Dual-Beam Steerable TMAs Combining AM and PM Switched Time-Modulation
Use este enlace para citar
http://hdl.handle.net/2183/30819
A non ser que se indique outra cousa, a licenza do ítem descríbese como Atribución 4.0 Internacional
Coleccións
- GI-GTEC - Artigos [190]
Metadatos
Mostrar o rexistro completo do ítemTítulo
Dual-Beam Steerable TMAs Combining AM and PM Switched Time-ModulationData
2022Cita bibliográfica
Maneiro-Catoira, R.; Brégains, J.; García-Naya, J.A.; Castedo, L. Dual-Beam Steerable TMAs Combining AM and PM Switched Time-Modulation. Sensors 2022, 22, 1399. https://doi.org/ 10.3390/s22041399
Resumo
[Abstract] Wireless sensor networks (WSN) are increasingly requiring directional antennas that not only provide higher capacity, security, transmission range or robustness against interference, but also contribute with smart antenna capabilities such as adaptive beamforming or multi beam radiation patterns. Standard phased arrays provide these features, but employing feeding networks based on digitally controlled variable phase shifters (VPSs) which have the disadvantage of high cost and limited angular resolution. Instead, time-modulated arrays (TMAs) use switched feeding networks governed by digital periodic sequences which allow harmonic patterns to be radiated and endows (TMAs) with attractive multifunctional capabilities. In this paper, we analyze and properly combine (TMA) switched feeding networks capable of time-modulating an antenna array with discretized amplitude modulation (AM) and phase modulation (PM) waveforms. The advantages of the proposed innovative dual-beam (TMA) with respect to the competing architectures are, on the one hand, its power efficiency and beamsteering (BS) phase sensitivity and, on the other, its hardware simplicity, which allows for an excellent relative cost advantage.
Palabras chave
Time-modulated arrays
Wireless sensor networks
Beam steering
Multibeam
Wireless sensor networks
Beam steering
Multibeam
Versión do editor
Dereitos
Atribución 4.0 Internacional