Title :
Design of a subsurface radio communications systems using several types of distributed radiators
Author_Institution :
Frank Thatcher Associates Inc., San Francisco, CA, USA
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;
Conference_Titel :
Vehicular Technology Conference, 1990 IEEE 40th
Conference_Location :
Orlando, FL
DOI :
10.1109/VETEC.1990.110312
