4 papers
Accelerated Discovery of Materials with Extreme Work Functions through Uncertainty-Aware Multi-Fidelity Screening
Jun Meng, Ryan Jacobs, Rehan Kapadia +1
Work function plays a pivotal role in technologies ranging from energy conversion and electronics to catalysis. In this work, we integrated machine learning (ML) with multi-fidelit…
Low-probability of Intercept/Detect (LPI/LPD) Secure Communications Using Antenna Arrays Employing Rapid Sidelobe Time Modulation
Jiahao Zhao, Shichen Qiao, John H. Booske +1
We present an electronically-reconfigurable antenna array offering low probability of intercept/detect (LPI/LPD) and secure communications capabilities simultaneously at the physic…
Direct evidence of low work function on SrVO cathode using thermionic electron emission microscopy and high-field ultraviolet photoemission spectroscopy
Md Sariful Sheikh, Lin Lin, Ryan Jacobs +5
Perovskite SrVO has recently been proposed as a novel electron emission cathode material. Density functional theory (DFT) calculations suggest multiple low work function surfac…
Class-E, Active Electrically-Small Antenna for High-Power Wideband Transmission at the High-Frequency (HF) Band
Nathan Strachen, John H. Booske, Nader Behdad
Antennas operating at the high-frequency (HF) band (3-30 MHz) are frequently electrically small due to the large wavelength of electromagnetic waves (10-100 m). However, the bandwi…