FULL-SPACE SCANNING END-SWITCHED CRLH LEAKY-WAVE ANTENNA

• US 20140300520A1
• Filed: 04/05/2012
• Published: 10/09/2014
• Est. Priority Date: 04/07/2011
• Status: Abandoned Application

• Current Assignee: Polyvalor LP
• Original Assignee: Polyvalor LP
• Inventors: Nguyen, Van-Hoang, Abielmona, Samer, Caloz, Christophe
• Application Number:
  US14/110,201
• Publication Number:
  US 20140300520A1
• Time in Patent Office: Days
• US Class Current: 343/739
• CPC Class Codes: H01Q 13/206 Microstrip transmission line antennas
• CPC Class Codes: H01Q 13/28 comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
• CPC Class Codes: H01Q 15/0066 said selective devices being reconfigurable, tunable or controllable, e.g. using switches
• CPC Class Codes: H01Q 15/0086 said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
• CPC Class Codes: H01Q 3/00 Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system means for positioning H01Q1/125

Abstract

The present relates to a leaky-wave antenna unit. The leaky wave antenna unit comprises a leaky wave antenna having two ports and a switching unit. The switching unit comprises an input, two throws and an actuator. The input of the switching unit receives a signal to be radiated by the leaky wave antenna. Each of the throw is connected to a different port of the leaky wave antenna, while the actuator switches the input between the two throws.

Claims

1. A leaky-wave antenna unit comprising:

a leaky wave antenna having two ports; and

a switching unit, the switching unit comprising an input, two throws and an actuator, the input receiving a signal to be radiated by the leaky wave antenna, each of the throw being connected to a different port of the leaky wave antenna, and the actuator switching the input between the two throws.

2. The leaky-wave antenna unit of claim 1, wherein the switching unit further comprises at least one internal load.

3. The leaky-wave antenna unit of claim 1, wherein each port of the leaky-wave antenna provides half-space scanning of the leaky wave antenna.

4. The leaky-wave antenna unit of claim 3, wherein the switching unit switches the input between the two throws, thereby achieving full-space scanning by the leaky wave antenna.

5. The leaky-wave antenna unit of claim 1 wherein the leaky-wave antenna is a composite right/left-handed leaky-wave antenna.

6. The leaky-wave antenna unit of claim 1, further comprising a power combining module, the power combining module being disposed between the leaky wave antenna and the switching unit so as to recycle non-radiated signal at an output port of the leaky-wave antenna with the signal to be radiated.

7. The leaky wave antenna unit of claim 6, wherein the power combining module is a rat race coupler.

8. The leaky wave antenna unit of claim 1, wherein the switching unit is an internally-matched single pole double throw switch.

9. Use of the leaky wave antenna unit of claim 1, in at least one of the following:

a wireless base station, a wireless network node, a wireless device, a wireless transmitter, a wireless system and/or a wireless network.