# US 9,520,648 B2 · Polygon near field communication antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,648 B2 - Document ID: US9520648B2 - Status: Granted - Kind: B2 - Application number: 14/727,871 - Filed: 2015-06-02 - Published: 2016-01-28 - Granted: 2016-12-13 - Earliest claimed: 2014-07-23 - Assignees: Mediatek Inc. - Applicants: Mediatek Inc. - Inventors: Shun-Te Wu - Web page: https://patentgrep.com/patent/US9520648B2 ## CPC - H01Q 7/06: with core of ferromagnetic material (H01Q7/02 takes precedence) - H04B 5/26: using coils - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H04B: TRANSMISSION ## Abstract A polygon Near Field Communication (NFC) antenna comprises: a first radiation part, a second radiation part, a third radiation part, and at least an antenna feed point. The first radiation part is arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a first pattern. The second radiation part is arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a second pattern. The third radiation part is coupled between the first radiation part and the second radiation part. ## Claims ### Claim 1 A polygon Near Field Communication (NFC) antenna, comprising: a first radiation part, arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a first pattern; a second radiation part, arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a second pattern; a third radiation part, coupled between the first radiation part and the second radiation part; and at least an antenna feed point, coupled to either the first, the second, or the third radiation part. ### Claim 2 (depends on 1) The polygon NFC antenna of claim 1, further comprising: a fourth radiation part, arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a fourth pattern; and a fifth radiation part, coupled between at least two of the third radiation part, the fourth radiation part, and second radiation part. ### Claim 3 (depends on 2) The polygon NFC antenna of claim 2, further comprising: a sixth radiation part, arranged to have a single turn trace with single layer or multi-layer, a single turn wire routing with single layer or multi-layer, a multi-turns trace with single layer or multi-layer, or a multi-turns wire routing with single layer or multi-layer, and formed to have a sixth pattern; and a seventh radiation part, coupled between at least two of the third radiation part, the sixth radiation part, and first radiation part. ### Claim 4 (depends on 3) The polygon NFC antenna of claim 3, wherein the sixth pattern is a square, a rectangle, an ellipse, or a circle. ### Claim 5 (depends on 3) The polygon NFC antenna of claim 3, wherein the seventh radiation part is arranged to have a parallel trace with single layer or multi-layer, a parallel wire routing with single layer or multi-layer, a cross trace with single layer or multi-layer, a cross wire routing with single layer or multi-layer, a twisted trace with single layer or multi-layer, or a twisted wire routing with single layer or multi-layer. ### Claim 6 (depends on 3) The polygon NFC antenna of claim 3, wherein the polygon NFC antenna is applied to a portable electronic device, and the first radiation part, the second radiation part, the third radiation part, the fourth radiation part, the fifth radiation part, the sixth radiation part, and the seventh radiation part are positioned on different surfaces of the portable electronic device for multi-position detection in NFC. ### Claim 7 (depends on 3) The polygon NFC antenna of claim 3, further comprising: a first ferrite sheet, formed overlap the first radiation part; a second ferrite sheet, formed overlap the second radiation part; a fourth ferrite sheet, formed overlap the fourth radiation part; and a sixth ferrite sheet, formed overlap the sixth radiation part. ### Claim 8 (depends on 7) The polygon NFC antenna of claim 7, further comprising: a third ferrite sheet, formed overlap the third radiation part; a fifth ferrite sheet, formed overlap the fifth radiation part; and a seventh ferrite sheet, formed overlap the seventh radiation part. ### Claim 9 (depends on 8) The polygon NFC antenna of claim 8, wherein the first ferrite sheet, the second ferrite sheet, the third ferrite sheet, the fourth ferrite sheet, the fifth ferrite sheet, the sixth ferrite sheet, and the seventh ferrite sheet are integrated into a single ferrite sheet. ### Claim 10 (depends on 2) The polygon NFC antenna of claim 2, wherein the fourth pattern is a square, a rectangle, an ellipse, or a circle. ### Claim 11 (depends on 2) The polygon NFC antenna of claim 2, wherein the fifth radiation part is arranged to have a parallel trace with single layer or multi-layer, a parallel wire routing with single layer or multi-layer, a cross trace with single layer or multi-layer, a cross wire routing with single layer or multi-layer, a twisted trace with single layer or multi-layer, or a twisted wire routing with single layer or multi-layer. ### Claim 12 (depends on 2) The polygon NFC antenna of claim 2, wherein the polygon NFC antenna is applied to a portable electronic device, and the first radiation part, the second radiation part, the third radiation part, the fourth radiation part, and the fifth radiation part are positioned on different surfaces of the portable electronic device for multi-position detection in NFC. ### Claim 13 (depends on 2) The polygon NFC antenna of claim 2, further comprising: a first ferrite sheet, formed overlap the first radiation part; a second ferrite sheet, formed overlap the second radiation part; and a fourth ferrite sheet, formed overlap the fourth radiation part. ### Claim 14 (depends on 13) The polygon NFC antenna of claim 13, further comprising: a third ferrite sheet, formed overlap the third radiation part; and a fifth ferrite sheet, formed overlap the fifth radiation part. ### Claim 15 (depends on 14) The polygon NFC antenna of claim 14, wherein the first ferrite sheet, the second ferrite sheet, the third ferrite sheet, the fourth ferrite sheet, and the fifth ferrite sheet are integrated into a single ferrite sheet. ### Claim 16 (depends on 1) The polygon NFC antenna of claim 1, wherein the first pattern is a square, a rectangle, an ellipse, or a circle. ### Claim 17 (depends on 1) The polygon NFC antenna of claim 1, wherein the second pattern is a square, a rectangle, an ellipse, or a circle. ### Claim 18 (depends on 1) The polygon NFC antenna of claim 1, wherein the third radiation part has an opening coupled to the at least an antenna feed point, wherein the opening is in either the first or the second radiation parts. ### Claim 19 (depends on 1) The polygon NFC antenna of claim 1, wherein the third radiation part is arranged to have a parallel trace with single layer or multi-layer, a parallel wire routing with single layer or multi-layer, a cross trace with single layer or multi-layer, a cross wire routing with single layer or multi-layer, a twisted trace with single layer or multi-layer, or a twisted wire routing with single layer or multi-layer. ### Claim 20 (depends on 1) The polygon NFC antenna of claim 1, wherein the polygon NFC antenna is formed by a PCB process, an FPCB process, or a copper wire process. ### Claim 21 (depends on 1) The polygon NFC antenna of claim 1, wherein the polygon NFC antenna is applied to a portable electronic device, and the first radiation part, the second radiation part, and the third radiation part, are positioned on different surfaces of the portable electronic device for multi-position detection in NFC. ### Claim 22 (depends on 1) The polygon NFC antenna of claim 1, further comprising: a first ferrite sheet, formed overlap the first radiation part; and a second ferrite sheet, formed overlap the second radiation part. ### Claim 23 (depends on 22) The polygon NFC antenna of claim 22, further comprising: a third ferrite sheet, formed overlap the third radiation part. ### Claim 24 (depends on 23) The polygon NFC antenna of claim 23, wherein the first ferrite sheet, the second ferrite sheet, and the third ferrite sheet are integrated into a single ferrite sheet.