# US 11,909,105 B2 · Antenna for improving influence of surface waves and increasing beamwidth > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,105 B2 - Document ID: US11909105B2 - Status: Granted - Kind: B2 - Application number: 16/920,875 - Filed: 2020-07-06 - Published: 2021-07-08 - Granted: 2024-02-20 - Earliest claimed: 2020-01-06 - Assignees: Arcadyan Technology Corporation - Applicants: Arcadyan Technology Corporation - Inventors: Guan-Yi Li; Shin-Lung Kuo - Web page: https://patentgrep.com/patent/US11909105B2 ## CPC - H01Q 1/3233: {particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems} - G01S 7/03: Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver - H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 1/525: {between emitting and receiving antennas} - H01Q 13/206: {Microstrip transmission line antennas} - H01Q 21/065: {Patch antenna array} - H01Q 21/068: {using parallel coplanar travelling wave or leaky wave aerial units (H01Q21/065 takes precedence)} - G01S 13/32: using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated - G01S 13/58: Velocity or trajectory determination systems; Sense-of-movement determination systems - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract An antenna for improving an influence of surface waves and increasing a beamwidth includes: a substrate, a first metal ground, a second metal ground, an emitting end and a receiving module. The first metal ground and the second metal ground are disposed on a first surface of the substrate. The second metal ground is completely separated from the first metal ground by a first gap. The emitting end is disposed on the first metal ground and includes a transmission line and a plurality of radiating elements. The receiving module is disposed on the second metal ground and includes a first receiving end and a second receiving end. The first receiving end includes a transmission line and a plurality of radiating elements. The second receiving end includes a transmission line and a plurality of radiating elements. ## Claims ### Claim 1 An antenna for improving an influence of surface waves and increasing a beamwidth, comprising: a substrate having two surfaces along a Z-axis direction, which are defined as a first surface and a second surface, respectively, the substrate having two sides along a Y-axis direction, which are defined as a first side and a second side, respectively, the substrate having two sides along an X-axis direction, which are defined as a third side and a fourth side, respectively; at least one first metal ground disposed on the first surface of the substrate; a second metal ground disposed on the first surface of the substrate, and located on a side of the at least one first metal ground along the X-axis direction, wherein the second metal ground is completely separated from the at least one first metal ground by a first gap; at least one emitting end disposed on the at least one first metal ground, and including a transmission line and a plurality of radiating elements, wherein the transmission line of the at least one emitting end extends along the Y-axis direction, the radiating elements of the at least one emitting end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the at least one emitting end along the Y-axis direction; and at least one receiving module disposed on the second metal ground and including a first receiving end and a second receiving end, wherein the first receiving end includes a transmission line and a plurality of radiating elements, and the transmission line of the first receiving end extends along the Y-axis direction, the radiating elements of the first receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the first receiving end along the Y-axis direction, and the second receiving end is located on a side of the first receiving end along the X-axis direction, the second receiving end includes a transmission line and a plurality of radiating elements, the transmission line of the second receiving end extends along the Y-axis direction, the radiating elements of the second receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the second receiving end along the Y-axis direction; wherein locations of the radiating elements on the first side of the transmission line of the first receiving end are interleaved with locations of the radiating elements on the first side of the transmission line of the second receiving end, locations of the radiating elements on the second side of the transmission line of the first receiving end are interleaved with locations of the radiating elements on the second side of the transmission line of the second receiving end. ### Claim 2 (depends on 1) The antenna as claimed in claim 1, wherein the at least one first metal ground comprises a plurality of first metal grounds, the at least one emitting end comprises a plurality of emitting ends, adjacent two first metal grounds are completely separated by a second gap, and the emitting ends are respectively disposed on the first metal grounds. ### Claim 3 (depends on 2) The antenna as claimed in claim 2, wherein a width of the second gap is larger than or equal to 1 mm. ### Claim 4 (depends on 1) The antenna as claimed in claim 1, wherein the at least one receiving module comprises a plurality of receiving modules, the locations of the radiating elements on the first side of the transmission line of the first receiving end of the receiving modules are aligned with each other, the locations of the radiating elements on the second side of the transmission line of the first receiving end of the receiving modules are aligned with each other, the locations of the radiating elements on the first side of the transmission line of the second receiving end of the receiving modules are aligned with each other, and the locations of the radiating elements on the second side of the transmission line of the second receiving end of the receiving modules are aligned with each other. ### Claim 5 (depends on 1) The antenna as claimed in claim 1, wherein a width of the first gap is larger than or equal to 1 mm. ### Claim 6 (depends on 1) The antenna as claimed in claim 1, wherein the at least one first metal ground is completely separated from the third side of the substrate by a gap. ### Claim 7 (depends on 1) The antenna as claimed in claim 1, wherein the second metal ground is completely separated from the fourth side of the substrate by a gap. ### Claim 8 An antenna for improving an influence of surface waves and increasing a beamwidth, comprising: a substrate having two surfaces along a Z-axis direction, which are defined as a first surface and a second surface, respectively, the substrate having two sides along a Y-axis direction, which are defined as a first side and a second side, respectively, the substrate having two sides along an X-axis direction, which are defined as a third side and a fourth side, respectively; at least one first metal ground disposed on the first surface of the substrate; a second metal ground disposed on the first surface of the substrate, and located on a side of the at least one first metal ground along the X-axis direction, wherein the second metal ground is completely separated from the at least one first metal ground by a first gap; at least one emitting end disposed on the at least one first metal ground, and including a transmission line and a plurality of radiating elements, wherein the transmission line of the at least one emitting end extends along the Y-axis direction, the radiating elements of the at least one emitting end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the at least one emitting end along the Y-axis direction; and at least