Research

Research across circuits, systems, and electromagnetics.

We develop new concepts at the intersection of these fields—and use analysis, simulation, and experiment to learn what is possible.

Energy-constrained RF

Ultra-low-power receivers, wake-up systems, and architectures that trade energy for detection, classification, and localization performance.

Wake-up receivers · low-SWaP sensing · minimum-energy inference

Representative workNear-zero-power multiband RF wake-up receiver Interference-robust detector-first wake-up receiver

Architecture of a near-zero-power reconfigurable multiband RF wake-up receiver — Receiver architecture

Resilient RFICs

Integrated circuits that maintain useful performance under interference, radiation, process variation, and environmental stress.

Robust front ends · radiation tolerance · reconfigurable circuits

Representative workNear-zero-power reconfigurable and robust multiband RF wake-up receiver Transfer-function programmability in power-efficient low-noise amplifiers

Measured transfer-function states of a programmable power-efficient low-noise amplifier — Current UMD research

Millimeter-wave and sub-THz

Compact power amplification, frequency generation, and broadband signal paths at frequencies where layout, packaging, and measurement become inseparable.

Power amplifiers · multipliers · phased circuits

Representative workMillimeter-wave receiver with complementary current reuse Double-balanced frequency doubler achieving 70% drain efficiency

Architecture of a millimeter-wave receiver using complementary current reuse — Receiver architecture

Heterogeneous integration

IC, device, package, and interface co-design for experimental RF systems that combine otherwise incompatible technologies.

3D integration · advanced packaging · multi-technology systems

Representative workHeterogeneously integrated active probe for in-situ measurements

Micromachined active-probe hardware and heterogeneously integrated die — Integrated hardware

Arrays and electromagnetic systems

Waveform, polarization, and aperture concepts for controlling what an RF system reveals outside its intended field of view.

Phased arrays · polarization agility · resilient radar

Representative workSymbol-rate polarization scrambling for sidelobe coherence suppression and intercept denial

Concept diagram showing a fixed main-beam polarization and time-varying sidelobe polarization — Polarization concept