# US 12,183,966 B2 · Base station antennas having multi-column sub-arrays of radiating elements > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,183,966 B2 - Document ID: US12183966B2 - Status: Granted - Kind: B2 - Application number: 18/162,757 - Filed: 2023-02-01 - Published: 2023-09-21 - Granted: 2024-12-31 - Earliest claimed: 2022-03-17 - Assignees: Outdoor Wireless Networks LLC - Applicants: Outdoor Wireless Networks LLC - Inventors: Kumara Swamy Kasani; Ligang Wu; Faisalbin Abdulmajeed N; Kamalakar Yeddula - Web page: https://patentgrep.com/patent/US12183966B2 ## CPC - H01Q 1/246: {specially adapted for base stations} - H01Q 1/523: {between antennas of an array} - H01Q 19/10: using reflecting surfaces - H01Q 21/0025: {Modular arrays} - H01Q 21/24: Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} - H01Q 5/48: Combinations of two or more dipole type antennas - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract Base station antennas are provided. A base station antenna includes a first array of radiating elements and a second array of radiating elements that is interleaved with the first array. Each of the first and second arrays has a plurality of non-rectangular sub-arrays that include radiating elements in one or more outer columns and radiating elements in an inner column that is between the first and second outer columns. ## Claims ### Claim 1 A base station antenna comprising: a first antenna array having a vertical stack of first sub-arrays that each comprise a plurality of first-band radiating elements; and a second antenna array having a vertical stack of second sub-arrays that each comprise a plurality of first-band radiating elements, wherein the first sub-arrays share a vertical column of first-band radiating elements with the second sub-arrays, and wherein the first-band radiating elements that are in the shared vertical column are configured to have a fixed phase delay applied thereto that is different from fixed phase delays of the first-band radiating elements of portions of the first and second sub-arrays that are outside of the shared vertical column. ### Claim 2 (depends on 1) The base station antenna of claim 1, wherein the first and second sub-arrays are each L-shaped sub-arrays. ### Claim 3 (depends on 1) The base station antenna of claim 1, further comprising a reflector having the first and second antenna arrays thereon, wherein a width of the reflector is narrower than 700 millimeters, and wherein the first-band radiating elements are configured to operate in all or part of a 617-960 megahertz frequency band. ### Claim 4 (depends on 1) The base station antenna of claim 1, further comprising: a plurality of first power dividers that are coupled to the first sub-arrays, respectively; and a plurality of second power dividers that are coupled to the second sub-arrays, respectively. ### Claim 5 (depends on 4) The base station antenna of claim 4, wherein each of the first and second power dividers comprises a three-way power divider. ### Claim 6 (depends on 4) The base station antenna of claim 4, further comprising a plurality of phase shifters, wherein a first of the first power dividers is coupled between a first of the phase shifters and a first of the first sub-arrays, and wherein a first of the second power dividers is coupled between a second of the phase shifters and a first of the second sub-arrays. ### Claim 7 (depends on 1) The base station antenna of claim 1, wherein the first and second sub-arrays each comprise three first-band radiating elements that are configured to have three different fixed phase delays, respectively, applied thereto. ### Claim 8 (depends on 7) The base station antenna of claim 7, wherein a single one of the three first-band radiating elements is in the shared vertical column. ### Claim 9 (depends on 1) The base station antenna of claim 1, further comprising a plurality of second-band radiating elements, wherein some, but not all, of the first sub-arrays overlap the second-band radiating elements in a forward direction, wherein some, but not all, of the second sub-arrays overlap the second-band radiating elements in the forward direction, and wherein the second band is higher than the first band. ### Claim 10 (depends on 9) The base station antenna of claim 9, wherein the shared vertical column does not overlap any of the second-band radiating elements in the forward direction. ### Claim 11 A base station antenna comprising: a first outer column of radiating elements of a first array, the first array comprising a plurality of first non-rectangular sub-arrays; a second outer column of radiating elements of a second array, the second array comprising a plurality of second non-rectangular sub-arrays; an inner column of radiating elements that is shared by the first and second arrays and is between the first and second outer columns; and a plurality of power dividers, the power dividers comprising first power dividers that are coupled to the first non-rectangular sub-arrays, respectively, and second power dividers that are coupled to the second non-rectangular sub-arrays, respectively, wherein a first of the first non-rectangular sub-arrays comprises first through third radiating elements, wherein the first and second radiating elements are in the first outer column and are coupled by first and second radio frequency (RF) transmission lines, respectively, to a first of the first power dividers, wherein the first and second RF transmission lines have different first and second lengths, respectively, and wherein the third radiating element is in the inner column and is coupled to the first of the first power dividers by a third RF transmission line having a third length that is longer than each of the first and second lengths. ### Claim 12 (depends on 11) The base station antenna of claim 11, wherein a first of the second non-rectangular sub-arrays comprises fourth through six radiating elements, wherein the fourth and fifth radiating elements are in the second outer column and are coupled by fourth and fifth RF transmission lines, respectively, to a first of the second power dividers, wherein the fourth and fifth RF transmission lines have different fourth and fifth lengths, respectively, and wherein the sixth radiating element is in the inner column and is coupled to the first of the second power dividers by a sixth RF transmission line having a sixth length that is longer than each of the fourth and fifth lengths. ### Claim 13 (depends on 12) The base station antenna of claim 12, wherein the first, third, and fourth radiating elements are in a first row, and wherein the second, sixth, and fifth radiating elements are in a second row. ### Claim 14 (depends on 13) The base station antenna of claim 13, further comprising: a reflector having the first and second arrays thereon; a plurality of first metal isolation walls protruding forward from a first edge of the reflector; and a plurality of second metal isolation walls protruding forward from a second edge of the reflector that is opposite the first edge, wherein the first row is between a first of the first metal isolation walls and a first of the second metal isolation walls, and wherein the second row is between a second of the first metal isolation walls and a second of the second metal isolation walls. ### Claim 15 (depends on 13) The base station antenna of claim 13, further comprising a metal isolation wall that is between the third radiating element and the sixth radiating element. ### Claim 16 (depends on 13) The base station antenna of claim 13, wherein the first through sixth RF transmission lines comprise first through sixth cables, respectively, wherein the base station antenna further comprises a plurality of RF ports and a plurality of phase shifters that are coupled to the RF ports, respectively, wherein a first of the phase shifters is coupled between a first of the RF ports and the first of the first power dividers, and wherein a second of the phase shifters is coupled between a second of the RF ports and the first of the second power dividers. ### Claim 17 A base station antenna comprising: a first antenna array having a vertical stack of first sub-arrays that each comprise a plurality of first-band radiating elements; and a second antenna array having a vertical stack of second sub-arrays that each comprise a plurality of first-band radiating elements, wherein the first sub-arrays share a plurality of vertical columns of first-band radiating elements with the second sub-arrays, and wherein the first and second sub-arrays are each triangle-shaped sub-arrays. ### Claim 18 (depends on 17) The base station antenna of claim 17, wherein the first and second sub-arrays each comprise three first-band radiating elements, and wherein the three first-band radiating elements are in three of the vertical columns, respectively. ### Claim 19 (depends on 18) The base station antenna of claim 18, wherein, in each of the three of the vertical columns, the first-band radiating elements of the first antenna array repeatedly alternate with the first-band radiating elements of the second antenna array, wherein the base station antenna further comprises a plurality of radio frequency ports, and wherein each of the first and second antenna arrays is coupled to a respective one of the radio frequency ports per polarization.