# US 2013/0278268 A1 · Shielding for an Electronic Circuit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0278268 A1 - Document ID: US20130278268A1 - Status: Published application - Kind: A1 - Application number: 13/866,795 - Filed: 2013-04-19 - Published: 2013-10-24 - Earliest claimed: 2012-04-20 - Assignees: Siemens Aktiengesellschaft - Inventors: Sebastian Martius; Oliver Schwender; Benjamin Sewiolo - Web page: https://patentgrep.com/patent/US20130278268A1 ## CPC - G01R 33/42: Screening - G01R 33/422: of the radio frequency field - H05K 9/0086: {comprising a single discontinuous metallic layer on an electrically insulating supporting structure, e.g. metal grid, perforated metal foil, film, aggregated flakes, sintering} - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract Shielding for an electronic circuit includes at least one substrate. A metal structure is disposed on at least one side of the at least one substrate. The metal structure includes a number of non-contiguous part areas. Adjacent part areas that are disposed on a same side of the substrate are spaced apart from one another by a boundary line running in a serpentine shape. ## Claims ### Claim 1 A shielding for an electronic circuit, the shielding comprising: a substrate; and a metal structure disposed on a side of the substrate, the metal structure comprising a plurality of non-contiguous part areas, wherein adjacent part areas of the plurality of non-contiguous part areas that are disposed on a same side of the substrate are spaced apart from one another via a boundary line running in a serpentine shape. ### Claim 2 (depends on 1) The shielding as claimed in claim 1, wherein the substrate and the metal surface are used with an electronic circuit in a magnetic resonance tomography (MRT) system. ### Claim 3 (depends on 2) The shielding as claimed in claim 2, wherein the electronic circuit is linked to a magnetic resonance receive antenna of the MRT system located outside the shielding. ### Claim 4 (depends on 1) The shielding as claimed in claim 1, wherein the substrate comprises a high-frequency-proof substrate, a ceramic, a polymer, a glass fiber structure, prepreg, a dielectric non-conductive material, or a combination thereof. ### Claim 5 (depends on 1) The shielding as claimed in claim 1, wherein the metal structure comprises non-magnetic material. ### Claim 6 (depends on 1) The shielding as claimed in claim 1, wherein the metal structure comprises gold, silver, copper, aluminum, or a combination thereof. ### Claim 7 (depends on 1) The shielding as claimed in claim 1, wherein the boundary line running in the serpentine shape runs at right angles, in curves, or at right angles and in curves. ### Claim 8 (depends on 1) The shielding as claimed in claim 1, wherein the metal structure forms a pattern of a plurality of identically-structured surface elements that are configured and disposed next to one another such that the plurality of non-contiguous part areas are formed by the plurality of identically-structured surface elements. ### Claim 9 (depends on 8) The shielding as claimed in claim 8, wherein a structured surface element of the plurality of identically-structured surface elements is rectangular. ### Claim 10 (depends on 9) The shielding as claimed in claim 9, wherein the structured surface element is square. ### Claim 11 (depends on 8) The shielding as claimed in claim 8, wherein, at respective edges of a structured surface element of the plurality of identically-structured surface elements, one or more sections of the boundary line run into the structured surface element, and wherein a respective section of the boundary line extends from a position on the corresponding edge to another position of the corresponding edge. ### Claim 12 (depends on 11) The shielding as claimed in claim 11, wherein a finger extending into the corresponding edge is formed by a respective section of the boundary line, and wherein the fingers at a same edge are of different lengths. ### Claim 13 (depends on 1) The shielding as claimed in claim 1, wherein the metal structure is a first metal structure, wherein the shielding comprises a plurality of metal structures, the plurality of metal structures comprising the first metal structure and a second metal structure, and wherein the first metal structure is disposed on a first side of the substrate, and the second metal structure is disposed on a second side of the substrate, the side being the first side or the second side. ### Claim 14 (depends on 1) The shielding as claimed in claim 1, further comprising a plurality of substrates lying one above the other, the plurality of substrates comprising the substrate, wherein the metal structure is disposed between adjacent sides of a pair of adjacent substrates of the plurality of substrates, wherein the metal structure is disposed on an upper side of a topmost substrate of the plurality of substrates, on a lower side of a bottommost substrate of the plurality of substrates, or on the upper side of the topmost substrate and on the lower side of the bottommost substrate so that a capacitive coupling is produced by a substrate of the plurality of substrates in an area of overlapping part areas. ### Claim 15 (depends on 13) The shielding as claimed in claim 13, wherein two adjacent metal structures of the plurality of metal structures that are separated from one another via a substrate are configured such that the part areas of the adjacent metal structures, when viewed looking down onto a plane of the substrate from above, are offset in relation to one another. ### Claim 16 (depends on 2) The shielding as claimed in claim 2, wherein the metal structure is connected to a ground of the electronic circuit to be shielded. ### Claim 17 (depends on 2) The shielding as claimed in claim 2, wherein the shielding is disposed such that the shielding at least partly covers the electronic circuit. ### Claim 18 An electronic circuit comprising: a shielding comprising: a substrate, wherein a metal structure is disposed on at least one side of the substrate, the metal structure comprising a plurality of non-contiguous part areas, wherein adjacent part areas of the plurality of non-contiguous part areas that are disposed on a same side of the substrate are spaced apart from one another via a boundary line running in a serpentine shape. ### Claim 19 (depends on 18) The electronic circuit as claimed in claim 18, wherein the substrate comprises a high-frequency-proof substrate, a ceramic, a polymer, a glass fiber structure, prepreg, a dielectric non-conductive material, or a combination thereof. ### Claim 20 A magnetic resonance tomography (MRT) system comprising: an electronic circuit comprising: a shielding comprising: a substrate, wherein a metal structure is disposed on at least one side of the substrate, the metal structure comprising a plurality of non-contiguous part areas, wherein adjacent part areas of the plurality of non-contiguous part areas that are disposed on a same side of the substrate are spaced apart from one another via a boundary line running in a serpentine shape.