| Patent Number |
Title Of Patent |
Date Issued |
| 7579995 |
Near field nulling antenna systems |
August 25, 2009 |
| An antenna system is provided. The antenna system comprises a first antenna with a first operating frequency and a second antenna with a second operating frequency. The second antenna has a first near field with a first near region in which the first antenna is disposed and a second |
| 7570133 |
Wideband passive amplitude compensated time delay module |
August 4, 2009 |
| A true time delay ("TTD") system with wideband passive amplitude compensation is provided. The TTD system includes an input switch, an output switch, a reference delay line disposed between the input switch and the output switch, and time delay lines disposed between the input switch |
| 7519324 |
Geosynchronous satellite constellation |
April 14, 2009 |
| A satellite communications system is described for increasing capacity through spectrum reuse by multiple satellites. The system includes a constellation of satellites traveling in a geosynchronous orbit, where the geosynchronous orbit defines a satellite track. The satellite track o |
| 7511666 |
Shared phased array cluster beamformer |
March 31, 2009 |
| A shared beamformer flexibly allocates beams among clusters of beams produced by phased array antenna apertures that are deployed on a satellite (or other type of platform). By sharing the beamformer among the beam clusters, if one beam cluster is not providing useful coverage, the b |
| 7392011 |
Method and system for flexibly distributing power in a phased array antenna system |
June 24, 2008 |
| A power system flexibly distributes power among phased array antenna apertures of a satellite (or other type of platform). By allocating the power provided by a power source among the apertures, if one aperture is not providing useful coverage (due to orientation, light traffic volume, |
| 7369085 |
Shared phased array beamformer |
May 6, 2008 |
| A shared beamformer flexibly allocates beams among phased array antenna apertures of a satellite (or other type of platform). By sharing the beamformer among the apertures, if one aperture is not providing useful coverage (due to orientation, traffic volume, signal frequency, signal |
| 7180447 |
Shared phased array beamformer |
February 20, 2007 |
| A shared beamformer flexibly allocates beams among phased array antenna apertures of a satellite (or other type of platform). By sharing the beamformer among the apertures, if one aperture is not providing useful coverage (due to orientation, traffic volume, signal frequency, signal |
| 7050019 |
Concentric phased arrays symmetrically oriented on the spacecraft bus for yaw-independent naviga |
May 23, 2006 |
| A concentric arrangement of multiple spacecraft antennas mounted symmetrically about the yaw axis of rotation or center of gravity of the spacecraft that provides the capability for spacecraft with multiple antennas to maneuver without introducing errors into navigation signals and w |
| 6738017 |
Modular phased array with improved beam-to-beam isolation |
May 18, 2004 |
| A modular phased array antenna provides a reduction in the error signals that are introduced into beam signals by electromagnetic coupling that is inexpensive and does not cause an increase in weight or in power consumption. A modular phased array antenna has irregular or random conn |
| 6703976 |
Scaleable antenna array architecture using standard radiating subarrays and amplifying/beamformi |
March 9, 2004 |
| A phased array antenna design that is modular and scaleable in terms of beam quantity, coverage area, and receive sensitivity/transmit EIRP. A modular array building block for an antenna array comprises: a plurality of antenna elements, each antenna element operable to receive and output |
| 6522643 |
Apparatus, method, and computer program products for cell-hopping satellite communications |
February 18, 2003 |
| An apparatus, method, and computer program product for assigning communication resources in a beam-hopping cellular communication system. The satellite has a multiple beam antenna that covers a number of cells that is greater than the number of available beams In a preferred embodime |
