# US 12,015,207 B2 · Wideband antennas and access points including such antennas > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,207 B2 - Document ID: US12015207B2 - Status: Granted - Kind: B2 - Application number: 17/835,998 - Filed: 2022-06-09 - Published: 2023-01-26 - Granted: 2024-06-18 - Earliest claimed: 2021-07-20 - Assignees: Ruckus IP Holdings LLC - Applicants: ARRIS Enterprises LLC - Inventors: James W. Jervis - Web page: https://patentgrep.com/patent/US12015207B2 ## CPC - H01Q 21/30: Combinations of separate antenna units operating in different wavebands and connected to a common feeder system - H01Q 1/2291: {used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W)} - 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 3/44: varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element - H01Q 11/105: {using a dielectric support} - H01Q 19/24: the primary active element being centre-fed and substantially straight, e.g. H-antenna - H01Q 21/062: {using dipole aerials; (H01Q21/067, H01Q21/068 take precedence)} - H01Q 21/205: {providing an omnidirectional coverage (turnstile aerials H01Q21/26)} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract An antenna comprises a printed circuit board that includes a central feed point and a plurality of antenna elements formed therein, where the antenna elements extending radially from the central feed point. Each antenna element comprises a feed line that is coupled to the central feed point, the feed line including a feed conductor and a ground conductor, and at least two dipole radiators coupled to the feed line, each dipole radiator comprising a first dipole arm that is coupled to the feed conductor and a second dipole arm that is coupled to the ground conductor. A first length of a first of the dipole radiators is different than a second length of a second of the dipole radiators. Each of the dipole radiators is fed in-phase. ## Claims ### Claim 1 An access point, comprising an access point printed circuit board that has radio circuitry mounted thereon; and an antenna, comprising: an antenna printed circuit board that includes a central feed point and a plurality of antenna elements formed therein, the antenna elements extending radially from the central feed point, where each antenna element comprises: a feed line that is coupled to the central feed point, the feed line including a feed conductor and a ground conductor; at least two dipole radiators coupled to the feed line, each dipole radiator comprising a first dipole arm that is coupled to the feed conductor and a second dipole arm that is coupled to the ground conductor, wherein a first length of a first of the dipole radiators is different than a second length of a second of the dipole radiators, and wherein each of the dipole radiators is fed in-phase, wherein the antenna printed circuit board is mounted on the access point printed circuit board and extends parallel to the access point printed circuit board. ### Claim 2 (depends on 1) The access point of claim 1, wherein the antenna printed circuit board comprises a two-metal-layer printed circuit board having a first metal layer and a second metal layer. ### Claim 3 (depends on 2) The access point of claim 2, wherein the feed conductor and the first dipole arm of each dipole radiator of each of the antenna elements are formed in the first metal layer and the ground conductor and the second dipole arm of each dipole radiator of each of the antenna elements are formed in the second metal layer. ### Claim 4 (depends on 1) The access point of claim 1, wherein a first of the antenna elements includes at least three dipole radiators, where each dipole radiator has a different length. ### Claim 5 (depends on 4) The access point of claim 4, wherein a second of the antenna elements includes at least three dipole radiators, and wherein a length of each of the dipole radiators of a first of the antenna elements is equal to a length of a respective one of the dipole radiators of the second of the antenna elements. ### Claim 6 (depends on 1) The access point of claim 1, wherein the antenna includes a total of three antenna elements, and wherein each antenna element extends from the central feed point in a direction that is offset by 120° from the direction that the other two antenna elements extend from the central feed point. ### Claim 7 (depends on 1) The access point of claim 1, wherein the first of the dipole radiators of a first of the antenna elements is farther from the central feed point than is the second of the dipole radiators of the first of the antenna elements. ### Claim 8 An antenna, comprising: a printed circuit board that includes a central feed point and a plurality of antenna elements formed therein, the antenna elements extending radially from the central feed point, where each antenna element comprises: a feed line that is coupled to the central feed point, the feed line including a feed conductor and a ground conductor; at least two dipole radiators coupled to the feed line, each dipole radiator comprising a first dipole arm that is coupled to the feed conductor and a second dipole arm that is coupled to the ground conductor, wherein a first length of a first of the dipole radiators is different than a second length of a second of the dipole radiators, and wherein each of the dipole radiators is fed in-phase, wherein the at least two dipole radiators comprise an outermost dipole radiator and an innermost dipole radiator, the outermost dipole radiator positioned farther from the central feed point than the innermost dipole radiator and the outermost dipole radiator being longer than the innermost dipole radiator, wherein the antenna further comprises either a plurality of directors or a plurality of reflectors, where each director or reflector is part of a respective one