Randell Olsen - Carlsbad CA, US Louis Slaughter - Weston MA, US Chester Phillips - Germantown MD, US Paul Johnson - Kihei HI, US John Lovberg - San Diego CA, US Kenneth Tang - Alpine CA, US George Houghton - San Diego CA, US Vladimir Kolinko - San Diego CA, US
International Classification:
H04H001/00
US Classification:
455/003050, 455/562000, 455/561000
Abstract:
A communication network including a point-to-point, wireless, millimeter wave trunk line communications link at high data rates in excess of 1 Gbps. This link is combined with a local network which includes at least one multi-beam antenna to provide high speed digital data communication for multiple users. In preferred embodiments the network also includes Ethernet service to additional users. In these preferred embodiments many or most of these multiple users are temporary users such as participants at a conference. In a preferred embodiment, a trunk line communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same spectrum.
Louis Slaughter - Weston MA, US Chester Phillips - Germantown MD, US Paul Johnson - Kihei HI, US Randall Olsen - Carlsbad CA, US John Lovberg - San Diego CA, US Kenneth Tang - Alpine CA, US George Houghton - San Diego CA, US Vladimir Kolinko - San Diego CA, US
International Classification:
H04B001/38
US Classification:
455/073000, 455/500000
Abstract:
A communication network including a point-to-point, wireless, millimeter wave trunk line communications link at high data rates in excess of 1 Gbps. This link is combined with a local network that includes a fixed wireless network to provide high speed digital data communication for users. In preferred embodiments the network also include Ethernet service to additional users. In these preferred embodiments many or most of these large number of users are temporary users such as participants at a conference. In a preferred embodiment, a trunk line communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same spectrum. In a preferred embodiment, the first and second spectral ranges are 92.3-93.2 GHz and 94.1-95.0 GHz and the half power beam width is about 0.36 degrees or less. In this preferred embodiment, the local network uses Gigabit Ethernet hardware to provide data communication among hotels and conference rooms at 1 gigabits per second and IEEE standard 802.11b equipment to provide communication among a large number of users at 10 to 100 Mbps. Preferred applications of this invention include multi-location conferences, such as conferences spread over several hotels.
Wireless Communication Network With Tracking Flat-Panel Antenna
Chester Phillips - Germantown MD, US Paul Johnson - Kihei HI, US Randall Olsen - Carlsbad CA, US John Lovberg - San Diego CA, US Kenneth Tang - Alpine CA, US George Houghton - San Diego CA, US Vladimir Kolinko - San Diego CA, US
International Classification:
H04B007/00
US Classification:
455/500000, 455/269000
Abstract:
A point-to-point, wireless, millimeter wave communications links equipped with tracking antennas to maintain pencil beam contact between the links. In a preferred embodiment the antennas are flat panel tracking antennas and the communication links operate within the 92 to 95 GHz portion of the millimeter spectrum and provides data transmission rates in excess of 155 Mbps. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same spectrum. In a preferred embodiment the first and second spectral ranges are 92.3-93.2 GHz and 94.1-95.0 GHz and the half power beam width is about 0.36 degrees or less.
Sonet Capable Millimeter Wave Communication System
Louis Slaughter - Weston MA, US Randall Olsen - Carlsbad CA, US Chester Phillips - Germantown MD, US Paul Johnson - Kihei HI, US John Lovberg - San Diego CA, US Kenneth Tang - Alpine CA, US George Houghton - San Diego CA, US Vladimir Kolinko - San Diego CA, US Ryan Mooney - Kihei HI, US
International Classification:
H04Q007/00 H04B010/00 H04Q007/24
US Classification:
359/172000, 370/338000, 370/328000
Abstract:
A point-to-point, wireless, millimeter wave trunk line communications link at high data rates in excess of 1 Gbps and at ranges of several miles during normal weather conditions to connect a local communication network through a SONET aggregation unit to a high speed fiber-optics network. In a preferred embodiment a trunk line communication link operates within the 92 to 95 GHz portion of the millimeter spectrum. A first transceiver transmits at a first bandwidth and receives at a second bandwidth both within the above spectral range. A second transceiver transmits at the second bandwidth and receives at the first bandwidth. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of transceivers will be able to simultaneously use the same spectrum.
