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Title: Radio frequency communication system utilizing radiating transmission lines

Abstract

A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

Inventors:
 [1]
  1. (San Carlos, CA)
Issue Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
OSTI Identifier:
865198
Patent Number(s):
4476574
Assignee:
United States of America as represented by United States (Washington, DC) SLAC
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
radio; frequency; communication; utilizing; radiating; transmission; lines; tunnels; mines; buildings; shielded; locations; pair; 30; 31; extend; location; spaced; coextensive; relation; line; unidirectional; amplifier; 32; 33; interposed; therein; sense; opposite; amplifiers; coupling; loss; mobile; transceivers; 35; served; coupled; electromagnetic; wave; propagation; space; communicate; directly; range; magnetic wave; wave propagation; transmission lines; radio frequency; transmission line; frequency range; electromagnetic wave; radiating transmission; shielded location; /455/

Citation Formats

Struven, Warren C. Radio frequency communication system utilizing radiating transmission lines. United States: N. p., 1984. Web.
Struven, Warren C. Radio frequency communication system utilizing radiating transmission lines. United States.
Struven, Warren C. Sun . "Radio frequency communication system utilizing radiating transmission lines". United States. https://www.osti.gov/servlets/purl/865198.
@article{osti_865198,
title = {Radio frequency communication system utilizing radiating transmission lines},
author = {Struven, Warren C.},
abstractNote = {A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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