Patents by Inventor Dan FLEANCU

Dan FLEANCU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12334645
    Abstract: A dual-polarized radiator arrangement (1) comprises four radiator segments (4a, 4b, 4c, 4d) and a reflector arrangement (2). The radiator segments (4a, 4b, 4c, 4d) are arranged such that they form a square arrangement. Each radiator segment (4a, 4b, 4c, 4d) comprises a minor radiating surface (5) having a first and a second end (5a, 5b) and a feeding assembly (9). Each radiator segment (4a, 4b, 4c, 4d) comprises a first and a second main radiating surface (8a, 8b) arranged in the area of the first end (5a) and the second end (5b) of the minor radiating surface (5) and miming in the direction of the reflector arrangement (2). The first and second main radiating surfaces (8a, 8b) protrude beyond the respective first and second ends (5a, 5b) of the minor radiating surface (5) in the longitudinal direction (6a) of the minor radiating surface (5).
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: June 17, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Andreas Vollmer, Dan Fleancu
  • Publication number: 20240055780
    Abstract: Dipole radiator comprising a first and second carrier and a signal feeding structure. The first and second carriers comprise a sup-port sections with a first and second end and a wing sections. The support sections of the first and second carriers each comprise an inner side which face each other and an opposite outer side. The signal feeding structure comprises a feed section, a connecting section and an end section. The feed section runs along the inner side of the support section goes into the connection section which goes into the end section. The end section runs along the out-er side of the support section of the second carrier.
    Type: Application
    Filed: March 8, 2021
    Publication date: February 15, 2024
    Inventors: Andreas Vollmer, Dan Fleancu
  • Publication number: 20230395998
    Abstract: A dual-polarized radiator arrangement (1) comprises four radiator segments (4a, 4b, 4c, 4d) and a reflector arrangement (2). The radiator segments (4a, 4b, 4c, 4d) are arranged such that they form a square arrangement. Each radiator segment (4a, 4b, 4c, 4d) comprises a minor radiating surface (5) having a first and a second end (5a, 5b) and a feeding assembly (9). Each radiator segment (4a, 4b, 4c, 4d) comprises a first and a second main radiating surface (8a, 8b) arranged in the area of the first end (5a) and the second end (5b) of the minor radiating surface (5) and miming in the direction of the reflector arrangement (2). The first and second main radiating surfaces (8a, 8b) protrude beyond the respective first and second ends (5a, 5b) of the minor radiating surface (5) in the longitudinal direction (6a) of the minor radiating surface (5).
    Type: Application
    Filed: October 15, 2020
    Publication date: December 7, 2023
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas VOLLMER, Dan FLEANCU
  • Patent number: 11817631
    Abstract: An antenna arrangement comprises a dual-polarised turnstile antenna, which comprises a first and a second dipole antenna element, which are aligned perpendicular to one another. The first and second dipole antenna elements each comprises two dipole halves. The dipole halves of both dipole antenna elements comprise a dipole section and a coupling section, which are galvanically connected to each other and to a first end of a ground connection medium or a signal connection medium. The coupling sections each extend along the closest dipole section of the adjacent other first and/or second dipole antenna element, wherein a spacing gap is formed between a coupling side of the respective coupling section of the first and/or second dipole antenna element and the respective adjacent dipole section of the second and/or dipole antenna element.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: November 14, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dan Fleancu, Andreas Vollmer, Wolfgang Heyde
  • Publication number: 20220200168
    Abstract: An antenna arrangement comprises a dual-polarised turnstile antenna, which comprises a first and a second dipole antenna element, which are aligned perpendicular to one another. The first and second dipole antenna elements each comprises two dipole halves. The dipole halves of both dipole antenna elements comprise a dipole section and a coupling section, which are galvanically connected to each other and to a first end of a ground connection medium or a signal connection medium. The coupling sections each extend along the closest dipole section of the adjacent other first and/or second dipole antenna element, wherein a spacing gap is formed between a coupling side of the respective coupling section of the first and/or second dipole antenna element and the respective adjacent dipole section of the second and/or dipole antenna element.
