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Export Reference (APA) 
A F Vaquero, Matos, S., M. Arrebola, Felício, J., M. R. Pino & Fernandes, C. A. (2025). Multi-focal transmit-array designs to boost the scanning performance of small phased arrays. 43rd Antenna Workshop Antenna Technologies.
Export Reference (IEEE) 
A. Vaquero et al.,  "Multi-focal transmit-array designs to boost the scanning performance of small phased arrays", in 43rd Antenna Workshop Antenna Technologies, 2025
Export BibTeX 
@misc{vaquero2025_1770116975544,
	author = "A F Vaquero and Matos, S. and M. Arrebola and Felício, J. and M. R. Pino and Fernandes, C. A.",
	title = "Multi-focal transmit-array designs to boost the scanning performance of small phased arrays",
	year = "2025"
}
Export RIS 
TY  - CPAPER
TI  - Multi-focal transmit-array designs to boost the scanning performance of small phased arrays
T2  - 43rd Antenna Workshop Antenna Technologies
AU  - A F Vaquero
AU  - Matos, S.
AU  - M. Arrebola
AU  - Felício, J.
AU  - M. R. Pino
AU  - Fernandes, C. A.
PY  - 2025
AB  - This work proposes a hybrid Phased array (PA) – transmit-array (TA) architecture that attains agile, fully electronic beam steering while preserving the high directivity of low-profile TA terminals. The core contribution is a two-stage synthesis, firstly, adapting the multi-focal TA design to account for the PA illumination, and second, proposing a regularized inversion that computes complex PA excitations which best reproduce the target quasi-Gaussian aperture illumination used in the TA design. The combined design reduces scanning aberrations and improves pointing control compared to unoptimized feeding, even when using a compact 10 × 10 PA feeder. Numerical experiments validate the approach by comparing PA far-field, and the hybrid PA-TA architecture, resulting in promising radiation patterns across a wide scanning range.
ER  -