A 20Mbps 5.8mw QPSK transmitter based on injection locking and Class-E PA for wireless biomedical applications | IEEE Conference Publication | IEEE Xplore

A 20Mbps 5.8mw QPSK transmitter based on injection locking and Class-E PA for wireless biomedical applications


Abstract:

This paper presents a power-efficient, high data rate QPSK transmitter for wireless biomedical applications at the frequency of 430MHz. The transmitter architecture is ba...Show More

Abstract:

This paper presents a power-efficient, high data rate QPSK transmitter for wireless biomedical applications at the frequency of 430MHz. The transmitter architecture is based on a sub-harmonic injection-locked voltage-controlled oscillator (VCO) and the phase modulation is realized by directly modifying the VCO self-resonant frequency. A single-ended Class-E power amplifier (PA) is adopted in the transmitter with an efficiency of 46% (including pre-driver). Implemented in 0.18μm CMOS technology, the proposed transmitter consumes 5.8mw with 20Mbps data rate and 0.11dBm output power.
Date of Conference: 25-28 October 2017
Date Added to IEEE Xplore: 11 January 2018
ISBN Information:
Conference Location: Guiyang, China

References

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