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Title: Hybrid Digital PA and Bidirectional Digital Transceiver Circuits in Silicon
Committee:
Dr. Wang, Advisor
Dr. Raychowdhury, Chair
Dr. Swaminathan
Abstract: The objective of the proposed research is to develop silicon based digital RF frontends to offer excellent RF performance and extensive reconfigurability. Advent of Internet-of-Things (IoT), communication devices that most people carry on and smart factories are causing a surge of connected devices and proliferation of wireless sensor nodes. Modern communication systems, which need to be connected everywhere and at all times, require each device to be a small size, and require stringent standards for the RF systems. From a transmitter perspective, in face of explosive increase in data rates requires high speed complex modulation schemes with high spectral efficiency and large peak-to-average power ratios (PAPRs), such as high-order quadrature amplitude modulations (QAMs) and orthogonal frequency-division multiplexing (OFDM). From a receiver perspective, massive RF applications lead to a crowed spectrum, making receivers susceptible to mutual interference. Hence, along with cost and power consumption, interference robustness is becoming a major concern for the radios targeting these applications. This proposal focuses on the design of digital power amplifier and transceiver, which can be one of solutions for these requirements.