    Type: Application
    Filed: March 20, 2020
    Publication date: June 23, 2022
    Inventors: Dan Fleancu, Andreas Vollmer, Wolfgang Heyde
  • Patent number: 11289796
    Abstract: The present invention relates to a circuit board arrangement including a circuit board, whose metallization comprises at least one coplanar stripline for supplying signals to a radiator, in particular a mobile communication radiator. In this circuit board arrangement, the circuit board comprises a field converter, which is electrically connected to the coplanar stripline and which conducts a coaxial field through at least one layer of the circuit board and converts it into the coplanar stripline field of the coplanar stripline.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: March 29, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Vollmer, Dan Fleancu
  • Patent number: 11217905
    Abstract: A dual-polarized crossed dipole (1) comprises a first and a second dipole antenna element (2, 3). Each dipole antenna element (2, 3) comprises two dipole halves (2a, 2b, 3a, 3b), each having an earth connector (4, 8), a signal connector (6, 10), a dipole earth wing (5, 9) and a dipole signal wing (7, 11). The signal connector (6) of the first dipole antenna element (2) runs parallel to the earth connector (4) of the first dipole antenna element (2), and the signal connector (10) of the second dipole antenna element (3) runs parallel to the earth connector (8) of the second dipole antenna element (3). The dipole signal wing (7) and the dipole earth wing (5) of the first dipole antenna element (2) run in opposite directions. The same applies to the dipole signal wing (11) and the dipole earth wing (9) of the second dipole antenna element (3). Each dipole half (2a, 2b, 3a, 3b) is of single-part design in each case.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 4, 2022
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dan Fleancu, Andreas Vollmer
  • Patent number: 11196178
    Abstract: Disclosed is a dual polarized horn radiator, in particular for a cellular radio base station, having a first polarization and a second polarization that are fed separately via a first hollow waveguide and a second hollow waveguide. In a first aspect one of the hollow waveguides runs in the direction of beam to its opening into the horn radiator and in so doing has a cross-section that extends in projection onto the aperture plane partially within and partially outside the aperture opening of the horn radiator. In a second aspect the two hollow waveguides run in the direction of beam to their openings into the horn radiator, with at least one of the hollow waveguides having a transformation section by which its polarization in the aperture plane is rotated with respect to the other hollow waveguide before it opens into the horn radiator.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: December 7, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dan Fleancu, Andreas Vollmer
  • Patent number: 11081800
    Abstract: The present disclosure relates to a dual-polarized antenna comprising a dipole radiator, a resonant cavity radiator and a reflector. The resonant cavity radiator is arranged below the reflector and radiates through a slot in the reflector, and the dipole radiator is arranged above the reflector, with a signal line and/or a carrier of the dipole radiator extending through the slot.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: August 3, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Vollmer, Maximilian Goettl, Dan Fleancu
  • Patent number: 10985439
    Abstract: A retaining and/or fastening frame (10) which is formed on or in a mobile-communications antenna (1) and/or on or in an electronic and/or filter module (4), or which can be fastened thereon, comprises a frame carrier (11) which is, or can be, fastened for example on a mobile-communications antenna (1). A movable plug-connector-receiving sleeve (12) comprises a housing wall (14), encircling a longitudinal axis (13) of the movable plug-connector-receiving sleeve (12) at least in part, and has two end sides (12a, 12b) located opposite one another. The encircling housing wall (14) surrounds an accommodating space (15), in which an antenna-side plug connector (9a) is, or can be, arranged. A connection port (6a) and/or a module-side plug connector (7a) of an electronic and/or filter module (4) can be introduced into the accommodating space (15).
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 20, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dan Fleancu, Maximilian Göttl
  • Publication number: 20200106195
    Abstract: A dual-polarized crossed dipole (1) comprises a first and a second dipole antenna element (2, 3). Each dipole antenna element (2, 3) comprises two dipole halves (2a, 2b, 3a, 3b), each having an earth connector (4, 8), a signal connector (6, 10), a dipole earth wing (5, 9) and a dipole signal wing (7, 11). The signal connector (6) of the first dipole antenna element (2) runs parallel to the earth connector (4) of the first dipole antenna element (2), and the signal connector (10) of the second dipole antenna element (3) runs parallel to the earth connector (8) of the second dipole antenna element (3). The dipole signal wing (7) and the dipole earth wing (5) of the first dipole antenna element (2) run in opposite directions. The same applies to the dipole signal wing (11) and the dipole earth wing (9) of the second dipole antenna element (3). Each dipole half (2a, 2b, 3a, 3b) is of single-part design in each case.
    Type: Application
    Filed: June 28, 2018
    Publication date: April 2, 2020
    Inventors: Dan FLEANCU, Andreas VOLLMER
  • Publication number: 20200006863
    Abstract: Disclosed is a dual polarized horn radiator, in particular for a cellular radio base station, having a first polarization and a second polarization that are fed separately via a first hollow waveguide and a second hollow waveguide. In a first aspect one of the hollow waveguides runs in the direction of beam to its opening into the horn radiator and in so doing has a cross-section that extends in projection onto the aperture plane partially within and partially outside the aperture opening of the horn radiator. In a second aspect the two hollow waveguides run in the direction of beam to their openings into the horn radiator, with at least one of the hollow waveguides having a transformation section by which its polarization in the aperture plane is rotated with respect to the other hollow waveguide before it opens into the horn radiator.
