Publications in VIVO

Co-author Network

Popovic, Zoya

Distinguished Professor and the Lockheed Martin Corporation Endowed Chair of Radio Frequency Engineering

Positions

Endowed Chair, College of Engineering and Applied Science
Distinguished Professor, Electrical, Computer and Energy Engineering (ECEE)

Research Areas

Research

research overview

Prof. Popovic advises on research in areas of high-efficiency linear and broadband microwave power amplifiers, low-loss broadband microwave and millimeter-wave circuits and antennae, millimeter-wave and THz quasi-optical techniques, active antenna arrays, wireless powering for low-power sensors and high-power wireless near-field charging, microwave applications in medicine such as core body temperature measurements, microwave heating for waste management and Rydberg atom microwave and millimeter-wave quantum sensors.

keywords

Microwave and millimeter-wave analog circuits and antennae

Publications

selected publications

book
chapter
- Solid-State Circuits for Wireless Power Transfer. 11-48. 2018
- Broadband Class-E. 387-428. 2012
- Class-D Power Amplifiers. 83-128. 2012
- Class-E with Finite DC-Feed Inductance. 305-356. 2012
- Class-E with Quarterwave Transmission Line. 357-386. 2012
conference proceeding
- Creating a valuable decision tree from a knowledge graph: emphasizing topology over content. Virchows Archiv: an international journal of pathology. S399-S399. 2024
- Long-term outcomes of patients with apical hypertrophic cardiomyopathy: incorporation of a novel risk score. European Heart Journal. 2024
- Tunable Sensitivity Enhancement of a Rydberg-Atom Electrometer. Conference on Precision Electromagnetic Measurements. 2024
- Integrated 75-100 GHz In-Band Full-Duplex Front End GaN MMIC. IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium. 1040-1043. 2024
- RF Interference Cancellation for Microwave Thermometry. IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium. 1015-1018. 2024
journal article
- Classification of Multi-Layer Tissue-Mimicking Dielectric Stacks From 2 to 20 GHz. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology. 36-41. 2025
- 1-5 GHz 3.5-bit GaN MMIC Variable Attenuator With 55 dB Range. 253-256. 2025
- A GaAs MMIC Correlation-Dicke Radiometer With Compact Antenna for Internal Body Thermometry. IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology. 2025
- Integrated 75–100 GHz In-Band Full-Duplex Quasi-Circulator-Based Front-End GaN MMIC. IEEE Transactions on Microwave Theory and Techniques. 1-12. 2025
- Deliberate Source/Load Mismatch for Linearity and Efficiency of Discrete Supply Modulated GaN PAs. IEEE Transactions on Microwave Theory and Techniques. 6833-6844. 2024

Teaching

courses taught

COEN 1830 - Special Topics
Primary Instructor - Fall 2023 / Fall 2024
Explores topics of interest in engineering. Content varies by instructor and semester. May be repeated up to 9 total credit hours.
ECEN 3400 - Electromagnetic Fields and Waves
Primary Instructor - Spring 2019
Electromagnetic fields are covered at an introductory level, starting with electrostatics and continuing with DC current, magnetostatics, time-varying magnetic fields, waves on transmission lines, Maxwell's equations and the basics of plane waves. The use of fields in inductors, capacitors, resistors, transformers, and energy and power concepts are studied.
ECEN 3410 - Electromagnetic Waves and Transmission
Primary Instructor - Spring 2019 / Spring 2020 / Spring 2023
Covers reflected and transmitted plane waves in layered media, Poynting's theorem of electromagnetic power, two-conductor transmission line theory and practice, Smith chart usage and impedance matching, waveguides, and elements of antenna theory.
ECEN 4634 - Microwave and RF Laboratory
Primary Instructor - Fall 2019 / Spring 2021
This course is a hands-on introduction to RF and microwave topics, from fundamentals including vector network analyzer (VNA) calibration and operation, power measurements, and antenna characterization, to system-level topics such as RADAR systems and superheterodyne links. Students work in small groups on weekly experiments based on both coaxial and waveguide setups. An understanding of electromagnetic waves (such as covered in ECEN 3400 and ECEN 3410) is assumed. The graduate version of the course (ECEN 5634) includes additional homework and exam problems and extended laboratory exercises compared to ECEN 4634. Same as ECEN 5634.
ECEN 5004 - Special Topics
Primary Instructor - Spring 2018
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours.

ECEN 5014 - Special Topics
Primary Instructor - Spring 2019 / Spring 2020 / Fall 2021 / Spring 2024
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours.

ECEN 5024 - Special Topics
Primary Instructor - Fall 2020 / Fall 2021
May be repeated up to 9 total credit hours. Same as ECEN 4024.

ECEN 5104 - Passive Microwave Circuits
Primary Instructor - Fall 2024
Building on fundamentals taught in a class such as ECEN 3410 (Electromagnetic Waves), this course teaches fundamentals of microwave passive circuit analysis using scattering parameters. Design of impedance matching networks, impedance transformers, couplers, filters, dividers/combiners and other typical circuits used at microwave frequencies are covered. Using an industry-standard CAD tool, design of microstrip circuits is emphasized. Assignments include theoretical and CAD approaches to analysis and design of passive microwave transmission-line circuits.

ECEN 5114 - Electromagnetic Theory
Primary Instructor - Fall 2023
This course covers theory and applications of Maxwell's equations at the graduate level, including various electromagnetic wave types. Additionally, fundamental electromagnetic theorems such as Poynting, equivalence, duality, reciprocity and compensation, are studied through examples across the electromagnetic spectrum.

ECEN 5634 - Microwave and RF Laboratory
Primary Instructor - Fall 2019 / Spring 2021
This course is a hands-on introduction to RF and microwave topics, from fundamentals including vector network analyzer (VNA) calibration and operation, power measurements, and antenna characterization, to system-level topics such as RADAR systems and superheterodyne links. Students work in small groups on weekly experiments based on both coaxial and waveguide setups. An understanding of electromagnetic waves (such as covered in ECEN 3400 and ECEN 3410) is assumed. Same as ECEN 4634.

Background

education and training

Ph.D., California Institute of Technology 1990
M.S., California Institute of Technology 1986
B.S., Univ of Belgrade (Yugoslavia) 1985

awards and honors

NAI Fellow, conferred by National Academy of Inventors, 2023
Membership, conferred by National Academy of Engineering, 2022
Distinguished Research Lectureship, conferred by Research & Innovation Office, 2015
Rudolf Henning Distinguished Mentoring Award, conferred by Institute of Electrical and Electronics Engineers, 2015
Distinguished Professorship, conferred by University of Colorado President, 2010

International Activities

geographic focus

Australia Country
Austria Country
Belgium Country
Brazil Country
France Country

Other Profiles

ORCID iD

http://orcid.org/0000-0001-7651-2254

Google Scholar

https://scholar.google.com/citations?user=kSy41dkAAAAJ&hl=en