An experimental emulation procedure targeting active phased arrays is presented and implemented at Ka-band targeting a 4 × 4 array employing gallium nitride (GaN) power amplifiers (PAs) and patch antennas. The methodology effectively reproduces the load-modulation conditions experienced by the PAs within the array, enabling the collection of realistic data to assess PA load dependency and overall performance prior to array manufacturing. As a relevant application case, a scenario involving a faulty PA element within the array is demonstrated.
Mengozzi, M., Angelotti, A.m., Colangeli, S., Mezzanotte, P., Gibiino, G.p. (2026). Load-Pull Framework for Performance Assessment and Modeling of Microwave Power Amplifiers Under Faulty Array Conditions. In IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2026 - Proceedings (pp.1-3). Institute of Electrical and Electronics Engineers Inc. [10.1109/nemo66765.2026.11622300].
Load-Pull Framework for Performance Assessment and Modeling of Microwave Power Amplifiers Under Faulty Array Conditions
Angelotti, Alberto Maria;Colangeli, Sergio;Gibiino, Gian Piero
2026-01-01
Abstract
An experimental emulation procedure targeting active phased arrays is presented and implemented at Ka-band targeting a 4 × 4 array employing gallium nitride (GaN) power amplifiers (PAs) and patch antennas. The methodology effectively reproduces the load-modulation conditions experienced by the PAs within the array, enabling the collection of realistic data to assess PA load dependency and overall performance prior to array manufacturing. As a relevant application case, a scenario involving a faulty PA element within the array is demonstrated.| File | Dimensione | Formato | |
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