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1. (WO2015175349) FRONTAL RADIOFRÉQUENCE (RF) À MULTIPLES MODULES AMPLIFICATEURS À FAIBLE BRUIT
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CLAIMS;

1. An apparatus comprising:

at least one first stage amplifier configured to amplify received carrier signals to generate at least one first stage carrier group, each first stage carrier group includes a respective portion of the carrier signals; and

second stage amplifiers configured to amplify the first stage carrier groups, each second stage amplifier configured to amplify a respective first stage carrier group to generate two second stage output signals.

2. The apparatus of Claim 1, the two second stage output signals output to different demodulation stages, each demodulation stage configured to demodulate a selected carrier signal.

3. The apparatus of Claim 1, the carrier signals comprise primary and diversity carrier signals.

4. The apparatus of Claim 1, the at least one first stage amplifier comprising:

at least one first low noise amplifier (LNA) configured to amplify the received carrier signals to generate a first amplified output having a first portion of the carrier signals and to generate a second amplified output having a second portion of the carrier signals;

at least one second low noise amplifier (LNA) configured to amplify the received carrier signals and to generate a third amplified output having the first portion of the carrier signals and to generate a fourth amplified output having the second portion of the carrier signals; and

a routing module configured to route at least one of the first, second, third, and fourth amplified outputs to a first output port and to route at least one of the first, second, third, and fourth amplified outputs to a second output port.

5. The apparatus of Claim 1, the first stage carrier groups comprise single ended signals.

6. The apparatus of Claim 2, the second stage amplifiers comprising interface amplifiers, each interface amplifier comprising at least one low noise amplifier configured to amplify a selected first stage carrier group to generate a second stage amplified output having a first selected amplified carrier signal and a second selected amplified carrier signal.

7. The apparatus of Claim 6, further comprising matching circuits configured to match the first stage carrier groups to the interface amplifiers.

8. The apparatus of Claim 6, further comprising transformer modules configured to transform the first and second selected amplified carrier signals to differential signals.

9. The apparatus of Claim 8, each demodulator stage comprising mixers configured to receive the differential signals and convert the differential signals to baseband signals based on a local oscillator.

10. The apparatus of Claim 9, the mixers configured as double balanced mixers.

11. The apparatus of Claim 1, the first stage amplifiers formed on one or more integrated circuits and the second stage amplifiers formed on a single integrated circuit.

12. The apparatus of Claim 11, the one or more integrated circuits and the single integrated circuit reside on a printed circuit board.

13. The apparatus of Claim 12, the first stage carrier groups routed by signal traces of the printed circuit board to the single integrated circuit.

14. The apparatus of Claim 13, the single integrated circuit comprising interface pins connected to the signal traces of the printed circuit board.

15. The apparatus of Claim 14, the interface pins of the single integrated circuit arranged in a carrier-centric arrangement to position selected interface pins associated with an output of each second stage amplifier proximate to a respective demodulator stage to isolate signal traces connected to the demodulator stage and to obtain orthogonal signal trace crossings of signal traces connected to different demodulator stages.

16. An apparatus comprising:

means for amplifying received carrier signals to generate at least one first stage carrier group, each first stage carrier group includes a respective portion of the carrier signals; and

means for amplifying each first stage carrier group to generate two second stage output signals.

17. The apparatus of Claim 16, the two second stage output signals output to different demodulation stages, each demodulation stage configured to demodulate a selected carrier signal.

18. The apparatus of Claim 16, the means for amplifying the received carrier signals comprising:

means for generating a first amplified output having a first portion of the carrier signals, a second amplified output having a second portion of the carrier signals, a third amplified output having a third portion of the carrier signals, and a fourth amplified output having a fourth portion of the carrier signals; and

means for routing a first selected one of the first, second, third and fourth amplified outputs to a first output port and for routing a second selected one of the first, second, third, and fourth amplified outputs to a second output port.

19. The apparatus of Claim 17, further comprising means for transforming the two second stage output signals to differential signals.

20. The apparatus of Claim 19, each demodulator stage comprising means for mixing configured to receive the differential signals and convert the differential signals to baseband signals based on a local oscillator.