# US 2017/0288312 A1 · Dual polarized antenna apparatus and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0288312 A1 - Document ID: US20170288312A1 - Status: Published application - Kind: A1 - Application number: 15/089,081 - Filed: 2016-04-01 - Published: 2017-10-05 - Earliest claimed: 2016-04-01 - Assignees: Pulse Finland Oy - Applicants: Pulse Finland Oy - Inventors: Kimmo Koskiniemi; Petteri Annamaa - Web page: https://patentgrep.com/patent/US20170288312A1 ## CPC - H01Q 9/285: {Planar dipole (H01Q9/065 takes precedence; patch antenna H01Q9/0407)} - H01Q 1/243: {with built-in antennas} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H01Q 9/28: Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00) - H01Q 21/26: Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre - H01Q 1/246: {specially adapted for base stations} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract Multi-element dual polarized antenna apparatus and methods of utilizing and manufacturing the same. The antenna apparatus includes two planar antenna elements. One antenna element is configured to communicate RF waves characterized by a first polarization and another antenna element is configured to communicate RF waves characterized by second polarization. Feed elements are disposed such that their longitudinal axes are parallel with one another while their transverse axes are disposed perpendicular with one another. Individual feed elements include planar feed structures disposed on sides of the feed elements that are facing the same quadrant. Arranging the antenna feed structure using the above configuration provides for an antenna characterized by improved improved port to port isolation and/or improved cross polarization discrimination without the use of additional components. ## Claims ### Claim 1 A dual polarized radio frequency antenna apparatus, comprising: a first radiator component configured to communicate radio frequency waves of a first polarization; a second radiator component configured to communicate radio frequency waves of a second polarization; a first feed component galvanically coupled to the first radiator component; and a second feed component galvanically coupled to the second radiator component, the first and the second feed components configured to communicate radio frequency waves of the first and the second polarization, respectively; wherein: the first feed component comprises a first planar conductor characterized by a longitudinal dimension and a transverse dimension; the second feed component comprises a second planar conductor characterized by a longitudinal dimension and a transverse dimension; the longitudinal dimension of the second feed component being arranged parallel with the longitudinal dimension of the first feed component; the transverse dimension of the second feed component being arranged perpendicular with the transverse dimension of the first feed component; and the first planar conductor and the second planar conductor configured to face a given quadrant. ### Claim 2 (depends on 1) The antenna apparatus of claim 1, wherein the first polarization is characterized by a polarization orientation that is 90 degrees from a polarization orientation associated with the second polarization. ### Claim 3 (depends on 1) The antenna apparatus of claim 1, wherein an orientation of the first polarization and an orientation of the second polarization are configured at an angle with respect to one another, the angle selected from the range between 85 and 95 degrees, inclusive. ### Claim 4 (depends on 3) The antenna apparatus of claim 3, wherein the first radiator component is configured at the angle with respect to the second radiator component. ### Claim 5 (depends on 4) The antenna apparatus of claim 4, wherein: the first feed component comprises: a first planar ground conductor; and a first planar dielectric substrate comprising a first planar surface configured to support the first planar conductor and a second planar surface configured to support the first planar ground conductor; and the second feed component comprises: a second planar ground conductor; and a second planar dielectric substrate comprising a third planar surface configured to support the second planar conductor and a fourth planar surface configured to support the second planar ground conductor. ### Claim 6 (depends on 5) The antenna apparatus of claim 5, wherein the first and the second planar ground conductors are configured to be coupled to the first and the second radiator components, respectively. ### Claim 7 (depends on 5) The antenna apparatus of claim 5, wherein the first planar conductor is configured to be coupled to a first port of a radio frequency transceiver; and the second planar conductor is configured to be coupled to a second port of the radio frequency transceiver, the transceiver configured to communicate radio frequency waves of the first polarization and the second polarization waves in a frequency band. ### Claim 8 (depends on 7) The antenna apparatus of claim 7, wherein the frequency band is selected from a range between 1700 MHz and 2700 MHz. ### Claim 9 (depends on 4) The antenna apparatus of claim 4, wherein the communication of the radio frequency waves of the first polarization is configured to occur contemporaneous with communication of the radio frequency waves of the