A control method applied to intelligent metasurface and controller of intelligent metasurface
A control method and metasurface technology, applied in the direction of reducing energy consumption, advanced technology, antennas, etc., can solve a large number of problems, achieve the effects of reducing frequency, improving stability, and saving costs
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Embodiment 1
[0096] like Figure 4 As shown, this embodiment uses a row scanning method, and each RIS unit uses a transistor T1 to control the on-off of the RIS. The basic structure of a RIS unit and its analog on-off circuit is as follows Figure 5 No.
[0097] In this embodiment, the intelligent metasurface has a total of n rows and m columns of RIS units. The controller sends a scan signal to the scan line driver circuit, and the scan line driver circuit selects the G1, G2, G3, . . . , Gn-1, Gn A certain row of RIS units, then, the controller sends the control signal of this row of RIS to the signal line driver circuit, and the signal line driver circuit simultaneously loads the control voltage on the first S1, S2, S3, S4,..., Sm-1, Sm On each RIS unit, the voltage changes and the amplitude and phase change. The transistors of the RIS cells of the non-gated row are turned off, and the control voltage is held by the holding capacitor C1.
[0098] The whole system works as follows:
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Embodiment 2
[0103] like Figure 7 As shown, this embodiment uses a column scan method. At this time, each row is connected to the signal line driver circuit, and each column is connected to the scan line driver circuit. The smart metasurface shown is still n rows and m columns, and the connection method between the on-off circuit, the scan line and the signal line driver circuit is simulated. There is no change, that is: the gate of the transistor is connected to the scan line driver circuit, the source is connected to the signal line driver circuit, the drain is connected to one end of the RIS unit and one end of the capacitor, and the other end of the RIS unit and the other end of the capacitor ground.
[0104] Embodiments of the present invention provide a controller for an intelligent metasurface, including: a computer-readable storage medium and a processor;
[0105] the computer-readable storage medium for storing executable instructions;
[0106] The processor is configured to r...
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