Directional amplitude backscatter modulation with suppressed Doppler based on rotating resonant loop.

ABSTRACT: The directional amplitude backscatter modulation with suppressed Doppler is demonstrated based on the scattering from a symmetrically rotating resonant loop. The concept is studied theoretically and experimentally with perfectly compatible results. The symmetrical rotation of the scatterer and the effect of radial resonance, as the two crucial points to realize the idea, are highlighted through the comparison between the symmetric and non-symmetric cases, and the results obtained for scatterers with and without radial resonance. The presented backscattering modulation technique provides an amplitude modulating waveform which is uniquely linked to the directional reradiation pattern of the rotating loop scatterer in a definite resonant mode. With the pure directional amplitude modulation (D

SUBMITTER: Azarfar A 

PROVIDER: S-EPMC9767923 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature