RF • Microwave • Quantum Sensing
RF & Microwave Engineer working at the intersection of electromagnetics and Rydberg-atom sensing
I develop RF sensing techniques using Rydberg atoms while drawing on a background in antennas, microwave engineering, electromagnetic simulation, and wireless systems. My path spans telecommunications, antenna and electromagnetic research, 5G RF hardware, HFSS-based engineering at Ansys, and now Rydberg-atom RF sensing at NIST.
Professional & Research Profiles
Characterizes AC-Stark-based Rydberg electrometry from 50 to 900 MHz across cesium nD5/2 states with n = 60–100, reaching µV/(m√Hz)-scale sensitivities and revealing the tradeoff between sensitivity and dynamic range.
Phase-independent angle-of-arrival estimation from Stark-shifted Rydberg-EIT spectra measured at a single spatial location.
Floquet/Shirley interpretation of avoided crossings, RF-dressed states, replicas, and multiphoton coupling pathways in Rydberg-EIT spectra.
Compact direction finding from subwavelength standing-wave measurements in a Rydberg-atom sensor without a conventional phase-resolved antenna array.
Developing compact Rydberg-atom RF sensors for electric-field measurement and angle-of-arrival estimation, including subwavelength standing-wave, fluorescence-imaging, and Stark-spectroscopic approaches.
Studying AC Stark shifts, Autler-Townes structure, arbitrary RF polarization, Floquet replicas, multiphoton coupling pathways, and avoided crossings that govern the response of Rydberg-EIT sensors.
Characterizing calibrated electric-field response across VHF, UHF, and microwave frequencies, including AC-Stark-based measurements from 50 to 900 MHz, with emphasis on sensitivity, dynamic range, heterodyne beat-note detection, intermodulation, and signal fidelity.
Conducting experimental and theoretical research in Rydberg-atom RF sensing, spanning direction finding, RF electrometry, RF-dressed spectroscopy, Floquet modeling, and automated RF/optical measurements.
Supported engineering teams across antennas, PCBs, sensing devices, EMI/EMC, signal integrity, power integrity, and radiation problems using HFSS and related simulation tools.
Contributed to digital beamforming-array simulation work associated with AFRL.
Designed, fabricated, and experimentally tested a 3.5 GHz passive bandpass filter and contributed to antenna design and testing for 5G base-station applications.
Worked with wired telephony, 2G/3G cellular systems, optical-fiber networks, and customer-facing telecommunications operations.
Contributed to system-level simulation of digital beamforming arrays using Ansys HFSS, Keysight PathWave SystemVue, and AGI/STK, combining electromagnetic models with RF-system and platform-level behavior.
Designed, fabricated, and experimentally validated a passive 3.5 GHz bandpass filter for the IIT Madras 5G Testbed.
Analyzed spacecraft attitude, antenna radiation patterns, LHCP/RHCP polarization, orbital visibility, and link budgets for a LEO satellite communication system.
Developed and studied multipole and spherical-harmonic representations of radiation from wire, patch, and horn antennas, with results published in IEEE Antennas and Wireless Propagation Letters.
A Rydberg-atom field-imaging approach that combines light-sheet excitation and fluorescence imaging to map electromagnetic fields over a two-dimensional region.
A compact angle-of-arrival sensing concept that uses subwavelength standing-wave structure inside a Rydberg vapor-cell system to estimate incoming RF direction from amplitude measurements.
A growing collection of technical reference material covering electromagnetics, antennas, RF and microwave systems, computational methods, sensing, quantum-enabled RF concepts, and engineering applications. The notes are developed with AI-assisted drafting and my own organization and technical review.
Explore EM Notes →Expected 2026 • GPA 3.83/4.00
2025 • GPA 3.83/4.00
2021 • CGPA 8.34/10
2021 • CGPA 8.34/10
I read broadly across physics, science, history, philosophy, and literature, and keep a separate page as a personal record of books and ideas worth revisiting.
Explore my reading list →I am interested in research and engineering opportunities involving RF and microwave systems, antennas, electromagnetic simulation, advanced RF measurements, wireless systems, and quantum-enabled sensing.
trvabc@gmail.com · Resume · LinkedIn · Google Scholar · Web of Science · ORCID · YouTube