one receiving module disposed on the second metal ground and including a first receiving end and a second receiving end, wherein the first receiving end includes a transmission line and a plurality of radiating elements, and the transmission line of the first receiving end extends along the Y-axis direction, the radiating elements of the first receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the first receiving end along the Y-axis direction, and the second receiving end is located on a side of the first receiving end along the X-axis direction, the second receiving end includes a transmission line and a plurality of radiating elements, the transmission line of the second receiving end extends along the Y-axis direction, the radiating elements of the second receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the second receiving end along the Y-axis direction; wherein the at least one first metal ground is completely separated from the third side of the substrate by a gap. ### Claim 9 (depends on 8) The antenna as claimed in claim 8, wherein the at least one receiving module comprises a plurality of receiving modules, locations of the radiating elements on the first side of the transmission line of the first receiving end of the receiving modules are aligned with each other, locations of the radiating elements on the second side of the transmission line of the first receiving end of the receiving modules are aligned with each other, locations of the radiating elements on the first side of the transmission line of the second receiving end of the receiving modules are aligned with each other, and locations of the radiating elements on the second side of the transmission line of the second receiving end of the receiving modules are aligned with each other. ### Claim 10 (depends on 8) The antenna as claimed in claim 8, wherein locations of the radiating elements on the first side of the transmission line of the first receiving end are aligned with locations of the radiating elements on the first side of the transmission line of the second receiving end; and wherein locations of the radiating elements on the second side of the transmission line of the first receiving end are aligned with locations of the radiating elements on the second side of the transmission line of the second receiving end. ### Claim 11 (depends on 10) The antenna as claimed in claim 10, wherein the at least one receiving module comprises a plurality of receiving modules, the locations of the radiating elements on the first side of the transmission line of the first receiving end of the receiving modules are aligned with the locations of the radiating elements on the first side of the transmission line of the second receiving end of the receiving modules, and the locations of the radiating elements on the second side of the transmission line of the first receiving end of the receiving modules are aligned with the locations of the radiating elements on the second side of the transmission line of the second receiving end of the receiving modules. ### Claim 12 (depends on 8) The antenna as claimed in claim 8, wherein a width of the first gap is larger than or equal to 1 mm. ### Claim 13 An antenna for improving an influence of surface waves and increasing a beamwidth, comprising: a substrate having two surfaces along a Z-axis direction, which are defined as a first surface and a second surface, respectively, the substrate having two sides along a Y-axis direction, which are defined as a first side and a second side, respectively, the substrate having two sides along an X-axis direction, which are defined as a third side and a fourth side, respectively; at least one first metal ground disposed on the first surface of the substrate; a second metal ground disposed on the first surface of the substrate, and located on a side of the at least one first metal ground along the X-axis direction, wherein the second metal ground is completely separated from the at least one first metal ground by a first gap; at least one emitting end disposed on the at least one first metal ground, and including a transmission line and a plurality of radiating elements, wherein the transmission line of the at least one emitting end extends along the Y-axis direction, the radiating elements of the at least one emitting end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the at least one emitting end along the Y-axis direction; and at least one receiving module disposed on the second metal ground and including a first receiving end and a second receiving end, wherein the first receiving end includes a transmission line and a plurality of radiating elements, and the transmission line of the first receiving end extends along the Y-axis direction, the radiating elements of the first receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the first receiving end along the Y-axis direction, and the second receiving end is located on a side of the first receiving end along the X-axis direction, the second receiving end includes a transmission line and a plurality of radiating elements, the transmission line of the second receiving end extends along the Y-axis direction, the radiating elements of the second receiving end are in a strip shape and disposed at intervals on a first side and a second side of the transmission line of the second receiving end along the Y-axis direction; wherein the second metal ground is completely separated from the fourth side of the substrate by a gap. ### Claim 14 (depends on 13) The antenna as claimed in claim 13, wherein the at least one receiving module comprises a plurality of receiving modules, locations of the radiating elements on the first side of the transmission line of the first receiving end of the receiving modules are aligned with each other, locations of the radiating elements on the second side of the transmission line of the first receiving end of the receiving modules are aligned with each other, locations of the radiating elements on the first side of the transmission line of the second receiving end of the receiving modules are aligned with each other, and locations of the radiating elements on the second side of the transmission line of the second receiving end of the receiving modules are aligned with each other. ### Claim 15 (depends on 13) The antenna as claimed in claim 13, wherein locations of the radiating elements on the first side of the transmission line of the first receiving end are aligned with locations of the radiating elements on the first side of the transmission line of the second receiving end; and wherein locations of the radiating elements on the second side of the transmission line of the first receiving end are aligned with locations of the radiating elements on the second side of the transmission line of the second receiving end. ### Claim 16 (depends on 15) The antenna as claimed in claim 15, wherein the at least one receiving module comprises a plurality of receiving modules, the locations of the radiating elements on the first side of the transmission line of the first receiving end of the receiving modules are aligned with the locations of the radiating elements on the first side of the transmission line of the second receiving end of the receiving modules, and the locations of the radiating elements on the second side of the transmission line of the first receiving end of the receiving modules are aligned with the locations of the radiating elements on the second side of the transmission line of the second receiving end of the receiving modules. ### Claim 17 (depends on 13) The antenna as claimed in claim 13, wherein a width of the first gap is larger than or equal to 1 mm.