Continuous contactless respiration monitoring of co-sleeping subjects faces a dilemma: conventional single-site multiple-input multiple-output (MIMO) radars struggle with limited angular resolution fo...
This paper, for the first time, integrates self-injection-locked technology into a pulse-Doppler radar to simultaneously detect target range and Doppler information under extremely low equivalent isot...
Continuous monitoring of cardiovascular activity is essential for personalized healthcare and early detection of cardiac abnormalities. Conventional wearable technologies, including electrocardiogram,...
This work presents the first super-regenerative oscillator (SRO)-based sensor array capable of beam-null controlled vital sign detection, extending beyond previously reported single-element SRO implem...
This paper presents a noninvasive microwave wrist pulse sensor that integrates a circular substrate integrated waveguide (SIW) cavity with an interdigitated capacitor (IDC) loaded complementary split ...
Over the years, VNA-based mixer and frequency converter measurements have evolved to improve measurement uncertainties under a variety of scenarios and simplify setups in some cases (reducing time req...
The Generalized Thru-Reflect-Line (GTRL) calibration technique was originally developed for multi-mode waveguides. This work explored the GTRL technique for single-tier calibration of on-wafer two-por...
This work presents the design of a novel fixture for evaluating the performance of high-speed cables, with the goal of providing an effective solution for production line testing. The 2X-Thru de-embed...
This work presents a new cryogenic S-parameter measurement technique that performs SOLT calibration entirely at room temperature (RT) to overcome the challenges in conventional cryostat calibration. A...
This paper presents a novel, non-invasive monitoring technique for rapid material characterization to advance automated precision synthesis. The proposed system employs a single-port microwave reflect...