Ultra-Low-Power Super Regenerative Receivers for Wireless Communication
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In this Thesis, both low frequency and high frequency ultra-low-power super-regenerative receiver with detailed circuits and system design for wireless communication networks has been proposed in this thesis. The SRR design has been applied super-regeneration theory which simplifies the receiver circuits implementation without increasing the power consumption and improves sensitivity. LC-SRO based energy detector, phase-locked loop, frequency locked loop, (PLL, FLL etc), Automatic -Gm controller, high speed, high conversion gain envelope detector (ED) and advanced quenching techniques (OQW, CQW) are presented in this thesis. This thesis also focuses on how to improve SRR’s sensitivity (including SNR, BER) under high data rate with minimum power consumption. A series of advanced quenching techniques (OQW, CQW) are presented and studied for LC-VCO based SRO. High speed and high conversion gain envelope detector with automatic -gm controller will help the proposed SRR achieves great immunity to PVT variations and improve the data rate. Finally, FLL based frequency calibration techniques allows the SRR improves its sensitivity and selectivity against PVT variations.