research overview
- Broadband phased arrays and non-reciprocal devices, like active circulators, phase shifters, and MMIC power amplifiers.
- Contact Info
Marzall, Laila F
Positions
- Asst Research Professor, Electrical, Computer and Energy Engineering (ECEE)
- Lecturer, Electrical, Computer and Energy Engineering (ECEE)
Research Areas
Research
Publications
selected publications
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conference proceeding
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S-Band Active Circulator with Reactive Load Tuning for Isolation Recovery
2025
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W-band Power Amplifier with Reconfigurable Output Matching Network
2025
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40-44 GHz Frequency-Tunable MMIC Butler Matrix.
852-855.
2024
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40-44 GHz MMIC Frequency Tunable Butler Matrix.
106-107.
2024
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GaAs MMIC Oscillators for Rydberg Atom RF Receivers.
70-73.
2023
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V- Through W-Band GaN Active Circulator.
249-252.
2023
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Integration of Active Circulators in STAR Phased Arrays.
1157-1158.
2023
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Dynamic Supply Modulation of a 6-12 GHz Transmit Array
2023
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Nonlinear Co-Simulations for Transmit Broadband Phased Arrays.
133-134.
2022
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An Octave Bandwidth Spatial Power Combiner with Supply Voltage Control.
IEEE MTT-S International Microwave Symposium digest. IEEE MTT-S International Microwave Symposium.
1017-1019.
2022
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6-12 GHz Horn Antenna Array with Thermal Analysis for Power Amplifier Integration
2022
- Active MMIC Circulator Performance in a Phased-Array-Like Environment 2021
- Active MMIC Circulator Performance in a Phased-Array-Like Environment 2021
- Active MMIC Circulator Performance in a Phased-Array-Like Environment 2021
- Active MMIC Circulator Performance in a Phased-Array-Like Environment. 1186-1189. 2021
- Active MMIC Circulator Performance in a Phased-Array-Like Environment 2021
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An X-Band Quasi-Circulator GaAs MMIC
2019
- Design-Oriented Modelling of Microstrip Ferrite Circulators. 215-218. 2018
- Frequency Selective Ferrite Circulators with Quasi-Elliptic Transmission Response. 211-214. 2018
- A Design Approach for Monolithically Integrated Broadband Circulators 2018
- Bandwidth Design of Ferrite-Based Circulators 2018
- Co-Simulations of DC Magnetic Bias Fields and RF Performance for Microwave Ferrite Circulators 2018
- Circularly-Polarized Planar Array of Sequentially Rotated E-Shaped Elements. AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society). 2010
- An Effective Strategy for Designing Probe-fed Linearly-polarized Thick Microstrip Arrays with Symmetrical Return Loss Bandwidth. Progress in Electromagnetics Research Symposium. 212-216. 2010
- Bandwidth Estimating Strategy for a 2-Layer Rectangular Suspended Microstrip Antenna. Progress in Electromagnetics Research Symposium. 208-211. 2010
- High-Performance, Low-Cross-Polarization Suspended Patch Array for WLAN Applications. AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society). 413-416. 2009
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S-Band Active Circulator with Reactive Load Tuning for Isolation Recovery
2025
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journal article
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Active Circulator GaN Front-Ends With Integrated Tunable Cancellers for Multifunction Phased Arrays.
IEEE Transactions on Microwave Theory and Techniques.
1917-1929.
2026
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A 10-GHz GaN MMIC Self-Synchronous Rectifier With a GaAs MMIC Tunable Gate Termination.
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS.
1-4.
2026
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Frequency-Tunable 40-44-GHz Butler Matrix.
IEEE Transactions on Microwave Theory and Techniques.
3085-3095.
2025
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Teaching GaAs and GaN MMIC Design: An Education Project Between WIN Semiconductors and UC Boulder.
IEEE Microwave Magazine.
2-22.
2025
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Nonlinear and Load-Pulling Effects in an Octave-Bandwidth Transmit Array.
IEEE Transactions on Microwave Theory and Techniques.
350-359.
2023
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Men and Women Together Make RF/Microwaves Better.
IEEE Microwave Magazine.
137-+.
2022
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Active and Passive Components for Broadband Transmit Phased Arrays: Broadband Transmit Front-End Components.
IEEE Microwave Magazine.
56-74.
2022
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Broadband Small-Aperture High-Gain Ridge Horn Antenna Array Element.
IEEE Antennas and Wireless Propagation Letters.
708-712.
2021
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Analysis of Process Variations in W-Band GaN MMIC PAs Using Nonparametric Statistics.
IEEE Transactions on Microwave Theory and Techniques.
2304-2318.
2021
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Microstrip Ferrite Circulator Design With Control of Magnetization Distribution.
IEEE Transactions on Microwave Theory and Techniques.
1217-1226.
2021
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Octave Bandwidth High-Performance Microstrip-to-Double-Ridge-Waveguide Transition.
IEEE Microwave and Wireless Components Letters.
637-640.
2020
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Active Circulator GaN Front-Ends With Integrated Tunable Cancellers for Multifunction Phased Arrays.
IEEE Transactions on Microwave Theory and Techniques.
1917-1929.
2026