Amplifier

An amplifier (100) is provided for amplifying a complex input communication signal (109) having an in-phase and quadrature component. The amplifier has a modulation circuitry (110) configured to convert the input signal to quantized samples (111) by performing oversampling, where the quantized samples represent a finite set of constellation points; and a phase mapping circuitry (120) configured to map the quantized samples onto two constant-envelope phase-modulated signals (121, 122) selected from a finite set of constant-envelope phase-modulated signals (172, 221-224) having a carrier frequency fc (171) and (different) constant phases. A first and second power amplifier (130, 140) is configured to amplify the two constant-envelope phase-modulated signals by a gain G; and a combiner (150) is configured to combine the two amplified constant-envelope phase-modulated signals (131, 141) thereby obtaining a complex output communication signal (151) with the carrier frequency fc representing an amplification (161)

Patent Publication Number: US20250364954

Source: USPTO

Year publication: 2025

Status: Requested

Technology domains: undefined