Radio frequency communication system utilizing radiating transmission lines
- San Carlos, CA
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.
- Research Organization:
- Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
- DOE Contract Number:
- AC03-76SF00515
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4476574
- OSTI ID:
- 865198
- Country of Publication:
- United States
- Language:
- English
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30
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32
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mines
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opposite
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space
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