Patent ID: 11937380
Assignee: NANO DIMENSION TECHNOLOGIES, LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A computerized method of fabricating an electromagnetic band gap (EBG) element comprising:
a. providing an ink jet printing system comprising:
i. a first print head, sized and configured to dispense a dielectric ink composition;
ii. a second print head sized and configured to dispense a conductive ink composition;
iii. a conveyor, operably coupled to the first, and the second print heads configured to convey a substrate to each of the first, and the second print heads; and
iv. a computer aided manufacturing (“CAM”) having a central processing module (CPM), in communication with conveyor, and each of the first, and second print heads, the CPM further comprising: at least one processor in communication with a non-transitory computer readable storage medium storing thereon instructions that, when executed by the at least one processor cause the CPM to control the ink-jet printing system, by carrying out steps that comprise: receiving a 3D visualization file representing the EBG element; and generating a file library having a plurality of files, each file representing a substantially 2D layer for printing the EBG element, and a metafile representing at least the printing order of each of the substantially 2D layers for printing;

b. receiving the 3D visualization file representing the EBG element;
c. generating the library of files representing the substantially 2D layer for printing;
d. providing the dielectric ink composition, and the conductive ink composition;
e. obtaining from the library a first file representing a first printing layer of the EBG element, the first file comprising printing instructions for a pattern representative of at least one of: the dielectric ink, and the conductive ink;
f. using the first print head, forming a pattern representative of the dielectric ink in the first printing layer;
g. curing the pattern corresponding to the dielectric ink in the first layer;
h. using the second print head, forming a pattern representative of the conductive ink in the first printing layer;
i. sintering the pattern corresponding to the conductive ink in the first layer;
j. obtaining from the library a subsequent file representative of a subsequent layer for printing the EBG element; the subsequent file comprising printing instructions for a pattern representative of at least one of: the dielectric ink, and the conductive ink in the subsequent layer;
k. repeating the steps of: using the first print head, forming the pattern representative of the dielectric ink in the subsequent layer, to the step of sintering the pattern representative of the conductive ink in the subsequent layer, wherein upon curing and/or sintering a final layer, the EBG element comprises:
i. an electrically conducting ground plane having an apical surface and a basal surface
ii. a dielectric medium having a basal surface and an apical surface disposed over the electrically conducting ground plane;
iii. a plurality of polygonal conducting elements each having an apical surface and a basal surface disposed adjacently to, and distanced from each other on the apical surface of the dielectric medium, each polygonal conducting element further comprises at least two opposing facet walls extending basally, wherein each conducting element is coupled to the electrically conducting ground plane by a blind via; and
iv. a plurality of gapping polygonal structures each associated with a polygonal conducting element and having an apical surface, the gapping polygonal structure extending apically from the apical surface of the electrically conducting ground plane, wherein each gapping polygonal structures defining a concentric bore wherein the blind via is disposed coaxial with the bore; and

l. removing the substrate.