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Title:Switched-Capacitor Radio Frequency Delay Circuits For Next Generation Wireless Systems
Author(s):Yang, Jinyao
Contributor(s):Zhou, Jin
Degree:B.S. (bachelor's)
Genre:Thesis
Subject(s):delay circuit
RF engineering
next generation communication
harmonic transfer functions
switched capacitor
linear periodic time variant
Abstract:In next generation communication systems, because of high frequency, massive MIMO with hundreds of antennas should be used to transmit sufficient power. This number of antennas naturally generates tens of nanoseconds of delay, which needs to be compensated later on. Whereas phase shifters only work for narrowband signals and digital delay circuits require analog circuits with harsh linearity, true time delay in the RF domain is useful. Since none of the previous RF delay circuit designs produce tens of nanosecond delay, a switched capacitor circuit with 144 paths is proposed and simulated in this thesis. The simulation result shows that around 10 ns delay was successfully generated for wideband signals. Moreover, the harmonic transfer function of a typical delay circuit from output to input is derived.
Issue Date:2021-05
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/110358
Date Available in IDEALS:2021-08-25


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