Robert Kenoun

US Patent:

6611691, Aug 26, 2003

Filed:

Dec 24, 1998

Appl. No.:

09/219561

Inventors:

Guangping Zhou - Lake Zurich IL
Michael J. Kuksuk - Palatine IL
Robert Kenoun - Palatine IL
Zafarul Azam - Barrington IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 138

US Classification:

455550, 455 83, 455 73, 455553, 343709

Abstract:

A novel retractable antenna which enables dual-band operation in two different positions of the antenna is described. Further, the novel retractable antennas are couple to a variety matching circuit arrangements according to various embodiments of the present disclosure to eliminates the use of electrical or mechanical switching of two different matching circuits.

US Patent:

6618019, Sep 9, 2003

Filed:

May 24, 2002

Appl. No.:

10/155206

Inventors:

Robert Kenoun - Palatine IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 2100

US Classification:

343725, 343702, 343893, 343728

Abstract:

An antenna adapted to operate in multiple frequency bands includes a first conductive loop element having a commonly driven electrical connection at both ends. The first conductive element is resonant at a first frequency. An electrical feed point is located at the commonly driven electrical connection of the first conductive element. A second conductive element includes a straight portion and a helical portion. The straight portion being is coupled to the electrical feed point and the helical portion being is located distally from the feed point. The second conductive element being resonant at a second frequency. This commonly driven loop provides for a wider bandwidth and allows for a more compact multi-band antenna.

US Patent:

6836249, Dec 28, 2004

Filed:

Oct 22, 2002

Appl. No.:

10/277593

Inventors:

Robert Kenoun - Palatine IL
Narendra Pulimi - Cary IL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 138

US Classification:

343700MS, 343702, 343850

Abstract:

An antenna assembly for a mobile communication device. The antenna assembly can include a RF connection feed point and a planar radiating element including a conductive area split by a nonconductive gap which divides the planar radiating element into a first arm having an end coupled to the RF connection feed point and a second arm having an end coupled to the RF connection feed point. The antenna assembly can also include a first connection point coupled to the opposite end of the first arm from the RF connection feed point, the first connection point being selectively coupled to an impedance.

US Patent:

7265726, Sep 4, 2007

Filed:

Sep 26, 2005

Appl. No.:

11/235283

Inventors:

Robert Kenoun - Palatine IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01Q 21/00

US Classification:

343725, 343700 MS, 343726, 343866

Abstract:

A multi band antenna system () and a wireless communication device are disclosed. The multi band antenna system provides coverage over multiple frequency bands. The multi band antenna system comprises a ground surface, a first conductor (), a second conductor (), a common feed conductor () coupled to the first conductor and the second conductor, and a ground conductor () coupled to the first conductor and the second conductor. The first conductor has a first physical length operationally equal to a half wavelength in a first RF band and operationally equal to a full wavelength in a second RF band. The second conductor has a second physical length operationally equal to a half wavelength in a third RF band.

US Patent:

7308291, Dec 11, 2007

Filed:

Dec 15, 2004

Appl. No.:

11/013008

Inventors:

Robert Kenoun - Palatine IL, US
McKay R. Johnson - Chicago IL, US

Assignee:

Motorola Inc. - Schaumburg IL

International Classification:

H04B 1/38

US Classification:

4555757, 343702

Abstract:

An antenna () for sending and receiving signals in a plurality of frequency bands generates a plurality of resonances in the plurality of frequency bands and includes a first radiating element () that generates a first resonance in a first frequency band, a second radiating element (), coupled to and extending at an angle from the first radiating element (), that generates a second resonance in the first frequency band, and a third radiating element (), coupled to and extended at an angle from the first radiating element (). A capacitive coupling between the second radiating element () and the third radiating element () generates a loop with a third resonance in the first frequency band, and the third radiating element () generates a fourth resonance in a second frequency band independent of the loop at the second frequency band.

US Patent:

7415296, Aug 19, 2008

Filed:

Jun 29, 2007

Appl. No.:

11/771017

Inventors:

Robert Kenoun - Palatine IL, US
McKay R. Johnson - Chicago IL, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 1/38

US Classification:

4555757, 343700 MS

Abstract:

An antenna for sending and receiving signals in a plurality of frequency bands generates a plurality of resonances in the plurality of frequency bands and includes a first set of radiating elements () that generates at least one resonance in a first frequency band, and a second set of radiating elements () that generates at least one resonance in a second frequency band. At least one resonance is generated in a capacitive loop that exists at certain frequencies between at least two radiating elements belonging to a combination of the first set and the second set of radiating elements.

US Patent:

7925319, Apr 12, 2011

Filed:

Oct 29, 2007

Appl. No.:

11/926821

Inventors:

Robert Kenoun - Palatine IL, US
McKay R. Johnson - Chicago IL, US

Assignee:

Motorola Mobility, Inc. - Libertyville IL

International Classification:

H04M 1/00

US Classification:

4555757, 4555521, 455272, 343745

Abstract:

An wireless communication device with an antenna () for sending and receiving signals in a plurality of frequency bands generates a plurality of resonances in the plurality of frequency bands and includes a first radiating element () that generates a first resonance in a first frequency band, a second radiating element (), coupled to and extending at an angle from the first radiating element (), that generates a second resonance in the first frequency band, and a third radiating element (), coupled to and extended at an angle from the first radiating element (). A capacitive coupling between the second radiating element () and the third radiating element () generates a loop with a third resonance in the first frequency band, and the third radiating element () generates a fourth resonance in a second frequency band independent of the loop at the second frequency band.

US Patent:

20130093636, Apr 18, 2013

Filed:

Oct 17, 2011

Appl. No.:

13/274910

Inventors:

Robert Kenoun - Sunnyvale CA, US

International Classification:

H01Q 9/04

US Classification:

343749

Abstract:

A broad-band, multi-band antenna. The antenna includes a ground terminal and a feed terminal, an elongated inductor, a first inductive element electrically coupled between the ground terminal and a first extremity of the elongated inductor, a capacitive element in parallel connection with the first inductive element, and a second inductive element electrically coupled between a second extremity of the elongated inductor and the feed terminal.