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Nelson J. G. Fonseca
Nelson J. G. Fonseca
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Circular polarization wide-angle beam steering at Ka-Band by in-plane translation of a plate lens antenna
EB Lima, SA Matos, JR Costa, CA Fernandes, NJG Fonseca
IEEE Transactions on Antennas and Propagation 63 (12), 5443-5455, 2015
1372015
Design and implementation of two-layer compact wideband Butler matrices in SIW technology for Ku-band applications
AAM Ali, NJG Fonseca, F Coccetti, H Aubert
IEEE Transactions on Antennas and Propagation 59 (2), 503-512, 2011
1032011
Dual-Band Dual-Linear-to-Circular Polarization Converter in Transmission Mode Application to-Band Satellite Communications
P Naseri, SA Matos, JR Costa, CA Fernandes, NJG Fonseca
IEEE Transactions on Antennas and Propagation 66 (12), 7128-7137, 2018
1022018
Printed S-band 4× 4 Nolen matrix for multiple beam antenna applications
NJG Fonseca
IEEE transactions on antennas and propagation 57 (6), 1673-1678, 2009
992009
High Gain Dual-Band Beam-Steering Transmit Array for Satcom Terminals at Ka-Band
SA Matos, EB Lima, JS Silva, JR Costa, CA Fernandes, NJG Fonseca, ...
IEEE Transactions on Antennas and Propagation 65 (7), 3528-3539, 2017
952017
Planar -Band 44 Nolen Matrix in SIW Technology
T Djerafi, NJG Fonseca, K Wu
IEEE transactions on microwave theory and techniques 58 (2), 259-266, 2010
942010
Compact Multibeam Fully Metallic Geodesic Luneburg Lens Antenna Based on Non-Euclidean Transformation Optics
Q Liao, NJG Fonseca, O Quevedo-Teruel
IEEE Transactions on Antennas and Propagation 66 (12), 7383-7388, 2018
882018
Broadband Substrate Integrated Waveguide 44 Nolen Matrix Based on Coupler Delay Compensation
T Djerafi, NJG Fonseca, K Wu
IEEE transactions on microwave theory and techniques 59 (7), 1740-1745, 2011
742011
High-Performance Electrically Thin Dual-Band Polarizing Reflective Surface for Broadband Satellite Applications
NJG Fonseca, C Mangenot
IEEE Transactions on Antennas and Propagation 64 (2), 640-649, 2016
512016
Multibeam antennas for very high throughput satellites in Europe: Technologies and trends
B Palacin, NJG Fonseca, M Romier, R Contreres, JC Angevain, G Toso, ...
2017 11th European Conference on Antennas and Propagation (EUCAP), 2413-2417, 2017
502017
Design and implementation of a planar 4x4 Butler matrix in SIW technology for wide band high power applications
T Djerafi, NJG Fonseca, K Wu
Progress In Electromagnetics Research B 35, 29-51, 2011
502011
Equivalent Planar Lens Ray-Tracing Model to Design Modulated Geodesic Lenses Using Non-Euclidean Transformation Optics
NJG Fonseca, Q Liao, O Quevedo-Teruel
IEEE Transactions on Antennas and Propagation 68 (5), 3410-3422, 2020
482020
On the design of a compact neural network-based DOA estimation system
NJG Fonseca, M Coudyser, JJ Laurin, JJ Brault
IEEE Transactions on Antennas and Propagation 58 (2), 357-366, 2010
452010
Multi-beam reflector antenna system combining beam hopping and size reduction of effectively used spots
NJG Fonseca, J Sombrin
IEEE Antennas and Propagation Magazine 54 (2), 88-99, 2012
432012
C-Band Multiple Beam Antennas for Communication Satellites
JM Montero, AM Ocampo, NJG Fonseca
IEEE Transactions on Antennas and Propagation 63 (4), 1263-1275, 2015
422015
Holey glide-symmetric filters for 5G at millimeter-wave frequencies
A Monje-Real, NJG Fonseca, O Zetterstrom, E Pucci, O Quevedo-Teruel
IEEE Microwave and Wireless Components Letters 30 (1), 31-34, 2019
392019
Doubly curved reflector design for hybrid array fed reflector antennas
NJG Fonseca, E Girard, H Legay
IEEE Transactions on Antennas and Propagation 66 (4), 2079-2083, 2018
372018
Compact printed quadrifilar helical antenna with iso-flux-shaped pattern and high cross-polarization discrimination
S Hebib, NJG Fonseca, H Aubert
IEEE Antennas and Wireless Propagation Letters 10, 635-638, 2011
372011
Analytical Model and Study of Continuous Parallel Plate Waveguide Lens-like Multiple-Beam Antennas
F Doucet, NJG Fonseca, E Girard, H Legay, R Sauleau
IEEE Transactions on Antennas and Propagation 66 (9), 4426-4436, 2018
362018
Low-Profile Compact Dual-Band Unit Cell for Polarizing Surfaces Operating in Orthogonal Polarizations
W Tang, S Mercader-Pellicer, G Goussetis, H Legay, NJG Fonseca
IEEE Transactions on Antennas and Propagation 65 (3), 1472-1477, 2017
362017
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