Science Daily April 11, 2023 To achieve high reconfigurability in integrated microwave photonic filters (IMPFs) previous works adopt complicated system structures and modulation formats, which put great pressure on power consumption and controlment, and, therefore, impeded the massive deployment of IMPF. Researchers in China proposed a streamlined architecture for a wideband and highly reconfigurable IMPF on the silicon photonics platform. For various practical filter responses, to avoid complex auxiliary devices and bias drift problems, a phase-modulated flexible sideband cancellation method was employed based on the intensity-consistent single-stage-adjustable cascaded-microring. The IMPF exhibited an operation band extending to millimeter-wave and other extraordinary […]
Tag Archives: 6G communication
Magnetic superstructures as a promising material for 6G technology
Phys.org June 20, 2022 A chiral spin soliton lattice (CSL) exhibits reconfigurability in periodicity over a macroscopic length scale. Such coherent and tunable characteristics of the CSL lead to an emergence of elementary excitation of the CSL and bring a controllability of the dispersion relation of the CSL phonon. An international team of researchers (Japan, Canada, Russia, Germany) used a broadband microwave spectroscopy technique, and directly found that higher-order magnetic resonance modes appear in the CSL phase of a chiral helimagnet CrNb3S6, which is ascribed to the CSL phonon response. The resonance frequency of the CSL phonon can be tuned […]