and/or from the radiator.

11. The antenna according to claim 10 , wherein the center of each elliptical gap is located on a straight line(s) extending from the center of the radiator to the feeding circuit.

12. An ultra wideband antenna, comprising:

at least one radiator configured to transmit or receive an electromagnetic wave, said radiator having a planar elliptical shape,

wherein the antenna covers a whole UWB frequency band, and the radiator includes at least two elliptical gaps located concentrically and having a same center.

13. The antenna according to claim 12 , wherein the antenna includes a single radiator.

14. The antenna according to claim 12 , wherein the antenna includes two radiators located orthogonal to each other.

15. The antenna according to claim 12 , wherein the antenna is a ground plane antenna.

16. The antenna according to claim 12 , wherein the antenna is a dipole antenna.

17. A mobile or fixed terminal comprising an ultra wideband antenna according to claim 12 .