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In this paper a power amplifier (PA) linearization technique is proposed where an RF predistorter (RFPD) is used in conjunction with a linearization amplifier (LA) to achieve a more effective joint pre-distortion and post-distortion linearization. This approach is suitable for use with small cells PAs because its power and cost overhead are scalable with the power range and cost of the PA. To demonstrate...
In this paper, a wideband RF power amplifier (PA) linearization technique based on the addition of a linearization amplifier (LA) is proposed. The technique is suitable for low-powered and low-cost small cell and fifth-generation (5G) large-scale multi-antenna PA designs since its power and cost overhead does not increase with the input signal bandwidth and because they are scalable with the power...
High impedance at the drain of a transistor at low frequencies can cause significant distortions in power amplifiers (PAs). This problem is exacerbated by concurrent dual-band signal transmissions required by carrier aggregation. In this paper a technique is proposed which uses a parallel auxiliary impedance branch at the transistor's drain node to maintain low drain impedance for an extensive range...
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