Electronic tag
A technology of electronic tags and microstrip lines, applied in the field of radio frequency identification, can solve the problems of low effective utilization of radiated energy, poor anti-interference, and inability to meet the requirements of road vehicles, and achieve the effect of improving the effective utilization
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[0020] Example 1
[0021] figure 2 It is a schematic structural diagram of an embodiment of the electronic label provided by the present invention. like figure 2 As shown, the electronic tag of the embodiment of the present invention may specifically include a chip 1 and an antenna, and the antenna is a directional antenna 21 .
[0022] The directional antenna 21 is a type of antenna that transmits and receives microwaves in one or several specific directions with particularly strong strength, while transmitting and receiving microwaves in other directions is zero or extremely small. The chip 1 receives the microwave signal through the directional antenna 21 , and transmits the electronic code stored in the chip 1 through the directional antenna 21 by virtue of the energy obtained by the induced current.
[0023] In the field of autonomous driving, vehicle radar generally uses 77GHz ranging radar to determine the distance between the vehicle ahead and the vehicle, such as...
Example Embodiment
[0026] Embodiment 2
[0027] Figure 7 It is a schematic structural diagram of another embodiment of the electronic label provided by the present invention. like Figure 7 As shown, the electronic label of the embodiment of the present invention is figure 2 A possible implementation of the electronic tag of the embodiment shown, in figure 2 Technically in the illustrated embodiment, the directional antenna 21 may specifically be various antennas capable of directionally transmitting and receiving microwave signals, such as the array antenna 71 .
[0028] Further, in order to realize directional transmission and reception of microwave signals, the array antenna 71 may specifically include a microstrip line 72 and a plurality of radiation units 73 ( Figure 7 Here, four radiation units 73 are taken as an example), and the plurality of radiation units 73 are respectively connected to the chip 1 through microstrip lines.
[0029] Further, the array antenna 71 may be specifi...
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