Waveform selectivity at the same frequency.
Waveform selectivity at the same frequency.
复制标题
波形选择性以相同的频率。
DOI:
10.1038/srep09639
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发表时间:
2015-04-13
影响因子:
4.6
通讯作者:
Sievenpiper DF
中科院分区:
文献类型:
--
作者:
Wakatsuchi H;Anzai D;Rushton JJ;Gao F;Kim S;Sievenpiper DF
Electromagnetic properties depend on the composition of materials, i.e. either angstrom scales of molecules or, for metamaterials, subwavelength periodic structures. Each material behaves differently in accordance with the frequency of an incoming electromagnetic wave due to the frequency dispersion or the resonance of the periodic structures. This indicates that if the frequency is fixed, the material always responds in the same manner unless it has nonlinearity. However, such nonlinearity is controlled by the magnitude of the incoming wave or other bias. Therefore, it is difficult to distinguish different incoming waves at the same frequency. Here we present a new concept of circuit-based metasurfaces to selectively absorb or transmit specific types of waveforms even at the same frequency. The metasurfaces, integrated with schottky diodes as well as either capacitors or inductors, selectively absorb short or long pulses, respectively. The two types of circuit elements are then combined to absorb or transmit specific waveforms in between. This waveform selectivity gives us another degree of freedom to control electromagnetic waves in various fields including wireless communications, as our simulation reveals that the metasurfaces are capable of varying bit error rates in response to different waveforms.
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影响因子:
56.9
作者:
Fang, N;Lee, H;Zhang, X
通讯作者:
Zhang, X
影响因子:
8.6
作者:
Wakatsuchi, Hiroki;Kim, Sanghoon;Sievenpiper, Daniel F.
通讯作者:
Sievenpiper, Daniel F.
影响因子:
8.6
作者:
Ding, Yiqun;Liu, Zhengyou;Shi, Jing
通讯作者:
Shi, Jing
影响因子:
2.4
作者:
Alù, A;Engheta, N
通讯作者:
Engheta, N
影响因子:
4.3
作者:
Sievenpiper, D;Zhang, LJ;Yablonovitch, E
通讯作者:
Yablonovitch, E