Wideband Circuits and Antenna Designs for mm-Wave/5G Phased Arrays
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Lee, Sanghoon
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Abstract
The objective of this work is to present the performance and feasibility of wideband circuits and antennas for future mm-Wave phased array systems. Chapter 1 introduces the motivation of this research, first explaining the desire to operate at higher frequency regimes. Then focus is directed on the rich application spaces at mm-Wave frequencies and the corresponding need for wideband, compact, and fully integrated system-on-chip (SoC) solutions. A brief study of advanced node commercial silicon processes is also examined to demonstrate the increasing feasibility of implementing the aforementioned SoC solutions on silicon. Chapter 2 presents a design methodology of a novel ultra-compact, low-loss, and wideband mm-Wave Wilkinson Power Divider (WPD). Careful study and analysis reveal optimal and necessary design parameters and equations in terms of the coupling and mutual inductances within the structure, yielding a device that is competitive with existing literature. Chapter 3 first introduces the operation principle of spiral antennas (SA). The unique properties of SAs that make them great candidates for use in future mm-Wave phased arrays are explored. The rest of this chapter discusses the design, analysis, and results of an octagonal 4-arm Archimedean SA. Lastly, Chapter 4 provides closing remarks and discusses potential future work.
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2021-05-05
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