RECEIVER ARCHITECTURE DEMODULATING 4N-QAM DIRECTLY IN ANALOG DOMAIN WITHOUT ANALOG-TO-DIGITAL CONVERTER (ADC)

Abstract: disclosed are example embodiments of a receiver. the receiver including a front-end amplification and filtering block configured to amplify a received signal and filter out a potential jammer signal from a communication channel. the receiver also including a quadrature mixer, coupled to the front-end amplification and filtering block, and configured to down-convert the amplified and filtered signal to baseband to generate a quadrature lo signal. additionally, the receiver including a carrier synchronization loop configured to synchronize the quadrature lo signal and carrier phase of the received signal. the receiver also including a demodulator coupled to the quadrature mixer and the carrier synchronization loop.

Inventor(s): Huan Wang, Payam Heydari

CPC Classification: H04L27/2649 ({Pulse-shaped multi-carrier, i.e. not using rectangular window})

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