Title :
FDTD predictions and measurements of car effects on portable telephone received signal levels
Author :
Schuster, J. ; Luebbers, R. ; Riazi, H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In order to determine the signal attenuation that might be expected when using a portable telephone inside an automobile, the signal attenuation for a variety of incidence angles and antenna locations inside a car with one or two passengers was measured at 1920 MHz. In addition to the measurements, finite difference time domain (FDTD) calculations of the signal attenuation were also made. The FDTD calculations and measured signal attenuation were compared, and agreed well with one another. The FDTD predictions were then analyzed to provide statistical summaries of the signal attenuation characteristics for different incidence angles, number of passengers, windows up/down, and receiving antenna locations and orientations.
Keywords :
UHF radio propagation; automobiles; cellular radio; finite difference time-domain analysis; land mobile radio; mobile antennas; mobile radio; radio reception; receiving antennas; 1920 MHz; FDTD predictions; antenna location; automobile; car effects; finite difference time domain calculations; incidence angles; passengers; portable telephone received signal levels; signal attenuation; windows; Antenna measurements; Antennas and propagation; Attenuation measurement; Finite difference methods; Frequency estimation; Frequency measurement; Polarization; Receiving antennas; Telephony; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549628
