# US 12,224,485 B2 · Microminiaturized antenna feed module and electronic device using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,224,485 B2 - Document ID: US12224485B2 - Status: Granted - Kind: B2 - Application number: 17/828,328 - Filed: 2022-05-31 - Published: 2023-11-09 - Granted: 2025-02-11 - Earliest claimed: 2022-05-07 - Assignees: Fih Co., Ltd - Applicants: Fih Co., Ltd. - Inventors: Cho-Kang Hsu; Min-Hui Ho; Wei-Cheng Su; Yen-Hui Lin - Web page: https://patentgrep.com/patent/US12224485B2 ## CPC - H01Q 1/243: {with built-in antennas} - H01Q 5/335: at the feed, e.g. for impedance matching - H01Q 13/10: Resonant slot antennas - H04B 1/006: {using switches for selecting the desired band (H04B1/0057 takes precedence)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H04B: TRANSMISSION ## Abstract A microminiaturized antenna feed module includes a substrate, a plurality of coupled feed portions, and an active circuit. The substrate defines a plurality of visa penetrating the substrate. The coupled feed portions, made of conductive material and have different coupling areas, are electrically connected to the active circuit through the holes, to feed in electrical signals, the coupled feed portions couple the electrical signals to the metal frame to radiate wireless signals; the active circuit controls the switching of radiation modes of the metal frame. The application also provides an electronic device with the microminiaturized antenna feed module. ## Claims ### Claim 1 A microminiaturized antenna feed module applied in an electronic device having a metal frame, comprising: a substrate defining a plurality of vias penetrating the substrate; an active circuit disposed on a first surface of the substrate and configured to switch radiation modes; and a plurality of coupled feed portions disposed on a second surface of the substrate and having different coupling areas; wherein the second surface is opposite to the first surface, the plurality of coupled feed portions, made of conductive material, electrically connect to the active circuit through the plurality of vias to feed in electrical signals and the plurality of coupled feed portions couple the electrical signals to the metal frame to radiate wireless signals, an area allocation of the plurality of coupled feed portions is adjustable in proportion to a bandwidth requirement. ### Claim 2 (depends on 1) The microminiaturized antenna feed module according to claim 1, wherein the plurality of coupled feed portions are coplanar but not overlapped. ### Claim 3 (depends on 1) The microminiaturized antenna feed module according to claim 1, wherein the plurality of coupled feed portions are not coplanar but partially overlapped. ### Claim 4 (depends on 1) The microminiaturized antenna feed module according to claim 1, wherein a projection area of one of plurality of coupled feed portions on the substrate occupies over 40% of an area of the substrate, and a projection area of another one of the plurality of coupled feed portions on the substrate occupies less than 10% of the area of the substrate. ### Claim 5 (depends on 4) The microminiaturized antenna feed module according to claim 4, wherein a projection of the second coupled feed portion on the substrate and a projection of the third coupled feed portion on the substrate are not overlapped. ### Claim 6 (depends on 1) The microminiaturized antenna feed module according to claim 1, wherein the first surface faces the metal frame, a least one of the plurality of coupled feed portions is disposed on the first surface, and the active circuit and a connector are disposed on the second surface. ### Claim 7 (depends on 6) The microminiaturized antenna feed module according to claim 6, wherein the plurality of coupled feed portions comprises a first coupled feed portion and a second coupled feed portion, one of the first coupled feed portion and the second coupled feed portion is arranged on the first surface of the substrate, the other one of the first coupled feed portion and the second coupled feed portion is arranged inside the substrate and under the first surface. ### Claim 8 (depends on 1) The microminiaturized antenna feed module according to claim 1, wherein the active circuit comprises a switch and a plurality of adjustable elements, a frequency radiation mode of the microminiaturized antenna feed module is controlled by switching the switch to a corresponding adjustable element and a corresponding feed source, to generate a middle frequency band, a high frequency band, a ultra-high frequency band (UHB), a global positioning system (GPS) frequency band, a WI-FI 2.4G frequency band, a WI-FI 5G frequency band, a 5G Sub 6 NR frequency band, a 5G Sub 7 frequency band, and a WI-FI 6E frequency band. ### Claim 9 An electronic device comprising: a metal frame; a microminiaturized antenna feed module spaced apart from the metal frame, comprising: a substrate defining a plurality of vias penetrating the substrate; an active circuit disposed on a first surface of the substrate and configured to switch radiation modes; and a plurality of coupled feed portions disposed on a second surface of the substrate and having different coupling areas; wherein the second surface is opposite to the first surface, the plurality of coupled feed portions, made of conductive material, electrically connect to the active circuit through the plurality of vias to feed in electrical signals and the plurality of coupled feed portions couple the electrical signals to the metal frame to radiate wireless signals, an area allocation of the plurality of coupled feed portions is adjustable in proportion to a bandwidth requirement. ### Claim 10 (depends on 9) The electronic device according to claim 9, wherein the plurality of coupled feed portions are coplanar but not overlapped. ### Claim 11 (depends on 9) The electronic device according to claim 9, wherein the plurality of coupled feed portions are not coplanar but partially overlapped. ### Claim 12 (depends on 9) The electronic device according to claim 9, wherein a projection area of one of the plurality of coupled feed portions on the substrate occupies over 40% of an area of the substrate, and a projection area of another one of the plurality of coupled feed portions on the substrate occupies less than 10% of the area of the substrate. ### Claim 13 (depends on 12) The electronic device according to claim 12, wherein a projection of the second coupled feed portion on the substrate and a projection of the third coupled feed portion on the substrate are not overlapped. ### Claim 14 (depends on 9) The electronic device according to claim 9, wherein the first surface faces the metal frame, one of the plurality of coupled feed portion is disposed on the first surface, and the active circuit and a connector are disposed on the second surface. ### Claim 15 (depends on 14) The electronic device according to claim 14, wherein the plurality of coupled feed portions comprises a first coupled feed portion and a second coupled feed portion, one of the first coupled feed portion and the second coupled feed portion is arranged on the first surface of the substrate, the other one of the first coupled feed portion and the second coupled feed portion is arranged inside the substrate and under the first surface. ### Claim 16 (depends on 9) The electronic device according to claim 9, wherein the active circuit comprises a switch and a plurality of adjustable elements, a frequency radiation mode of the microminiaturized antenna feed module is controlled by switching the switch to a corresponding adjustable element and a corresponding feed source, to generate a middle frequency band, a high frequency band, a ultra-high frequency band (UHB), a global positioning system (GPS) frequency band, a WI-FI 2.4G frequency band, a WI-FI 5G frequency band, a 5G Sub 6 NR frequency band, a 5G Sub 7 frequency band, and a WI-FI 6E frequency band. ### Claim 17 (depends on 9) The electronic device according to claim 9, wherein the metal frame defines at least one gap and is divided into a first part and a second part, the microminiaturized antenna feed module is arranged correspondingly to the at least one gap. ### Claim 18 (depends on 17) The electronic device according to claim 17, wherein the electronic device further comprises an electronic component spaced apart from the metal frame, the microminiaturized antenna feed module is disposed in a slit formed between the electronic component and the metal frame, and the plurality of coupled feed portions and the metal frame are spaced apart.