Transceiver with selective beamforming antenna array

• US 8,260,360 B2
• Filed: 06/22/2007
• Issued: 09/04/2012
• Est. Priority Date: 06/22/2007
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza Reza, Rofougaran, Maryam
• Primary Examiner(s): Chen, Junpeng
• Application Number:
  US11/821,382
• Publication Number:
  US 20080318632A1
• Time in Patent Office: 1,901 Days
• Field of Search: 455/102, 455/103, 455/104, 455/39, 455/500, 455/526, 455/78, 455/79, 455/80, 455/82, 455/83, 455/550.1, 455/552.1, 455/553.1, 455/562.1, 455/575.1, 455/101, 455/434, 455/561, 375/267, 370/252, 370/329, 370/336, 370/338, 370/348
• US Class Current: 455/562.1
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04B 7/088 using beam selection

Abstract

A multiple mode RF transmitter a baseband section, a transmitter section, and a configurable antenna circuit. The transmitter section is couple to convert a first outbound symbol stream into first outbound RF beamforming signals in accordance with a first beamforming setting and convert a second outbound symbol stream into second outbound RF beamforming signals in accordance with a second beamforming setting. The configurable antenna circuit is coupled to provide a first antenna assembly for transmitting the first outbound RF beamforming signals and provide a second antenna assembly for transmitting the second outbound RF beamforming signals.

Claims

1. A multiple mode radio frequency (RF) transmitter comprises:

a baseband section coupled to;

convert first outbound data into a first outbound symbol stream in accordance with a first communication protocol when the first communication protocol is enabled; and

convert second outbound data into a second outbound symbol stream in accordance with a second communication protocol when the second communication protocol is enabled;

a transmitter section coupled to;

convert the first outbound symbol stream into first outbound RF beamforming signals in accordance with a first beamforming setting selected based on at least the first communication protocol; and

convert the second outbound symbol stream into second outbound RF beamforming signals in accordance with a second beamforming setting selected based on at least the second communication protocol; and

a configurable antenna circuit coupled to;

provide a first antenna assembly for transmitting the first outbound RF beamforming signals; and

provide a second antenna assembly for transmitting the second outbound RF beamforming signals.

2. The multiple mode RF transmitter of claim 1, wherein the transmitter section comprises:

a first RF section coupled to convert the first outbound symbol stream into a first outbound RF signal;

a second RF section coupled to convert the second outbound symbol stream into a second outbound RF signal;

a hybrid section coupled to convert at least one of;

the first outbound RF signal into a plurality of orthogonal first outbound RF signals; and

the second outbound RF signal into a plurality of orthogonal second outbound RF signals;

a beamforming section coupled to adjust at least one of;

phase of at least one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting to produce the first outbound RF beamforming signals; and

phase of at least one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting to produce the second outbound RF beamforming signals.

3. The multiple mode RF transmitter of claim 2, wherein the beamforming section comprises at least one of:

a first adjustable phase altering module coupled to alter at least one of;

the phase of a first one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting; and

the phase of a first one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting;

a second adjust phase alter module coupled to alter at least one of;

the phase of a second one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting; and

the phase of a second one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting.

4. The multiple mode RF transmitter of claim 2, wherein the beamforming section further comprises:

a first directional coupler coupled to sense at least one of;

one of the first outbound RF beamforming signals to produce a sensed first outbound RF beamforming signal; and

one of the second outbound RF beamforming signals to produce a sensed second outbound RF beamforming signal;

a second directional coupler coupled to sense at least one of;

another one of the first outbound RF beamforming signals to produce another sensed first outbound RF beamforming signal; and

another one of the second outbound RF beamforming signals to produce another sensed second outbound RF beamforming signal; and

a calibration module coupled to adjust at least one of;

the first beamforming setting based on at least one of the sensed first outbound RF beamforming signal and the another sensed first outbound RF beamforming signal; and

the second beamforming setting based on at least one of the sensed second outbound RF beamforming signal and the another sensed second outbound RF beamforming signal.