second polarization. ### Claim 10 (depends on 9) The antenna apparatus of claim 9, wherein the communication of the radio frequency waves of the first polarization and communication of the radio frequency waves of the second polarization comprise a plurality of carriers configured using orthogonal frequency division multiplexing. ### Claim 11 (depends on 9) The antenna apparatus of claim 9, wherein: the communication of the radio frequency waves of the first polarization is configured to provide a first communication path; and the communication of the radio frequency waves of the second polarization is configured to provide a second communication path, the second communication path characterized by a different path length relative to the first communication path. ### Claim 12 (depends on 11) The antenna apparatus of claim 11, wherein the first and the second communication paths are configured to effectuate polarized multiplexing. ### Claim 13 (depends on 11) The antenna apparatus of claim 11, wherein: the first communication path is characterized by a first spatial parameter; and the second communication path is characterized by a second spatial parameter that is different from the first spatial parameter. ### Claim 14 (depends on 11) The antenna apparatus of claim 11, wherein: the first communication path is characterized by a first path length; and the second communication path is characterized by a second path length, the second communication path configured to produce a differing signal phase as compared to a phase of signal propagating over the first communications path. ### Claim 15 A component of an antenna configured to communicate radio signals of a first polarization and a second polarization, the component comprising: a first planar feed structure configured to be coupled to a first radiator of the antenna, the first radiator configured to communicate radio signals of the first polarization; and a second planar feed structure configured to be coupled to a second radiator of the antenna, the second radiator configured to communicate radio signals of the second polarization; wherein: the first polarization is configured to be substantially orthogonal with the second polarization; a plane of the first planar feed structure is configured substantially orthogonal to a plane of the second planar feed structure; and the first planar feed structure and the second planar feed structure are disposed such that they both face a given quadrant of a three dimensional space. ### Claim 16 (depends on 15) The component of claim 15, wherein: the first planar feed structure is characterized by a first longitudinal dimension and a first transverse dimension; the second planar feed structure is characterized by a second longitudinal dimension and a second transverse dimension; and the second longitudinal dimension of the second planar feed structure is substantially parallel with the first longitudinal dimension of the first planar feed structure. ### Claim 17 (depends on 16) The component of claim 16, wherein the second transverse dimension of the second planar feed structure is substantially orthogonal with the first transverse dimension of the first planar feed structure. ### Claim 18 (depends on 17) The component of claim 17, wherein: the first planar feed structure comprises a first planar dielectric substrate, a first planar ground conductor and a first planar feed conductor, the first planar ground conductor and the first planar feed conductor being disposed on opposing sides of the first planar dielectric substrate; and the second planar feed structure comprises a second planar dielectric substrate, a second planar ground conductor and a second planar feed conductor, the second planar feed conductor and the second planar ground conductor being disposed on opposing sides of the second planar dielectric substrate. ### Claim 19 (depends on 18) The component of claim 18, wherein: the first planar dielectric substrate and the second planar dielectric substrate are disposed such that a surface of the first planar dielectric substrate that is supporting the first planar feed conductor and a surface of the second planar dielectric substrate that is supporting the second planar feed conductor are facing the given quadrant. ### Claim 20 A method for configuring an antenna apparatus of a wireless device to communicate radio signals via a polarization diversity scheme, the method comprising: disposing a plane of a first planar feed conductor perpendicular to a plane of a second planar feed conductor; disposing a longitudinal dimension of the first planar feed conductor parallel with a longitudinal dimension of the second planar feed conductor; disposing the first planar feed conductor and the second planar feed conductor such that they both face a given quadrant of a three dimensional space; coupling the first planar feed conductor to a first radiator component of the antenna apparatus, the first radiator component configured to communicate radio signals of a first polarization; and coupling the second planar feed conductor to a second radiator component of the antenna apparatus, the second radiator component configured to communicate radio signals of a second polarization, the second polarization being different than the first polarization thereby effectuating the polarization diversity scheme.