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AssigneeRadiawave Technologies Co., Ltd.
InventorsYigao Shao, Yulin Tan, Jon Sweat Duster, Haigang Feng, Ning Zhang
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The present disclosure provides a power amplifier and an electrical device. The two-stage power amplifier architecture is tuned staggered before power combining. A previous stage matching network and its input matching are split into a cascaded staggered tuning, such that the center frequency is at frequency point 1 less than the design frequency point and frequency point 2 greater than design frequency point, and then the power combining stage is tuned at the design frequency point. At advanced process nodes (such as 65 nm or below), compared with the known architecture, in-band signal quality and out-of-band filtering effect of the power amplifier chip integrating this architecture will be better when using the same number of transformers (same area), the reliability will be better. Due to its good flatness within the band, this architecture is especially suitable for carrier aggregation communication occasions.
A power amplifier, comprising a staggered tuning circuit and a power combining circuit comprising two differential amplifiers, wherein:
An electronic device, comprising a power amplifier comprising a staggered tuning circuit and a power combining circuit comprising two differential amplifiers, wherein:
Dependencies are inferred from the claim text.