# US 12,224,507 B2 · Antenna and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,224,507 B2 - Document ID: US12224507B2 - Status: Granted - Kind: B2 - Application number: 17/760,258 - Filed: 2021-11-17 - Published: 2024-06-06 - Granted: 2025-02-11 - Earliest claimed: 2021-11-17 - Assignees: Beijing BOE Technology Development Co., Ltd.; Boe Technology Group Co., Ltd. - Applicants: Beijing BOE Technology Development Co., Ltd.; BOE Technology Group Co., Ltd. - Inventors: Yali Wang; Feng Qu - Web page: https://patentgrep.com/patent/US12224507B2 ## CPC - H01Q 9/0428: {radiating a circular polarised wave} - H01Q 9/045: {with particular feeding means (for circular polarisation H01Q9/0428)} - H01Q 1/22: by structural association with other equipment or articles - H01Q 9/04: Resonant antennas - H01Q 9/0414: {in a stacked or folded configuration} - H01Q 25/005: {providing two patterns of opposite direction; back to back antennas (H01Q25/004 takes precedence)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna is provided. The antenna includes a ground plate, and a slot extending through the ground plate; a first dielectric layer on the ground plate and the slot; a microstrip feed line and a first radiating patch on a side of the first dielectric layer away from the ground plate, the first radiating patch being coupled to the microstrip feed line and configured to receive a signal from the microstrip feed line; a second dielectric layer on a side of the ground plate and the slot away from the first dielectric layer, the first radiating patch, and the microstrip feed line; and a second radiating patch on a side of the second dielectric layer away from the ground plate, the second radiating patch being configured to receive a signal by aperture coupling through the slot. ## Claims ### Claim 1 An antenna, comprising: a ground plate, and a slot extending through the ground plate; a first dielectric layer on the ground plate and the slot; a microstrip feed line and a first radiating patch on a side of the first dielectric layer away from the ground plate, the first radiating patch being coupled to the microstrip feed line and configured to receive a signal from the microstrip feed line; a second dielectric layer on a side of the ground plate and the slot away from the first dielectric layer, the first radiating patch, and the microstrip feed line; and a second radiating patch on a side of the second dielectric layer away from the ground plate, the second radiating patch being configured to receive a signal by aperture coupling through the slot; wherein the slot has a shape comprising, sequentially along a first direction, a first rectangular shape, a first trapezoidal shape, a second trapezoidal shape, and a second rectangular shape; short sides of the first trapezoidal shape and the second trapezoidal shape are connected to each other; and along a second direction perpendicular to the first direction, lengths of the first rectangular shape and the second rectangular shape are substantially the same as lengths of long sides of the first trapezoidal shape and the second trapezoidal shape. ### Claim 2 (depends on 1) The antenna of claim 1, wherein the first radiating patch has a first parallelogram shape with a first notch and a second notch truncating two corners of the first parallelogram shape on two opposite sides of a first diagonal line, respectively; the second radiating patch has a second parallelogram shape with a third notch and a fourth notch truncating two corners of the second parallelogram shape on two opposite sides of a second diagonal line, respectively; and the first diagonal line and the second diagonal line cross over each other. ### Claim 3 (depends on 2) The antenna of claim 2, wherein corners of the first parallelogram shape along the second diagonal line remain untruncated; and corners of the second parallelogram shape along the first diagonal line remain untruncated. ### Claim 4 (depends on 2) The antenna of claim 2, wherein the first parallelogram shape has first truncated sides along the first notch and the second notch, respectively; the second parallelogram shape has second truncated sides along the third notch and the fourth notch, respectively; and a length of a respective first truncated side is smaller than a length of a respective second truncated side. ### Claim 5 (depends on 4) The antenna of claim 4, wherein the length of the respective first truncated side is smaller than the length of the respective second truncated side by 5% to 35%. ### Claim 6 (depends on 2) The antenna of claim 2, wherein the first parallelogram shape with the first notch and the second notch are a first square shape with the first notch and the second notch; and the second parallelogram shape with the third notch and the fourth notch are a second square shape with the third notch and the fourth notch. ### Claim 7 (depends on 2) The antenna of claim 2, wherein, along a first direction, a first maximum width of the first parallelogram shape is greater than a second maximum width of the second parallelogram shape; and