Differential filter based on artificial surface plasmon
An artificial surface plasmon and filter technology, applied in the fields of data storage, surface, and communication, to achieve stable performance, wide bandwidth, and indistinct dispersion
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[0017] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0018] see figure 1 and image 3 As shown, the present invention is an insertion / addition filter based on artificial surface plasmons, including a first straight metal grating 1 , a second straight metal grating 2 , a metal grating ring 3 and a metal wire 4 . The first straight metal grating 1 and the second straight metal grating 2 are arranged on both sides of the metal grating ring 3, and one end of the first straight metal grating 1 is arranged with a metal wire 4, ...
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