Figure 2
From: Directional amplitude backscatter modulation with suppressed Doppler based on rotating resonant loop
(a) Rotating rectangular loop in the monostatic scattering configuration. (b) Directional amplitude modulation induced on the backscattered wave by rotating loop. (c) The IQ constellation diagram of the demodulated received signal. The linear modulation path crosses the origin, and is limited in between the minimum and maximum of the reradiation pattern corresponding to the positions of the loop shown in (b).
