Generation of limited-diffraction electromagnetic pulses at millimeter waves

Walter Fuscaldo (1) , Santi C. Pavone , Guido Valerio (2) , Alessandro Galli (1) , Matteo Albani , Mauro Ettorre (3)

1 DIET - Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni [Roma]
2 L2E - Laboratoire d'Electronique et Electromagnétisme
3 IETR - Institut d'Électronique et des Technologies du numéRique

In this work we analyze the possibility to generate limited-diffraction electromagnetic pulses in the millimeter-wave range. The propagating and focusing features of such pulses are discussed in terms of spot-lengths over both the propagating and the transverse axes. Starting from a new theoretical framework, we show that, even in the ideal case of non dispersive and infinite radiating apertures, some limitations exist for the spatial confinement of a nondiffracting electromagnetic pulse. However, our results show that practical realizations of such pulses are possible when considering a certain defined spatial region and time interval. © 2016 European Association of Antennas and Propagation.

Mots clés: Acoustic waves; Diffraction; Electromagnetic pulse; Millimeter waves; Localized waves; Millimeter-wave range; Nondiffracting; Radiating aperture; Spatial confinement; Spatial regions; Theoretical framework; X waves; Pulse generators

Domaines: Réseaux et télécommunications [cs.NI]; Electronique

Walter Fuscaldo, Santi C. Pavone, Guido Valerio, Alessandro Galli, Matteo Albani, et al.. Generation of limited-diffraction electromagnetic pulses at millimeter waves. 10th European Conference on Antennas and Propagation, EuCAP 2016, Apr 2016, Davos, Switzerland. pp.7481905, ⟨10.1109/EuCAP.2016.7481905⟩. ⟨hal-01368154⟩