Kevin N Le

US Patent:

6621465, Sep 16, 2003

Filed:

Feb 28, 2002

Appl. No.:

10/085756

Inventors:

Anthony Teillet - Flower Mound TX
Kevin Le - Arlington TX

Assignee:

Allen Telecom Group, Inc. - Solon OH

International Classification:

H01Q 2126

US Classification:

343797, 343853, 343821

Abstract:

An antenna ( ) having a plurality of unitary dipole antennas ( ) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas ( ) are fed by two stripline feed systems ( ). Each of these feed systems are separated above and extend over a groundplane ( ) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters ( ) in combination with a downtilt control lever ( ) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90Â upward to couple to the respective dipole antennas ( ).

US Patent:

6697029, Feb 24, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/086233

Inventors:

Anthony Teillet - Flower Mound TX
Kevin Le - Arlington TX

Assignee:

Andrew Corporation - Orland Park IL

International Classification:

H01Q 2126

US Classification:

343797, 343795, 343821, 343853

Abstract:

An antenna ( ) having a plurality of unitary dipole antennas ( ) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas ( ) are fed by two stripline feed systems ( ). Each of these feed systems are separated above and extend over a groundplane ( ) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters ( ) in combination with a downtilt control lever ( ) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90Â upward to couple to the respective dipole antennas ( ).

US Patent:

6717555, Apr 6, 2004

Filed:

Feb 28, 2002

Appl. No.:

10/085245

Inventors:

Anthony Teillet - Flower Mound TX
Kevin Le - Arlington TX

Assignee:

Andrew Corporation - Orland Park IL

International Classification:

H01Q 2126

US Classification:

343797, 343795, 343853, 343821

Abstract:

An antenna ( ) having a plurality of unitary dipole antennas ( ) formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas ( ) are fed by two stripline feed systems ( ). Each of these feed systems are separated above and extend over a groundplane ( ) and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters ( ) in combination with a downtilt control lever ( ) are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90Â upward to couple to the respective dipole antennas ( ).

US Patent:

6924776, Aug 2, 2005

Filed:

Dec 16, 2003

Appl. No.:

10/737214

Inventors:

Kevin Le - Arlington TX, US
Louis J. Meyer - Shady Shores TX, US

Assignee:

Andrew Corporation - Orland Park IL

International Classification:

H01Q011/10

US Classification:

3437925, 343810, 343818, 343797, 343846

Abstract:

A dual polarized variable beam tilt antenna () having a plurality of offset element trays () each supporting pairs of dipole elements () to orient the dipole element pattern boresight at a downtilt. The maximum squint level of the antenna is a consistent downtilt off of boresight and which is at the midpoint of the antenna tilt range. The antenna provides a high roll-off radiation pattern through the use of Yagi dipole elements configured in this arrangement, having a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, and is operable over an expanded frequency range.

US Patent:

7075497, Jul 11, 2006

Filed:

Apr 5, 2004

Appl. No.:

10/818137

Inventors:

Anthony Teillet - Flower Mound TX, US
Kevin Le - Arlington TX, US

Assignee:

Andrew Corporation - Orland Park IL

International Classification:

H01Q 21/26

US Classification:

343797, 343795, 343821, 343853

Abstract:

An antenna () having a plurality of unitary dipole antennas () formed by folding a stamped piece of sheet metal. Each of the unitary dipole antennas () are fed by two stripline feed systems (). Each of these feed systems are separated above and extend over a groundplane () and are separated by an air dielectric to minimize intermodulation (IM). Phase shifters () in combination with a downtilt control lever () are slidably adjusted beneath the respective dividing portions of the stripline feed system to adjust signal phase and achieve a uniform beam tilt having uniform and balanced side lobes. These stripline feed systems can also be formed from stamped sheet metal and which have distal ends bent 90 upward to couple to the respective dipole antennas ().

US Patent:

7173572, Feb 6, 2007

Filed:

Sep 12, 2003

Appl. No.:

10/660980

Inventors:

Anthony Teillet - Flower Mound TX, US
Michael F. Bonczyk - Springtown TX, US
Igor Timofeev - Dallas TX, US
Kevin Le - Arlington TX, US
T. Huy Cao - Dallas TX, US

Assignee:

Andrew Corporation - Orland Park IL

International Classification:

H01Q 21/10

US Classification:

343810, 343795, 343797

Abstract:

A dual band, dual pole, variable downtilt, 90 degree azimuth beamwidth antenna (). The antenna includes dipole elements () forming both a PCS band and a cellular band antenna. The PCS band antenna has two sections disposed each side of the cellular band antenna, the elements of each being positioned 90 with respect to the other. A microstrip feed network formed upon a common PC board () feeds the respective dipole elements, and has serpentine portions with a corresponding dielectric member slideable thereover to establish the phase of the associated dipole antennas and achieve a linear downtilt of the respective antenna array. A slide rod adjustment assembly () provides unitary movement of the dielectric members between two different slide rods. These dielectric members are secured with adhesive to the respective slide rods to achieve good dielectric control and no use of hardware. The radiating dipole elements are capacitively coupled to each microstrip, and are also capacitively associated reflector element.

US Patent:

7358922, Apr 15, 2008

Filed:

Apr 13, 2005

Appl. No.:

11/104986

Inventors:

Kevin Le - Arlington TX, US
Louis J. Meyer - Shady Shores TX, US
Pete Bisiules - LaGrange Park IL, US

Assignee:

CommScope, Inc. of North Carolina - Hickory NC

International Classification:

H01Q 21/26
H01Q 21/00
H01Q 1/48

US Classification:

343797, 343810, 343846

Abstract:

A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.

US Patent:

7535430, May 19, 2009

Filed:

Dec 6, 2007

Appl. No.:

11/999679

Inventors:

Kevin Le - Arlington TX, US
Louis J. Meyer - Shady Shores TX, US
Pete Bisiules - LaGrange Park IL, US

Assignee:

Andrew LLC - Hickory NC

International Classification:

H01Q 21/26
H01Q 21/00
H01Q 19/10

US Classification:

343797, 343810, 343818

Abstract:

A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 degree dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.