H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 3/68 (2006.01) H03F 1/32 (2006.01) H03F 3/21 (2006.01) H03F 3/60 (2006.01)
Patent
CA 2324846
A signal amplification system involves decomposing a signal into two or more parts, amplifying the parts and then combining the amplified parts to produce the amplified signal. The decomposition can be done such that the resulting parts have characteristics that are amenable to efficient amplification. For example, decomposition of the signal to be amplified can be done using at least one threshold. The first part of the signal to be amplified can be formed by the portion of the signal within the threshold. As such, because the first part forms a signal with a lower PAR, the first part of the signal can be amplified more efficiently than the original signal. The second part of the signal can be formed by the portion of the original signal beyond the threshold. Because the second part is mostly zero, the second part can also be amplified efficiently, for example with a class C type amplifier which does not dissipate any energy when the input signal is zero.
Ma Zhengxiang
Polakos Paul Anthony
Kirby Eades Gale Baker
Lucent Technologies Inc.
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