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The envelope elimination and restoration (EER) technique, which was proposed by Kahn, is a recognized means of highly-efficient linear amplification. This paper presents a novel EER transmitter using injection-locked oscillators (ILOs). In the proposed architecture, an ILO that is combined with a mixer and a low-pass filter extracts an envelope signal and a phase-modulated RF signal from an RF input...
Direct-conversion receiver is the most prevalent receiver architecture today for wireless communications. However, it requires coherent demodulation using the phase-locked loop (PLL)-based carrier recovery techniques, which increases circuit complexity and power consumption of the receiver. This paper presents a novel polar receiver that utilizes two injection-locked oscillators (ILO) stages to extract...
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