Figure 4

(a) Photo of the experimental setup with our tag in an anechoic chamber. (b) The received signal power as a function of the tag’s orientation in space (marks are in the inset to panel (a)). (c) Photo of the experimental setup with Impinj H47 tag in an anechoic chamber. (d) Angular diagram of the received signal power in xy, xz and yz coordinate planes.