Precision Frequency and Phase Synthesis Techniques in Integrated Circuits for Biosensing, Communication and Radar

摘要: Today’s CMOS technology provides circuit designers with a powerful implementation platform that supports innovation opportunities on both circuit-topology and system-architecture levels. Moreover, the versatility of opens door for plethora challenging exciting interdisciplinary research. This dissertation focuses investigating novel techniques applications precision frequency phase synthesis in CMOS. It consists two parts: compatible molecular-level biosensor multiple-beam/multi-band scalable phased array receiver system. In first part, shift based magnetic biosensing scheme is introduced to address Point-of-Care (PoC) biomolecular diagnosis high-sensitivity, portable cost low applications. Compared existing schemes, proposed achieves competitive sensitivity without using optical devices, external biasing fields or expensive post-processing steps. A discrete verifies sensing mechanism reveals several design insights. An integrated standard 130nm process then designed differential temperature controlling schemes. Overall, uncertainty 0.13ppm relative shift, sensor reliable detection one single micron-size particle (D=4.5um, 2.4um 1um) as well 1n-Molar real DNA samples labeled by nanoparticles (D=50nm). second high-resolution compensation technique mismatch offset issues encountered practical employs dense Cartesian interpolation an easily architecture wide operation bandwidth. As example, 6-to-18GHz dual-band quad-beam presented, which capable forming four spatially independent beams at different frequencies across tritave With compensation, element has achieved maximum RMS error 0.5˚ amplitude variation less than 1.5dB 360˚ over full For 4-element system chip, electrical pattern measured 6GHz, 10.4GHz 18GHz, worst case peak-to-null ratio 21.5dB. addition, broadband inductorless methodology Cherry-Hooper topology chip area saving. examples, we will show DC-19GHz 10dB gain buffer amplifier, DC-12GHz rotator 10-bit resolution beam-forming network 18GHz dual-beam capability.