公开(公告)号：US5708679A

公开(公告)日：1998-01-13

申请号：US305147

申请日：1994-09-13

Applicant: Roosevelt A. Fernandes ,  Kurt P. Krabbe ,  Haynes Ellis, Jr.

Inventor： Roosevelt A. Fernandes ,  Kurt P. Krabbe ,  Haynes Ellis, Jr.

IPC: G01S1/00 ,  G01S5/14 ,  G01S19/25 ,  H01Q3/14 ,  H01Q3/26 ,  H01Q21/00 ,  H01Q21/06 ,  H04B1/707 ,  H04B7/185 ,  H04B7/216 ,  H04B15/00

CPC classification number: H01Q21/0075 ,  H01Q21/062 ,  H01Q3/14 ,  H01Q3/267 ,  H04B1/707 ,  H04B7/18528 ,  H04B7/18578 ,  H04B7/216

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.

Abstract translation: 通信网络包括用于从多个远程终端发送和接收信息的多个小型集线器终端。 多个小型集线器终端中的一些，并且多个远程终端中的一些能够通过卫星通信装置彼此分别进行无线通信。 共同定位的终端是与至少一些小型集线器终端连接的硬线。 至少一些端子包括平面天线，其包括接地平面和形成相对于接地平面安装的平面阵列天线中的至少一个的基板。 平面阵列天线具有形成在基板上的多个间隔的偶极子以构成阵列，以及形成在连接间隔开的偶极子的基板上的传输线。 传输线用于连接到与通过天线的信号通信的终端的链路。 移动天线具有强制信号的光束转向透镜。 还提供了位于输电线路上的传感器，该传感器能够测量线路上的行波，并通过阵列天线通过KU，KA波段或L波段频率的卫星进行通信，从而将行波 便于传输线上的故障定位。

公开(公告)号：US6122261A

公开(公告)日：2000-09-19

申请号：US916613

申请日：1997-08-22

Applicant: Roosevelt A. Fernandes ,  Kurt P. Krabbe ,  Haynes Ellis, Jr.

Inventor： Roosevelt A. Fernandes ,  Kurt P. Krabbe ,  Haynes Ellis, Jr.

IPC: G01S1/00 ,  G01S5/14 ,  G01S19/25 ,  H01Q3/14 ,  H01Q3/26 ,  H01Q21/00 ,  H01Q21/06 ,  H04B1/707 ,  H04B7/185 ,  H04B7/216 ,  H04J13/00 ,  H04B15/00

CPC classification number: H01Q21/0075 ,  H01Q21/062 ,  H01Q3/14 ,  H01Q3/267 ,  H04B1/707 ,  H04B7/18528 ,  H04B7/18578 ,  H04B7/216

Abstract: A communication network includes 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.

Abstract translation: 通信网络包括用于从多个远程终端发送和接收信息的多个小型集线器终端。 多个小型集线器终端中的一些，并且多个远程终端中的一些能够通过卫星通信装置彼此分别进行无线通信。 共同定位的终端是与至少一些小型集线器终端连接的硬线。 至少一些端子包括平面天线，其包括接地平面和形成相对于接地平面安装的平面阵列天线中的至少一个的基板。 平面阵列天线具有形成在基板上的多个间隔的偶极子以构成阵列，以及形成在连接间隔开的偶极子的基板上的传输线。 传输线用于连接到与通过天线的信号通信的终端的链路。 移动天线具有强制信号的光束转向透镜。 还提供了位于输电线路上的传感器，该传感器能够测量线路上的行波，并通过阵列天线通过KU，KA波段或L波段频率的卫星进行通信，从而将行波 便于传输线上的故障定位。

公开(公告)号：US5379320A

公开(公告)日：1995-01-03

申请号：US29897

申请日：1993-03-11

Applicant: Roosevelt A. Fernandes ,  Kurt P. Krabbe

Inventor： Roosevelt A. Fernandes ,  Kurt P. Krabbe

IPC: G01S1/00 ,  G01S5/14 ,  G01S19/25 ,  H01Q3/14 ,  H01Q3/26 ,  H01Q21/00 ,  H01Q21/06 ,  H04B1/707 ,  H04B7/185 ,  H04B7/216 ,  H04L9/00

CPC classification number: H04B7/216 ,  H01Q21/0075 ,  H01Q21/062 ,  H01Q3/14 ,  H01Q3/267 ,  H04B1/707 ,  H04B7/18528 ,  H04B7/18578

Abstract: A satellite communication system between a hub terminal and remote terminals simultaneously uses two or more satellites for communication. Rapid signal acquisition for mobile terminals is achieved by incorporation of a Global Positioning System receiver to establish initial frequency and time references. High resolution time distribution is provided by use of spread spectrum coded signals. A combined Time Division Multiple Access/Code Multiplex architecture receives simultaneous signals of widely varying signal strengths. Rapid and numerous changes to the polling sequence is possible. The hub terminal incorporates two high directivity antennas each illuminating a separate geostationary satellite transponder with a spread spectrum coded signal, each orthogonal to the other. The remote terminals employ an antenna of sufficiently small aperture to enable simultaneous reception of both orthogonal transponder signals. Each remote terminal transmits one signal that illuminates both satellite transponders and is received separately by each hub terminal antenna. All transmissions are synchronized to a precision time frame and are spread spectrum encoded. Multiple remote terminals may transmit simultaneously using orthogonal codes. Block addressing reduces the data bandwidth of the hub terminal. The network architecture allows numerous blocks to be established, each block containing any number of remote terminals and each remote terminal may be assigned to be a member numerous blocks. A single command issued by the hub terminal to a particular block, thereby addresses the multiple remote terminals which are members of that block. In order to demodulate the data received from multiple remote terminals, the hub terminal generates a numerical database that fully represents the composite received signal. Iterative digital signal processing is performed in real-time to establish the code phase of each remote terminal. Initial processing of the database demodulates only strong signals. In an iterative manner, the successfully demodulated signals are subtracted from the database and processing is reperformed to extract the weaker signals.