Anthony J Demarco

US Patent:

20210266213, Aug 26, 2021

Filed:

May 6, 2021

Appl. No.:

17/313942

Inventors:

- Irvine CA, US
Igor Timofeev - Dallas TX, US
Leonid Matytsine - Irvine CA, US
Anthony DeMarco - Leadville CO, US

International Classification:

H04L 27/26
H01Q 1/22
H01Q 3/14
H01Q 3/24
H01Q 3/30
H01Q 19/06
H01Q 25/00
H01Q 1/24

Abstract:

This application proposes multi-beam antenna systems using spherical lens are proposed, with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band multi-beam solutions (with wideband operation, 40%+, in each band) are achieved by creating dual-band radiators movable on the track around spherical lens and by placing of lower band radiators between spherical lenses. By using of secondary lens for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved by special selection of phase shift and rotational angle of radiators. Resultantly, a wide beam tilt range (0-40 degree) is realized in proposed multi-beam antenna systems. Each beam can be individually tilted. Based on proposed single- and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with interference reduction.

US Patent:

20200195481, Jun 18, 2020

Filed:

Feb 20, 2020

Appl. No.:

16/796841

Inventors:

- Irvine CA, US
Igor Timofeev - Dallas TX, US
Leonid Matytsine - Irvine CA, US
Anthony DeMarco - Leadville CO, US

International Classification:

H04L 27/26
H01Q 1/24
H01Q 25/00
H01Q 19/06
H01Q 3/30
H01Q 3/24
H01Q 3/14
H01Q 1/22

Abstract:

This application proposes multi-beam antenna systems using spherical lens are proposed, with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band multi-beam solutions (with wideband operation, 40%+, in each band) are achieved by creating dual-band radiators movable on the track around spherical lens and by placing of lower band radiators between spherical lenses. By using of secondary lens for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved by special selection of phase shift and rotational angle of radiators. Resultantly, a wide beam tilt range (0-40 degree) is realized in proposed multi-beam antenna systems. Each beam can be individually tilted. Based on proposed single- and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with interference reduction.

US Patent:

20190173163, Jun 6, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264629

Inventors:

- Irvine CA, US
Igor Timofeev - Dallas TX, US
Leonid Matytsine - Irvine CA, US
Anthony DeMarco - Leadville CO, US

International Classification:

H01Q 1/24
H01Q 25/00
H01Q 19/06
H01Q 1/22
H01Q 3/24
H01Q 3/14
H01Q 3/30

Abstract:

This application proposes multi-beam antenna systems using spherical lens are proposed, with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band multi-beam solutions (with wideband operation, 40%+, in each band) are achieved by creating dual-band radiators movable on the track around spherical lens and by placing of lower band radiators between spherical lenses. By using of secondary lens for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved by special selection of phase shift and rotational angle of radiators. Resultantly, a wide beam tilt range (0-40 degree) is realized in proposed multi-beam antenna systems. Each beam can be individually tilted. Based on proposed single- and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with interference reduction.

US Patent:

20190165455, May 30, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264652

Inventors:

- Irvine CA, US
Igor Timofeev - Dallas TX, US
Leonid Matytsine - Irvine CA, US
Anthony DeMarco - Leadville CO, US

International Classification:

H01Q 1/24
H01Q 3/24
H01Q 1/22
H01Q 3/14
H01Q 3/30
H01Q 25/00
H01Q 19/06

Abstract:

This application proposes multi-beam antenna systems using spherical lens are proposed, with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band multi-beam solutions (with wideband operation, 40%+, in each band) are achieved by creating dual-band radiators movable on the track around spherical lens and by placing of lower band radiators between spherical lenses. By using of secondary lens for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved by special selection of phase shift and rotational angle of radiators. Resultantly, a wide beam tilt range (0-40 degree) is realized in proposed multi-beam antenna systems. Each beam can be individually tilted. Based on proposed single- and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with interference reduction.

US Patent:

20190027823, Jan 24, 2019

Filed:

Jan 10, 2018

Appl. No.:

15/867393

Inventors:

- Irvine CA, US
Igor Timofeev - Dallas TX, US
Leonid Matytsine - Irvine CA, US
Anthony DeMarco - Leadville CO, US

International Classification:

H01Q 1/52
H01Q 21/06
H01Q 19/06
H01Q 5/30
H01Q 21/00
H01Q 19/10
H01Q 3/36

Abstract:

This application proposes multi-beam antenna systems using spherical lens with high isolation between antenna ports and compatible to 2×2, 4×4, 8×8 MIMO transceivers. Several compact multi-band, multi-beam solutions (with wideband operation, 40%+, in each band) are achieved by creating dual-band radiators movable on a track around one or more spherical lenses and by placing lower band radiators between spherical lenses. By using secondary lenses for high band radiators, coupling between low band and high band radiators is reduced. Beam tilt range and side lobe suppression are improved through phase shifting and/or a rotational angle of radiators. A wide beam tilt range (0-40 degree) can be achieved via the proposed multi-beam antenna systems. Each beam can be independently tilted. Based on proposed single and multi-lens antenna solutions, cell coverage improvements and stadium tribune coverage optimization are also achieved, together with a reduction in interference.