of the antenna elements, the directors or reflectors radially arranged about the central feed point and positioned outwardly of the respective outermost dipole radiators, wherein each director, if provided, is shorter than a respective one of the outermost dipole radiators and each reflector, if provided, is longer than a respective one of the outermost dipole radiators, wherein each director or reflector is coupled to a ground reference through a respective switch. ### Claim 9 An antenna, comprising: a plurality of antenna elements extending radially from a central region, where each antenna element comprises: a feed line that is coupled to a power divider, the feed line including a feed conductor and a ground conductor; and at least two dipole radiators coupled to the feed line, each dipole radiator comprising a first dipole arm that extends in a first direction from the feed line and a second dipole arm that extends in a second direction from the feed line that is different than the first direction, wherein the feed conductor is coupled to each first dipole arm, and the ground conductor is coupled to each second dipole arm, and wherein a first length of a first of the dipole radiators is different than a second length of a second of the dipole radiators, wherein the at least two dipole radiators comprise an outermost dipole radiator and an innermost dipole radiator, the outermost dipole radiator positioned farther from the central region than the innermost dipole radiator and the outermost dipole radiator being longer than the innermost dipole radiator, and the antenna further comprising a plurality of directors, where each director is part of a respective one of the antenna elements, the directors radially arranged about the central region and positioned outwardly of the respective outermost dipole radiators, wherein each director is shorter than the outermost dipole radiator of the antenna element that the director is part of, wherein each director is coupled to a ground reference through a respective switch. ### Claim 10 (depends on 9) The antenna of claim 9, wherein the second direction is opposite the first direction. ### Claim 11 (depends on 9) The antenna of claim 9, wherein a first of the antenna elements includes at least three dipole radiators, where each dipole radiator has a different length, wherein a second of the antenna elements includes at least three dipole radiators, and wherein a length of each of the dipole radiators of the first of the antenna elements is equal to a length of a respective one of the dipole radiators of the second of the antenna elements. ### Claim 12 (depends on 9) The antenna of claim 9, wherein the antenna includes a total of three antenna elements, and wherein each antenna element extends from the central region in a direction that is offset by 120° from the direction that the other two antenna elements extend from the central region. ### Claim 13 (depends on 9) The antenna of claim 9, wherein the first of the dipole radiators of a first of the antenna elements is farther from the central region than is the second of the dipole radiators of the first of the antenna elements. ### Claim 14 An antenna, comprising: a plurality of antenna elements extending radially from a central region, where each antenna element comprises: a feed line that is coupled to a power divider, the feed line including a feed conductor and a ground conductor; and at least two dipole radiators coupled to the feed line, each dipole radiator comprising a first dipole arm that extends in a first direction from the feed line and a second dipole arm that extends in a second direction from the feed line that is different than the first direction, wherein the feed conductor is coupled to each first dipole arm, and the ground conductor is coupled to each second dipole arm, and wherein a first length of a first of the dipole radiators is different than a second length of a second of the dipole radiators, wherein the at least two dipole radiators comprise an outermost dipole radiator and an innermost dipole radiator, the outermost dipole radiator positioned farther from the central region than the innermost dipole radiator and the outermost dipole radiator being longer than the innermost dipole radiator, and the antenna further comprising a plurality of reflectors, where each reflector is part of a respective one of the antenna elements, the reflectors radially arranged about the central region and positioned outwardly of the respective outermost dipole radiators, wherein each reflector is longer than the outermost dipole radiator of the antenna element that the reflector is part of, wherein each reflector is coupled to a ground reference through a respective switch. ### Claim 15 (depends on 8) The antenna of claim 8, wherein the antenna includes the plurality of directors. ### Claim 16 (depends on 8) The antenna of claim 8, wherein the antenna includes the plurality of reflectors. ### Claim 17 (depends on 14) The antenna of claim 14, wherein the second direction is opposite the first direction. ### Claim 18 (depends on 14) The antenna of claim 14, wherein a first of the antenna elements includes at least three dipole radiators, where each dipole radiator has a different length, wherein a second of the antenna elements includes at least three dipole radiators, and wherein a length of each of the dipole radiators of the first of the antenna elements is equal to a length of a respective one of the dipole radiators of the second of the antenna elements. ### Claim 19 (depends on 14) The antenna of claim 14, wherein the antenna includes a total of three antenna elements, and wherein each antenna element extends from the central region in a direction that is offset by 120° from the direction that the other two antenna elements extend from the central region.