Serrodyne frequency translation using time-modulated metasurfaces
Serrodyne frequency translation using time-modulated metasurfaces
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DOI：
10.1109/apusncursinrsm.2019.8888738
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发表时间：
2019-07
期刊：
影响因子：
--
通讯作者：
Zhan Wu;A. Grbic
中科院分区：
文献类型：
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作者：
Zhan Wu;A. Grbic
透射和反射的时间调制超颖表面，作为锯齿波频率转换器的功能，在X波段的频率。两个超颖表面都提供覆盖360°的电可调透射/反射相位。具有优化波形的偏置信号用于调制每个超表面，从而允许类似多普勒的频率转换。超颖表面可以级联在一起以实现无磁非互易器件。
Transmissive and reflective time-modulated metasurfaces, that function as serrodyne frequency translators, are reported at X-band frequencies. Both metasurfaces provide electrically tunable transmission/reflection phase that covers 360°. Bias signals with optimized waveforms are used to modulate each metasurface, allowing Doppler-like frequency translation. The metasurfaces can be cascaded together to achieve magnetless nonreciprocal devices.