5. The multiple mode RF transmitter of claim 2, wherein each of the first and second RF sections comprises:

a polar coordinate up conversion module coupled to convert the outbound symbol stream into an up converted signal;

or

a frequency coordinate up conversion module coupled to convert the outbound symbol stream into the up converted signal;

or

a Cartesian coordinate up conversion module coupled to convert the outbound symbol stream into the up converted signal; and

a power amplifier module coupled to amplify the up converted signal to produce a first or second outbound RF signal.

6. The multiple mode RF transmitter of claim 5, wherein the power amplifier module comprises:

an amplitude modulation module coupled to amplitude modulate the up converted signal based on amplitude information of the outbound symbol stream.

7. The multiple mode RF transmitter of claim 1, wherein the transmitter section comprises:

an oscillation module coupled to;

when the first communication protocol is enabled, generate, in accordance with the first beamforming setting, a plurality of first phase modulated and beamforming oscillations based on a first phase modulation information of the first outbound symbol stream; and

when the second communication protocol is enabled, generate, in accordance with the second beamforming setting, a plurality of second phase modulated and beamforming oscillations based on a second phase modulation information of the second outbound symbol stream; and

a power amplifier module coupled to;

amplify the plurality of first phase modulated and beamforming oscillations to produce the first outbound RF beamforming signals; and

amplify the plurality of second phase modulated and beamforming oscillations to produce the second outbound RF beamforming signals.

8. The multiple mode RF transmitter of claim 1, wherein the configurable antenna circuit comprises:

a first antenna interface module;

a second antenna interface module;

a first antenna structure coupled to the first adjustable antenna interface module; and

a second antenna structure coupled to the second adjustable antenna interface module, wherein, when the first communication protocol is enabled, the first antenna interface module and the first antenna structure are configured to transmit one of the first outbound RF beamforming signals and the second antenna interface module and the second antenna structure are configured to transmit another one of the first outbound RF beamforming signals and, when the second communication protocol is enabled, the first antenna interface module and the first antenna structure are configured to transmit one of the second outbound RF beamforming signals and the second antenna interface module and the second antenna structure are configured to transmit another one of the second outbound RF beamforming signals.

9. A multiple mode radio frequency (RF) transceiver comprises:

a baseband section coupled to;

convert first outbound data into a first outbound symbol stream in accordance with a first communication protocol when the first communication protocol is enabled;

convert a first inbound symbol stream into first inbound data in accordance with the first communication protocol;

convert second outbound data into a second outbound symbol stream in accordance with a second communication protocol when the second communication protocol is enabled; and

convert a second inbound symbol stream into second inbound data in accordance with the second communication protocol;

a transmitter section coupled to;

convert the first outbound symbol stream into first outbound RF beamforming signals in accordance with a first beamforming setting selected based on at least the first communication protocol; and

convert the second outbound symbol stream into second outbound RF beamforming signals in accordance with a second beamforming setting selected based on at least the second communication protocol;

a receiver section coupled to;

convert first inbound beamformed RF signals into the first inbound symbol stream; and

convert second inbound beamformed RF signals into the second inbound symbol stream; and

a configurable antenna circuit coupled to;

provide a first antenna assembly for transmitting the first outbound RF beamforming signals and for receiving the first inbound beamformed RF signals; and

provide a second antenna assembly for transmitting the second outbound RF beamforming signals and for receiving the second beamformed inbound RF signals.

10. The multiple mode RF transceiver of claim 9, wherein the receiver section comprises:

a hybrid section coupled to convert at least one of;

the first inbound beamformed RF signals into a first inbound RF signal; and

the second inbound beamformed RF signals into a second inbound RF signal;

a first low noise amplifier module coupled to amplify the first inbound RF signal to produce a first amplified inbound RF signal;

a second low noise amplifier module coupled to amplify the second inbound RF signal to produce a second amplified inbound RF signal;

a first down conversion module coupled to convert the first amplified inbound RF signal into the first inbound symbol stream; and

a second down conversion module coupled to convert the second amplified inbound RF signal into the second inbound symbol stream.

