Systems and Methods of Efficient Band Amplification

• US 20080212500A1
• Filed: 03/02/2007
• Published: 09/04/2008
• Est. Priority Date: 03/02/2007
• Status: Active Grant

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Xu, Xiangqing, Zhen, Liping
• Granted Patent: US 7,903,592 B2
• Time in Patent Office: Days
• US Class Current: 370/277
• CPC Class Codes: H03F 3/602 Combinations of several amplifiers
• CPC Class Codes: H04B 1/52 Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Abstract

Systems and methods for multi-band amplification. In an exemplary embodiment of the present invention, the multi-band amplification device has an uplink amplifier with a first port and a second port and a downlink amplifier with a first port and a second port. Furthermore, the multi-band amplification device has a first duplexer device in communication with the first port of the downlink amplifier and the second port of the uplink amplifier and a second duplexer device in communication with the first port of the uplink amplifier and the second port of the downlink amplifier. The first duplexer device is enabled to receive and transmit at least a downlink signal and an uplink signal of a first frequency band, a downlink signal and an uplink signal of a second frequency band, and a downlink signal and an uplink signal of a third frequency band. The second duplexer device is enabled to receive and transmit at least the downlink signal and the uplink signal of the first frequency band, the downlink signal and the uplink signal of the second frequency band, and the downlink signal and the uplink signal of the third frequency band.

Claims

1. A multi-band amplification device comprising:

an uplink amplifier, having a first port and a second port;

a downlink amplifier, having a first port and a second port;

a first duplexer device in communication with the first port of the downlink amplifier and the second port of the uplink amplifier;

a second duplexer device in communication with the first port of the uplink amplifier and the second port of the downlink amplifier;

wherein the first duplexer device is enabled to receive and transmit at least a downlink signal and an uplink signal of a first frequency band and a downlink signal and an uplink signal of a second frequency band; and

wherein the second duplexer device is enabled to receive and transmit at least the downlink signal and the uplink signal of the first frequency band and the downlink signal and the uplink signal of the second frequency band.

2. The multi-band amplification device of claim 1, wherein the first duplexer device is further enabled to receive and transmit a downlink signal and an uplink signal of a third frequency band and the second duplexer device is further enabled to receive and transmit the downlink signal and the uplink signal of the third frequency band.

3. The multi-band amplification device of claim 2, wherein the first frequency band is in the 800 MHz range, the second frequency band is in the 900 MHz range, and the third frequency band is in the 1900 MHz range.

4. The multi-band amplification device of claim 1, wherein the first frequency band is in the 800 MHz range and the second frequency band is in the 900 MHz range.

5. The multi-band amplification device of claim 1, wherein the first duplexer device and the second duplexer device include at least one common resonator for coupling the downlink signal and the uplink signal of the first frequency band and the downlink signal and the uplink signal of the second frequency band.

6. The multi-band amplification device of claim 2, wherein the first duplexer device and the second duplexer device include at least one common resonator for coupling the downlink signal and the uplink signal of the first frequency band, the downlink signal and the uplink signal of the second frequency band, and the downlink signal and the uplink signal of the third frequency band.

7. The multi-band amplification device of claim 6, wherein each port of the first duplexer device and each port of the second duplexer device is provided in communication with at least one common resonator.

8. The multi-band amplification device of claim 1, wherein the first duplexer device and the second duplexer device include at least one common resonator and at least one matching RF wire for coupling the downlink signal and the uplink signal of the first frequency band and the downlink signal and the uplink signal of the second frequency band.

9. The multi-band amplification device of claim 2, wherein the first duplexer device and the second duplexer device include at least one common resonator and at least one matching RF wire for coupling the downlink signal and the uplink signal of the first frequency band, the downlink signal and the uplink signal of the second frequency band, and the downlink signal and the uplink signal of the third frequency band.

10. A wireless telecommunication system comprising:

a triple band bidirectional amplification device capable of transmitting and receiving a plurality of signals in at least three frequency bands;

the plurality of signals being simultaneously transmitted and received in a downlink direction and a uplink direction;

wherein the triple band bidirectional amplification device includes a bidirectional amplifier chain having an uplink amplifier and a downlink amplifier; and

wherein the bidirectional amplifier chain is enabled to amplify the plurality of signals in at least three frequency bands.

11. The wireless telecommunication system of claim 10, further comprising a first duplexer device in communication with the uplink amplifier and the downlink amplifier and a second duplexer device in communication with the uplink amplifier and the downlink amplifier.

12. The wireless telecommunication system of claim 11, wherein the first duplexer device and the second duplexer device are enabled to transmit and receive the plurality of signals in at least three frequency bands.

13. The wireless telecommunication system of claim 10, wherein the at least three frequency bands include a first frequency band in the 800 MHz range, a second frequency band in the 900 MHz range, and a third frequency band in the 1900 MHz range.

14. A duplexer device for a multi-band amplification system comprising:

a first port in communication with at least one antenna, the first port for receiving and transmitting a downlink signal and an uplink signal of a first frequency band and a downlink signal and an uplink signal of a second frequency band;

a second port in communication with a downlink amplifier, the second port for receiving or transmitting the downlink signal of the first frequency band and the downlink signal of the second frequency band to or from the downlink amplifier; and

a third port in communication with an uplink amplifier, the third port for receiving or transmitting an uplink signal of the first frequency band and an uplink signal of the second frequency band to or from the uplink amplifier.

15. The duplexer device for a multi-band amplification system of claim 14, wherein the first port further receives and transmits a downlink signal and an uplink signal of a third frequency band, the second port further receives or transmits a downlink signal of the third frequency band to or from the downlink amplifier, and the third port further receives or transmits an uplink signal of the third frequency band to or from the uplink amplifier.

16. The duplexer device for a multi-band amplification system of claim 14, further comprising:

a first common resonator in communication with the first port to couple the downlink signal and the uplink signal of the first frequency band and the downlink signal and the uplink signal of the second frequency band;

a second common resonator in communication with the second port to couple the downlink signal of the first frequency band and the downlink signal of the second frequency band; and

a third common resonator in communication with the third port to couple the uplink signal of the first frequency band and the uplink signal of the second frequency band.