Design of a subsurface radio communications systems using several types of distributed radiators

Author

Thatcher, Frank

Author_Institution

Frank Thatcher Associates Inc., San Francisco, CA, USA

fYear

1990

fDate

6-9 May 1990

Firstpage

152

Lastpage

155

Abstract

Design techniques used to satisfy underground radio communications requirements are discussed. The topics include operational requirements and functional design, propagation characteristics in the subsurface areas, test arrangement, test procedure and data, and analysis of the test data. The application discussed in typical of many industrial facilities where cost and performance are important considerations. A major portion of the study is dedicated to tests conducted to select the most practical radiating element used for the distributed antennas

Keywords

antennas; mobile radio systems; radiowave propagation; cost; data analysis; distributed antennas; distributed radiators; functional design; industrial facilities; operational requirements; performance; portable radios; propagation characteristics; subsurface radio communications systems; test arrangement; test data; test procedure; underground radio communications; Antennas and propagation; Concrete; Couplings; Planar waveguides; Radio communication; Radio frequency; Reflector antennas; Steel; Testing; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1990 IEEE 40th

Conference_Location

Orlando, FL

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1990.110312

Filename

110312