research overview
- Researcher in the field of RF, microwave and millimeter wave circuits, components and antennas
- Contact Info
Lasser, Gregor Asst Research Professor
Positions
- Asst Research Professor, Electrical, Computer and Energy Engineering (ECEE)
Research Areas
- Antennae
- Antennae and Wave Guides
- Applied Electronics
- Circuits and Systems
- Communication Systems
- Electrical Engineering/Electronics
- Electromagnetic Fields
- Electromagnetic Propagation
- Integrated Circuits
- Microelectronics
- Microwave Theory
- Millimeter Waves
- Monolithic Circuits
- Novel Device Concepts
- Radar
- Satellite Communication
- Solid State Electronics
Research
keywords
- radio frequency, power amplifiers, antennas, supply modulation, envelope tracking, gan, efficiency
Publications
selected publications
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chapter
- Innovations in Antenna Systems for Communications. 383-421. 2016
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conference proceeding
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A 4-W K-Band 40% PAE Three-Stage MMIC Power Amplifier
2018
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Independent Dynamic Gate Bias for a Two-Stage Amplifier for Amplitude and Phase Linearization
2018
- An Efficient Linearized Octave-Bandwidth Power Amplifier for Carrier Aggregation. IEEE Mtt S International Microwave Symposium Digest. 473-476. 2018
- Enabling Passive Components for High-Power Wideband Millimiter Wave Repeater Applications 2018
- Broadband supply modulation for RF transmitter efficiency enhancement 2018
- Improvement of MAW Spiral Measurements by Filtering Spherical Modes in the Far Field. 204-207. 2017
- Efficiency Enhancement and Linearization of GaN PAs using Reduced-Bandwidth Supply Modulation. 456-459. 2017
- 3-Arm Spiral Antennas for Direction Finding Applications. AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society). 1543-1544. 2017
- A Spiral Antenna for Amplitude-Only Direction Finding. AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society). 927-928. 2017
- Bandwidth-Reduced Supply Modulation of a High-Efficiency X-band GaN MMIC PA for Multiple Wideband Signals. IEEE Mtt S International Microwave Symposium Digest. 1850-1853. 2017
- Discrete-Level Envelope Tracking for Broadband Noise-Like Signals. IEEE Mtt S International Microwave Symposium Digest. 1942-1945. 2017
- Gate Control of a Two-Stage GaN MMIC Amplifier for Amplitude and Phase Linearization 2017
- A Wide-Band Spiral Based Amplitude-Only Azimuth Direction Finding System. AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society). 1823-1824. 2016
- Tuning an Electrically Small On-The-Move HF Half-Loop Antenna. Proceedings of the European Conference on Antennas and Propagation. European Conference on Antennas and Propagation. 2016
- Tuning an Electrically Small On-The-Move HF Half-Loop Antenna. Proceedings of the European Conference on Antennas and Propagation. European Conference on Antennas and Propagation. 2016
- Dual-Band, Low-Frequency Artificial Magnetic Conductor using Lumped Components. 175-177. 2015
- Empirical Path Loss Model Fit from Measurements from a Vehicle-to-Infrastructure Network in Munich at 5.9 GHz. 181-185. 2015
- Effect of Carbon-Fiber Composites as Ground Plane Material on Antenna Performance. 711-714. 2014
- Near Field Scans of Tyre mounted Dipoles using a separate Phase Reference Antenna. 612-615. 2014
- Channel Model for Tyre Pressure Monitoring Systems (TPMS) 2010
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Broadband Suppression Properties of Active Leaking Carrier Cancellers.
208-212.
2009
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A 4-W K-Band 40% PAE Three-Stage MMIC Power Amplifier
2018
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journal article
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A Three-Stage 18.5-24-GHz GaN-on-SiC 4 W 40% Efficient MMIC PA.
IEEE Journal of Solid-State Circuits.
2402-2410.
2019
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Metal-Embedded Chip Assembly Processing for Enhanced RF Circuit Performance.
IEEE Transactions on Microwave Theory and Techniques.
3537-3546.
2019
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Dynamic Dual-Gate Bias Modulation for Linearization of a High-Efficiency Multistage PA.
IEEE Transactions on Microwave Theory and Techniques.
2483-2494.
2019
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Efficient Multisignal 2-4-GHz Power Amplifier With Power Tracking.
IEEE Transactions on Microwave Theory and Techniques.
5652-5663.
2018
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Performance Characterization of Four-Arm MAW Spiral Antennas for Digital Direction-of-Arrival Sensing.
IEEE Transactions on Antennas and Propagation.
2761-2769.
2018
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Wideband Antenna Systems for Millimeter-Wave Amplitude-Only Direction Finding.
IEEE Transactions on Antennas and Propagation.
3122-3129.
2018
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Wide-Band High-Frequency Antennas for Military Vehicles Designing and testing low-profile half-loop, inverted-L, and umbrella NVIS antennas.
IEEE Antennas and Propagation Magazine.
64-74.
2016
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Low-Profile Switched-Beam Antenna Backed by an Artificial Magnetic Conductor for Efficient Close-to-Metal Operation.
IEEE Transactions on Antennas and Propagation.
1307-1316.
2016
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Detectivity enhancement in quantum well infrared photodetectors utilizing a photonic crystal slab resonator.
Optics Express.
5622-5628.
2012
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A Three-Stage 18.5-24-GHz GaN-on-SiC 4 W 40% Efficient MMIC PA.
IEEE Journal of Solid-State Circuits.
2402-2410.
2019
Teaching
courses taught
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ECEN 5014 - Special Topics
Primary Instructor - Spring 2019 / Spring 2020
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours.
Background
education and training
- Ph.D., Technical Univ of Vienna (Austria) 2014
- M.S., Technical Univ of Vienna (Austria) 2008
- B.S., Technical Univ of Vienna (Austria) 2007