Telecommunications – Transmitter and receiver at separate stations – Short range rf communication
Patent
1991-04-05
1993-07-20
Pascal, Robert J.
Telecommunications
Transmitter and receiver at separate stations
Short range rf communication
455 551, 379 55, 333245, 343705, 343711, H04B 360, H04B 502
Patent
active
052300854
ABSTRACT:
Wireless electromagnetic communication between a primary transceiver and one or more secondary transceivers located within an enclosed structure may be effectuated by forming a multi-conductor electromagnetic transmission line within the structure. Communications are effectuated by utilizing the enclosing structure itself as one conductor in a multi-conductor transmission line. One or more other conductors are then placed within and insulated from the structure to complete the communications transmission line. A primary communications transceiver and a matched terminating load are connected to the ends of the transmission line to form a contained electromagnetic field. Use of a matched terminating load minimizes standing waves and provides for substantially constant electromagnetic field strength within the structure. Each secondary transceiver located within the contained electromagnetic field communicates with other secondary transceivers or the primary transceiver by inserting or extracting electromagnetic energy from the transmission line.
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E-Systems Inc.
Lee Benny T.
Meier Harold E.
Pascal Robert J.
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