Active biasing device and method for programmable digital metamaterial
A bias device and metamaterial technology, which is applied in the field of electromagnetic metamaterials, can solve problems such as high cost and complex driving, and achieve the effects of reducing quantity, reducing hardware design complexity, and precise device impedance state regulation
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Embodiment 1
[0046] Figure 11 10 driving pulse waveforms including two scanning periods are given, the starting levels of the driving pulses are all low level (generally 0V), and pulse 41-pulse 45 correspond to row scan bias line 31-row scan bias Line 35, pulse 46-pulse 50 correspond to column scanning bias line 40-column scanning bias line 36 respectively, and the output results of the coding state of the active bias device for realizing programmable digital metamaterials are shown in Table 1.
[0047] Coding state output table in Table 1 embodiment 1
[0048]
[0049] Each scan cycle includes five pulse intervals. In the first pulse interval, only pulse 46 is high level (generally greater than 0.7V) in the column scan pulses, so other column diodes are all in cut-off state. At this time, pulse 42, Pulse 44 is low level, so the diodes at the second row and the fourth row position on the first column are gated, and the remaining diodes are turned off. Similarly, in the second pulse in...
Embodiment 2
[0051] Figure 12 10 driving pulse waveforms including two scan periods are given, pulse 51-pulse 55 correspond to the row scan bias line 31-row scan bias line 35, and pulse 56-pulse 60 correspond to the column scan bias line The 40-column scanning bias line 36 realizes the coding state output results of the active bias device for programmable digital metamaterials as shown in Table 2:
[0052] Coding state output table in Table 2 embodiment 2
[0053]
[0054] In the first pulse interval, only pulse 56 is high level in the column scanning pulse, so the other column diodes are all in cut-off state. At this time, pulse 51-pulse 55 are all high level, so all diodes on the first column is turned off, similarly in the second pulse interval, all the diodes on the second column are strobed, and the state of the diodes in the remaining pulse intervals is analogous.
Embodiment 3
[0056] Figure 13 10 driving pulse waveforms including two scan periods are given, pulse 61-pulse 65 correspond to the row scan bias line 31-row scan bias line 35, and pulse 66-pulse 70 correspond to the column scan bias line The 40-column scanning bias line 36, and the output results of the coding status of the active bias device for the programmable digital metamaterial are shown in Table 3.
[0057] Coding state output table in the embodiment 3 of table 3
[0058]
[0059] In the first pulse interval, only pulse 66 is high level in the column scanning pulse, so the other column diodes are all in cut-off state. At this time, pulse 42 and pulse 44 are low level, so the second row, The diode at the position of the fourth row is gated, and the remaining diodes are turned off. Similarly, in the second pulse interval, the diodes at the second row and the fourth row of the second column are turned off, and the remaining diodes are selected. On, the state of the diode in the r...
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