FREQUENCY SELECTIVE SURFACE AND SPATIAL FILTERING METHOD

Provided in the embodiments of the present application are a frequency selective surface and a spatial filtering method. A frequency selective surface unit comprises: a first surface consisting of a plurality of first metal strips which are staggered with each other; a second surface consisting of a plurality of second metal strips, each of said second metal strips being provided with a second inter-band gap, and metal strips on two sides of each second inter-band gap being connected by means of a metal strip line, so as to form in an H frequency band a parallel resonance LC circuit; and a support plate, the first surface and the second surface being fixed on a same surface of the support plate or on front and back surfaces of the support plate. Les modes de réalisation de la présente invention concernent une surface sélective en fréquence et un procédé de filtrage spatial. Une unité de surface sélective en fréquence comprend : une première surface constituée d'une pluralité de premières bandes métalliques qu