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18 December 2014A novel method for fabricating curved frequency selective surface via 3D printing technology
A novel method for fabricating curved frequency selective surfaces with undevelopable curved shape using 3D printing
technology was proposed in this paper. First, FSS composed of Y slotted elements that adapt to 0° ~ 70 ° incidences was
designed. Then, the 3D model of the curved FSS was created in a 3D modeling software. Next, the 3D model was
digitalized into stl format file and then the stl file was inputted into a stereo lithography 3D printer. Next, the prototype
of the curved FSS was fabricated by the 3D printer layer by layer. Finally, a 10 μm thick aluminum film was coated on
the outer surface of the prototype of the curved FSS by a vacuum coater. The transmission performance of the metallised
curved FSS was tested using free space method. It was shown that frequency selection characteristic of the metallised
curved FSS reached the requirements of simulation design. The pass-band was in the Ku-band and the transmission rate
on center frequency was 63% for nose cone incident direction. This method provides a new way to apply the FSS to
arbitrary curved electromagnetic window.
Fengchao Liang andJinsong Gao
"A novel method for fabricating curved frequency selective surface via 3D printing technology", Proc. SPIE 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies, 929513 (18 December 2014); https://doi.org/10.1117/12.2071554
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Fengchao Liang, Jinsong Gao, "A novel method for fabricating curved frequency selective surface via 3D printing technology," Proc. SPIE 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies, 929513 (18 December 2014); https://doi.org/10.1117/12.2071554