Research Projects
1. Blocker-tolerant receiver and RF-domain signal processing
: Physics-modeling with theoretical analysis and simulation + custom-chip taped-out for verification.
(i) Software-defined wireless receiver front-end utilizing hybrid CMOS-acoustic mixer-first architecture.
Impedance Aliasing Phenomenon (JSSC21) 
Mathematical analysis on harmonically-coupled feedback loops in LTV system interfaced with general LTI systems 
Concept of proposed architecture for wireless receiver applications (JSSC21, RFIC20, RFIC21) 
Enabling tunable 2.5-to-4.5GHz SAW BPF design from a fixed 1.6GHz SAW BPF (RFIC20) 
Enabling tunable 3.5-to-6.2GHz BAW BPF design from two fixed 2.6GHz BAW BPFs (RFIC21) 
(ii) Full-Duplex radios and self-interference cancellation in RF/analog domain (SIC)
Full-Duplex/FDD Duplexer and Receiver with Autonomous Adaptation Loops (IMS20) 
- Designed and simulated various gradient-descent-based SIC algorithms.
(iii) Commutated-Circuit-and-Acoustic-Delay-Line-based Adaptive Canceller (CADELAC)
- Neural-network-based weight initialization scheme for direct-RF wideband self-interference cancellation to deal with non-idealities from frequency-translated acoustic-delay lines.
2. Blind Source Separation
(i) Under-determined source separation and localization using rotational motion and spatial-aliasing.
- Proposed an idea to utilize aliased space (angular-aliasing) for solving under-determined inverse problems by reducing overcompleteness.
RoSS: Utilizing Robotic Rotation for Audio Source Separation 
- Simulated and measured RoSS algorithm via rotational motion for acoustic applications for a proof-of-concept design.
