Robert Dale Mathews

US Patent:

8552917, Oct 8, 2013

Filed:

Apr 28, 2010

Appl. No.:

12/769418

Inventors:

Daniel F. Mathews - San Gabriel CA, US
Parthasarathy Ramanujam - Torrance CA, US
Robert B. Mathews - Fullerton CA, US
Thomas M. Hikido - Torrance CA, US
Louis R. Fermelia - Redondo Beach CA, US
Gary J. Gawlas - Torrance CA, US

Assignee:

The Boeing Company - Chicago IL

International Classification:

H01Q 13/00

US Classification:

343779, 343781 R, 343781 P, 343781 CA, 343786

Abstract:

A method and system are disclosed for wide angle multibeam antennas. The method and system involve a multibeam antenna system for generating high performance multiple spot beams. In one or more embodiments, the multibeam antenna system includes an oversized antenna reflector and a plurality of antenna feeds. The oversized antenna reflector has its surface shape optimized from a normal parabolic shape in order to broaden and shape the reflected spot beams to improve antenna performance. In addition, the diameter of the oversized antenna reflector is greater than ((100*λ)/δ), where λ is the wavelength in inches and δ is the beam to beam spacing in degrees. In some embodiments, the ratio of the focal length of the oversized antenna reflector to the diameter of the oversized antenna reflector (F/D) is greater than 0. 7. In at least one embodiment, the system further includes an antenna sub-reflector.

US Patent:

8593957, Nov 26, 2013

Filed:

Feb 25, 2013

Appl. No.:

13/775566

Inventors:

Robert D. Mathews - Sunland CA, US
Gopalakrishnan Meempat - East Brunswick NJ, US
Sam Houston Parker - Cranbury NJ, US
Sarat Puthenpura - Berkeley Heights NJ, US
Ravi Raina - North Brunswick NJ, US

Assignee:

AT&T Intellectual Property I, L.P. - Reno NV

International Classification:

H04L 12/26

US Classification:

370230, 370252

Abstract:

A link in a communications network is provisioned with a particular bandwidth capacity determined as a function of a “sub-par customer data fraction. ” The sub-par data fraction is given by a) the amount of data transferred under sub-par condition divided by b) the total data transferred, where “sub-par condition” means that data is transferred below a given target bit rate.

US Patent:

20120112983, May 10, 2012

Filed:

Nov 10, 2010

Appl. No.:

12/943864

Inventors:

Robert Mathews - Sunland CA, US

International Classification:

H01Q 21/28

US Classification:

343893

Abstract:

A portable antenna structure that employs a plurality of antenna modules that collectively cover a venue and provide telecommunications services to customers within the venue, arranged to produce a plurality of beams that have non-overlapping regions, regions where adjacent beams overlap with each other, and collectively the beams fully cover the venue. Customers that are located at a spot in the venue where only one beam provides coverage are served by that beam, and customers that are located at a spot in the venue where two adjacent beams overlap are served by one of the beams, or both (depending on the technology used) and if appropriate they are handed off from one beam to the other beam in a conventional manner.

Address:

9400 Old Cedar Ave S APT 208, Minneapolis, MN 55425

VIN:

4UBAS0P2X71A74243

Make:

Toyota

Model:

Tacoma XtraCab V6 Manual

Year:

2007