    Type: Application
    Filed: December 1, 2017
    Publication date: January 2, 2020
    Inventors: Dan FLEANCU, Andreas VOLLMER
  • Publication number: 20190221918
    Abstract: The present invention relates to a circuit board arrangement including a circuit board, whose metallization comprises at least one coplanar stripline for supplying signals to a radiator, in particular a mobile communication radiator. In this circuit board arrangement, the circuit board comprises a field converter, which is electrically connected to the coplanar stripline and which conducts a coaxial field through at least one layer of the circuit board and converts it into the coplanar stripline field of the coplanar stripline.
    Type: Application
    Filed: June 6, 2017
    Publication date: July 18, 2019
    Inventors: Andreas VOLLMER, Dan FLEANCU
  • Publication number: 20190207293
    Abstract: A retaining and/or fastening frame (10) which is formed on or in a mobile-communications antenna (1) and/or on or in an electronic and/or filter module (4), or which can be fastened thereon, comprises a frame carrier (11) which is, or can be, fastened for example on a mobile-communications antenna (1). A movable plug-connector-receiving sleeve (12) comprises a housing wall (14), encircling a longitudinal axis (13) of the movable plug-connector-receiving sleeve (12) at least in part, and has two end sides (12a, 12b) located opposite one another. The encircling housing wall (14) surrounds an accommodating space (15), in which an antenna-side plug connector (9a) is, or can be, arranged. A connection port (6a) and/or a module-side plug connector (7a) of an electronic and/or filter module (4) can be introduced into the accommodating space (15).
    Type: Application
    Filed: August 22, 2017
    Publication date: July 4, 2019
    Inventors: Dan FLEANCU, Maximilian GÖTTL
  • Patent number: 10297891
    Abstract: The present disclosure shows a high-frequency phase shifter assembly having at least two high-frequency phase shifters stacked above one another which are arranged in at least one housing, wherein at least one housing plate is provided between the high-frequency phase shifters in the stack; and wherein the high-frequency phase shifters each have a rotatably supported pick-up element which is electrically coupled to a feed line via a coupling point arranged in the region of its rotary axle; and wherein the pick-up elements of the high-frequency phase shifters are mechanically coupled for the synchronous adjustment of the high-frequency phase shifters. Provision is made in this respect that the mechanical coupling of the pick-up elements of the high-frequency phase shifters takes place via a coupling arrangement spaced apart from the rotary axles of the pick-up elements.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 21, 2019
    Assignee: KATHREIN SE
    Inventors: Dan Fleancu, Joerg Langenberg, Michael Thunn
  • Patent number: 10186748
    Abstract: An improved mobile radio antenna suited to radio-frequency connections has a base module that comprises a plurality of mounting sections that each contain an internally threaded hole. An attachment module has mounting sections with through-holes made therein. Spacers are used between the base module and the attachment module. An undercut is provided in the through-hole in the attachment module such that the diameter of the through-hole merges into the undercut with a greater diameter in the plug-in direction, or is provided in a second electrically conductive spacer that is positioned on the attachment module on the side that is opposite the first spacer, the second spacer having a spacer hole with an undercut that broadens in the plug-in direction.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: January 22, 2019
    Assignee: Kathrein SE
    Inventors: Dan Fleancu, Manfred Stolle
  • Publication number: 20170077587
    Abstract: An improved mobile radio antenna suited to radio-frequency connections has a base module that comprises a plurality of mounting sections that each contain an internally threaded hole. An attachment module has mounting sections with through-holes made therein. Spacers are used between the base module and the attachment module. An undercut is provided in the through-hole in the attachment module such that the diameter of the through-hole merges into the undercut with a greater diameter in the plug-in direction, or is provided in a second electrically conductive spacer that is positioned on the attachment module on the side that is opposite the first spacer, the second spacer having a spacer hole with an undercut that broadens in the plug-in direction.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 16, 2017
    Inventors: Dan FLEANCU, Manfred STOLLE
  • Publication number: 20160276745
    Abstract: The present disclosure shows a high-frequency phase shifter assembly having at least two high-frequency phase shifters stacked above one another which are arranged in at least one housing, wherein at least one housing plate is provided between the high-frequency phase shifters in the stack; and wherein the high-frequency phase shifters each have a rotatably supported pick-up element which is electrically coupled to a feed line via a coupling point arranged in the region of its rotary axle; and wherein the pick-up elements of the high-frequency phase shifters are mechanically coupled for the synchronous adjustment of the high-frequency phase shifters. Provision is made in this respect that the mechanical coupling of the pick-up elements of the high-frequency phase shifters takes place via a coupling arrangement spaced apart from the rotary axles of the pick-up elements.
    Type: Application
    Filed: March 14, 2016
    Publication date: September 22, 2016
    Inventors: Dan FLEANCU, Joerg LANGENBERG, Michael THUNN