Communication System With Multi-Beam Communication Antenna
Randall Olsen - Carlsbad CA, US Chester Phillips - Germantown MD, US John Lovberg - San Diego CA, US Kenneth Tang - Alpine CA, US Vladimir Kolinko - San Diego CA, US
International Classification:
H04B007/00
US Classification:
455/562000, 455/272000
Abstract:
A wireless cellular communication system in which cellular base stations utilize multi-beam antenna to communicate with a large number of users. Each of the base station beams is a narrow beam of less than 10 degrees permitting reuse of available spectrum many times. A preferred antenna is described which broadcasts about 12 simultaneous beams, each about 5 degree, the 12 beams together covering a fan arc of about 60 degrees with the beams overlapping somewhat but interference is avoided by having adjacent beams broadcast at different frequencies within an authorized broadcast bandwidth. Six antennae mounted in a hexagonal manner thus cover a 360-degree azimuthal range. Preferably, users of the system communicate with the base station using a single narrow beam antenna directed at the base station. Since all beam are narrow beams many base stations may be located in the same cellular region permitting more than an order of magnitude increase in the utilization of available bandwidth and permitting a huge increase in bandwidth per customer. In a preferred embodiment the base stations communicate with a central office via a narrow-beam millimeter wave trunk line. The transceivers are equipped with antennas providing beam divergence small enough to ensure efficient spatial and directional partitioning of the data channels so that an almost unlimited number of point-to-point transceivers will be able to simultaneously use the same millimeter wave spectrum.
Chester C. Phillips - Rockville MD William H. Zinger - Columbia MD Robert F. Platte - Laurel MD Melrose M. Jesurun - Silver Spring MD Dennis H. Matthias - Columbia MD
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01S 740
US Classification:
343 177
Abstract:
A test set for an amplifier or other electronic device in which a waveform enerator furnishes a modulated RF signal to the item under test. Sensors extract samples of the RF signal at the item's input and output. A detector-mixer network compares and processes the input and output sample signals and produces signals at its output which are indicative of the phase distortion and amplitude distortion introduced by the item. The phase and amplitude distortion signals are sampled and held for each modulating signal pulse and are then processed to compile statistical data regarding the item's performance.
Chester C. Phillips - Columbia MD Shiow-Hwa Lin - San Diego CA
Assignee:
Thermo Electron Technologies Corp. - San Diego CA
International Classification:
H01S 319
US Classification:
372 44
Abstract:
A beam of radiation radiates in sequence an array of semi-conductor switches at an extremely rapid rate. Electron-hole pairs created by radiation permit the semiconductor switches to conduct electric current for a very brief period of time.
Brett A. Spivey - Encinitas CA Paul A. Johnson - San Diego CA Alex Shek - San Diego CA Chester Phillips - Columbia MD
Assignee:
Thermo Electron Technologies Corp. - San Diego CA
International Classification:
G01S 302
US Classification:
342179
Abstract:
A camera system in which microwave radiation from objects in a field-of-view is collected by an antenna having a beam direction which is a function of the beam frequency. The collected radiation is analyzed to produce an image of the objects in the field-of-view. In a simple embodiment of the invention a one dimensional image is produced. This one dimensional image can be converted to a two dimensional image by rotating the camera system or mounting the camera on a moving platform. In a preferred embodiment of the present invention the microwave radiation collected by the antenna is converted into electronic acoustic signals which sets up a diffraction pattern in a Bragg cell to diffract a laser beam which is focused on a television camera to produce one dimensional image of the field-of-view. The antenna can be scanned to produce a two dimensional image. In another preferred embodiment an array of antennas and a multi-channel Bragg cell is used to produce a two dimensional real time image.