Radiocommunication system for confined spaces

Details Radiocommunication system for confined spaces Radiocommunication system for confined spaces

1976-09-30

1979-05-01

Gensler, Paul L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

325 51, 333237, H04B 700

Patent

active

041526481

ABSTRACT:
Radioelectric signals transmitted by a transmission line in the form of a sheathed cable having radiating sections whose length is chosen as a function of the wavelength in order to impart a directivity to their radial radiation or maximize the excitation of the monofilar mode in the downstream direction in relation to the transmitter.

REFERENCES:
patent: 3691488 (1972-09-01), HoHum, Jr.
patent: 3735293 (1973-05-01), Breitenbach
patent: 3781725 (1973-12-01), Yoshida et al.
patent: 3947834 (1976-03-01), Gershberg et al.
DeKeyser et al., Radiocommunication and Control in Mines and Tunnels, Electronics Letters, 26 Nov. 1970, vol. 6, No. 24.

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