BRIAN CHOI PARK, DPM
Podiatry at Lomita Blvd, Torrance, CA

6366257, Apr 2, 2002

Nov 15, 2000

09/713114

Parthasarathy Ramanujam - Redondo Beach CA
Michael E. Pekar - La Mirada CA
David M. Kershner - Los Angeles CA
Brian M. Park - Torrance CA
Donald L. Davis - Lakewood CA

The Boeing Company - Seattle WA

H01Q 1300

343781P, 343755, 343761

The present invention discloses a method for generating multiple antenna beams and a system for generating multiple antenna beams. The system comprises a first reflector surface that has a primary and at least a first auxiliary surface, and a second reflector surface, and also comprises first, second, and third feed horns. The first feed horn illuminates the primary surface with radio frequency (RF) energy, the second feed horn illuminates the auxiliary surface with RF energy, and the third feed horn illuminates the second reflector surface with RF energy. The first feed horn and third feed horn are removed from an axis of symmetry of the first auxiliary surface. The method comprises illuminating a primary portion of a first reflector surface with radio frequency (RF) energy from a first feed horn, illuminating an auxiliary portion of the first reflector surface with RF energy from a second feed horn, illuminating a second reflector surface with RF energy from a third feed horn, wherein the first feed horn and third feed horn are removed from an axis of symmetry of the auxiliary portion of the first reflector surface.

6621461, Sep 16, 2003

Aug 9, 2000

09/636085

Parthasarathy Ramanujam - Redondo Beach CA
Brian M. Park - Torrance CA
Paul E. Guillaume - El Paso TX
Cameron Massey - Hawthorne CA

Hughes Electronics Corporation - El Segundo CA

H01Q 1914

343781R, 343909, 343753

A method for broadcasting, a signal, and an antenna system are disclosed. The antenna system comprises a feed horn and a reflector. The feed horn provides a radio frequency (RF) signal. The reflector is aligned with the feed horn and is illuminated by the feed horn, and comprises a reflective grid. The reflective grid lines are substantially parallel as viewed from a geographic location of a desired output beam from the antenna system. A method in accordance with the present invention comprises illuminating a reflector with an RF signal emanating from a feed horn, the feed horn being substantially located at a focal point of the reflector, wherein the reflector comprises a reflective grid, and reflecting the RF signal with the reflective grid, wherein lines of the reflective grid are substantially parallel as viewed from a geographic location of a desired output beam from the antenna system.

6628238, Sep 30, 2003

Nov 19, 2001

09/992259

Parthasarathy Ramanujam - Redondo Beach CA 90278
Albert E. Lyerly - Fullerton CA 92831-3024
Brian M. Park - Torrance CA 90505
Hussain Haddad - Los Angeles CA 90049
Laurston C. Wah - Manhatten Beach CA 90266

H01Q 1919

343781P, 343761

An antenna includes a feed generating a communication signal. A sub-reflector is positioned to reflect the communications signal to form a sub-reflective signal. A main reflector is positioned to reflect the sub-reflective signal. The sub-reflector has an elliptical rim.

6266024, Jul 24, 2001

Dec 23, 1998

9/222420

Parthasarathy Ramanujam - Redondo Beach CA
Brian M. Park - Torrance CA
Louis R. Fermelia - Redondo Beach CA
Vincent E. Cascia - Manhattan Beach CA

Hughes Electronics Corporation - El Segundo CA

H01Q 1300

343781CA

An antenna system having a rotatable and scannable reconfigurable shaped reflector with a movable feed system. The antenna system allows beam shapes to be rotated about an optimum axis and defocused while a spacecraft is in orbit in order to change a particular coverage pattern for the spacecraft.

6225964, May 1, 2001

Jun 9, 1999

9/328769

Louis Rudolph Fermelia - Redondo Beach CA
Parthasarathy Ramanujam - Redondo Beach CA
Brian M. Park - Torrance CA

Hughes Electronics Corporation - El Segundo CA

H01Q 1502, H01Q 1910

343909

An antenna system comprising a first reflector and a second reflector is disclosed. The first reflector reflects an incident signal from a signal source. The incident signal comprises a first signal having a first polarization and a second signal having a second polarization. The first reflector has a surface that reflects the first signal and the second signal. The second reflector receives the reflected incident signal from the first reflector and comprises a first reflective surface for reflecting the first signal and a second reflective surface for reflecting the second signal.

7411561, Aug 12, 2008

Mar 30, 2006

11/394032

John E. Baldauf - Redondo Beach CA, US
Eric D. Lee - Sherman Oaks CA, US
Brian M. Park - Torrance CA, US
Joel R. Dixon - Torrance CA, US

The Boeing Company - Chicago IL

H01Q 13/00

343781P, 343761, 343781 CA

In one embodiment, a gimbaled reflector antenna is provided that includes: a Dragonian antenna having a sub-reflector and a main reflector; a feed; a third reflector adapted to reflect a beam from the feed to the sub reflector; an azimuth gimbal adapted to rotate the Dragonian antenna with respect to the third reflector; and an elevation gimbal adapted to rotate the flat reflector with respect to the feed.