A 2.4-GHz 1.3-mW OQPSK RF Front-End TX Based on an Injection-Locked Power Amplifier
IEEE Journal of Solid-State Circuits（2021）
摘要
An injection locking power amplifier is presented. The proposed solution, tailored to quadrature phase shift keying (QPSK) modulation for IoT has been realized by exploiting the property of an injection-locked frequency divider to work as a phase rotator. Hence, the divider’s output is directly coupled to the antenna by a transformer to deliver the desired output power. The combination of these tw...
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关键词
Transmitters,Resonant frequency,Phase shift keying,Mixers,Injection-locked oscillators,Voltage-controlled oscillators,Radio frequency
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