Hitless ultra small aperture terminal satellite communication ne

Details Hitless ultra small aperture terminal satellite communication ne Hitless ultra small aperture terminal satellite communication ne

1994-09-13

1998-01-13

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

343700MS, 343795, H04B 1500

Patent

active

057086796

ABSTRACT:
A communication network comprises multiple mini-hub terminals for transmitting and receiving information from multiple remote terminals. Some of the multiple mini-hub terminals, and some of the multiple remote terminals are capable of wireless communication respectively with each other through satellite communication means. A co-located terminal is hard wire connected with at least some of the mini-hub terminals. At least some of the terminals includes a flat antenna comprising a ground plane and a substrate forming at least one in flat array antenna mounted relative to the ground plane. The flat array antenna has multiple spaced dipoles formed on the substrate to constitute the array, and a transmission line formed on the substrate connecting the spaced dipoles. The transmission line is for connection with a link to a terminal with which communication is to be affected by signals through the antenna. A mobile antenna has beam steering lenses for forcing the signal. Also provided are sensors located on power transmission lines, the sensor being capable of measuring travelling waves on the lines, and communicating via an array antennal through a satellite at KU, KA-band or L-band frequencies, characteristics of the travelling wave thereby to facilitate fault location on the transmission lines.

REFERENCES:
patent: 4071846 (1978-01-01), Oltman
patent: 4808916 (1989-02-01), Smith-Vaniz
patent: 4926189 (1990-05-01), Zaghlpul et al.
patent: 4943811 (1990-07-01), Alden et al.
patent: 4979170 (1990-12-01), Gilhousen
patent: 5455594 (1995-10-01), Blasing et al.

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