11. The multiple mode RF transceiver of claim 9, wherein the configurable antenna circuit comprises:

a first antenna interface module;

a second antenna interface module;

a first antenna structure coupled to the first adjustable antenna interface module; and

a second antenna structure coupled to the second adjustable antenna interface module, wherein, when the first communication protocol is enabled, the first antenna interface module and the first antenna structure are configured to receive the first inbound beamformed RF signals and to transmit one of the first outbound RF beamforming signals and the second antenna interface module and the second antenna structure are configured to transmit another one of the first outbound RF beamforming signals and, when the second communication protocol is enabled, the first antenna interface module and the first antenna structure are configured to receive the second inbound beamformed RF signals and to transmit one of the second outbound RF beamforming signals and the second antenna interface module and the second antenna structure are configured to transmit another one of the second outbound RF beamforming signals.

12. The multiple mode RF transceiver of claim 9, wherein the transmitter section comprises:

a first RF section coupled to convert the first outbound symbol stream into a first outbound RF signal;

a second RF section coupled to convert the second outbound symbol stream into a second outbound RF signal;

a hybrid section coupled to convert at least one of;

the first outbound RF signal into a plurality of orthogonal first outbound RF signals; and

the second outbound RF signal into a plurality of orthogonal second outbound RF signals;

a beamforming section coupled to adjust at least one of;

phase of at least one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting to produce the first outbound RF beamforming signals; and

phase of at least one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting to produce the second outbound RF beamforming signals.

13. The multiple mode RF transceiver of claim 12, wherein the beamforming section comprises at least one of:

a first adjustable phase altering module coupled to alter at least one of;

the phase of a first one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting; and

the phase of a first one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting;

a second adjust phase alter module coupled to alter at least one of;

the phase of a second one of the plurality of orthogonal first outbound RF signals in accordance with the first beamforming setting; and

the phase of a second one of the plurality of orthogonal second outbound RF signals in accordance with the second beamforming setting.

14. The multiple mode RF transceiver of claim 12, wherein the beamforming section further comprises:

a first directional coupler coupled to sense at least one of;

one of the first outbound RF beamforming signals to produce a sensed first outbound RF beamforming signal; and

one of the second outbound RF beamforming signals to produce a sensed second outbound RF beamforming signal;

a second directional coupler coupled to sense at least one of;

another one of the first outbound RF beamforming signals to produce another sensed first outbound RF beamforming signal; and

another one of the second outbound RF beamforming signals to produce another sensed second outbound RF beamforming signal; and

a calibration module coupled to adjust at least one of;

the first beamforming setting based on at least one of the sensed first outbound RF beamforming signal and the another sensed first outbound RF beamforming signal; and

the second beamforming setting based on at least one of the sensed second outbound RF beamforming signal and the another sensed second outbound RF beamforming signal.

15. The multiple mode RF transceiver of claim 12, wherein each of the first and second RF sections comprises:

a polar coordinate up conversion module coupled to convert the outbound symbol stream into an up converted signal;

or

a frequency coordinate up conversion module coupled to convert the outbound symbol stream into the up converted signal;

or

a Cartesian coordinate up conversion module coupled to convert the outbound symbol stream into the up converted signal; and

a power amplifier module coupled to amplify the up converted signal to produce a first or second outbound RF signal.

16. The multiple mode RF transceiver of claim 15, wherein the power amplifier module comprises:

an amplitude modulation module coupled to amplitude modulate the up converted signal based on amplitude information of the outbound symbol stream.

17. The multiple mode RF transceiver of claim 9, wherein the transmitter section comprises:

an oscillation module coupled to;

when the first communication protocol is enabled, generate, in accordance with the first beamforming setting, a plurality of first phase modulated and beamforming oscillations based on a first phase modulation information of the first outbound symbol stream; and

when the second communication protocol is enabled, generate, in accordance with the second beamforming setting, a plurality of second phase modulated and beamforming oscillations based on a second phase modulation information of the second outbound symbol stream; and

a power amplifier module coupled to;

amplify the plurality of first phase modulated and beamforming oscillations to produce the first outbound RF beamforming signals; and

amplify the plurality of second phase modulated and beamforming oscillations to produce the second outbound RF beamforming signals.