along a second direction perpendicular to the first direction, a first maximum length of the first parallelogram shape is greater than a second maximum length of the second parallelogram shape. ### Claim 8 (depends on 7) The antenna of claim 7, wherein the first maximum width is greater than the second maximum width by 0.1% to 10%; and the first maximum length is greater than the second maximum length by 0.1% to 10%. ### Claim 9 (depends on 3) The antenna of claim 3, wherein orthographic projections of corners of the first parallelogram shape along the second diagonal line on the first dielectric layer is at least partially non-overlapping with an orthographic projection of the second parallelogram shape on the first dielectric layer; and orthographic projections of corners of the second parallelogram shape along the first diagonal line on the first dielectric layer is at least partially non-overlapping with an orthographic projection of the first parallelogram shape on the first dielectric layer. ### Claim 10 (depends on 1) The antenna of claim 1, wherein, along a first direction, the slot has a maximum slot width; along a second direction perpendicular to the first direction, the slot has a maximum slot length; and a ratio of the maximum slot width to the maximum slot length is in a range of 4:1 to 1.5:1. ### Claim 11 (depends on 10) The antenna of claim 10, wherein the first radiating patch has a first parallelogram shape with a first notch and a second notch truncating two corners of the first parallelogram shape on two opposite sides of a first diagonal line, respectively; the second radiating patch has a second parallelogram shape with a third notch and a fourth notch truncating two corners of the second parallelogram shape on two opposite sides of a second diagonal line, respectively; along the first direction, a ratio of the maximum slot width to a first maximum width of the first parallelogram shape or to a second maximum width of the second parallelogram shape is in a range of 1:1.5 to 1:2.5; and along the second direction, a ratio of the maximum slot length to a first maximum length of the first parallelogram shape or a second maximum length of the second parallelogram shape is in a range of 1:2.5 to 1:6.5. ### Claim 12 (depends on 1) The antenna of claim 1, further comprising an impedance transformation line configured to perform impedance matching; wherein the impedance transformation line connects the microstrip feed line to the first radiating patch. ### Claim 13 (depends on 12) The antenna of claim 12, wherein the impedance transformation line has a rectangular shape. ### Claim 14 (depends on 12) The antenna of claim 12, wherein the impedance transformation line has a first side connected to the microstrip feed line, a second side connected to the first radiating patch, and a third side and a fourth side between the first side and the second side; and the third side and the first side, the third side and the second side, the fourth side and the first side, the fourth side and the second side, are connected by curved sides. ### Claim 15 (depends on 1) The antenna of claim 1, wherein the microstrip feed line is directly connected to the first radiating patch without an impedance transformation line. ### Claim 16 (depends on 1) The antenna of claim 1, wherein an orthographic projection of the slot on the first dielectric layer covers a center of an orthographic projection of the first radiating patch on the first dielectric layer; and the orthographic projection of the slot on the first dielectric layer covers a center of an orthographic projection of the second radiating patch on the first dielectric layer. ### Claim 17 (depends on 1) The antenna of claim 1, wherein the antenna is configured to be a right-handed circularly polarized antenna with bidirectional radiation. ### Claim 18 (depends on 1) An electronic apparatus, comprising the antenna of claim 1. ### Claim 19 An antenna, comprising: a ground plate, and a slot extending through the ground plate; a first dielectric layer on the ground plate and the slot; a microstrip feed line and a first radiating patch on a side of the first dielectric layer away from the ground plate, the first radiating patch being coupled to the microstrip feed line and configured to receive a signal from the microstrip feed line; a second dielectric layer on a side of the ground plate and the slot away from the first dielectric layer, the first radiating patch, and the microstrip feed line; and a second radiating patch on a side of the second dielectric layer away from the ground plate, the second radiating patch being configured to receive a signal by aperture coupling through the slot; wherein the slot has a shape comprising, sequentially along a first direction, a first rectangular shape, a second rectangular shape, and a third rectangular shape; and along a second direction perpendicular to the first direction, a length of the second rectangular shape is smaller than a length of the first rectangular shape and smaller than a length of the third rectangular shape.