Title :
Diversity performance of dual-antenna handsets near operator tissue
Author :
Green, Bruce M. ; Jensen, Michael A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA
fDate :
7/1/2000 12:00:00 AM
Abstract :
This paper presents a computational and experimental study of the diversity performance of two dual-antenna handsets operating indoors in the 902-928 MHz industrial, scientific, and medical (ISM) band. Of particular interest is the effect of the operator tissue on the diversity operation. Key indicators of diversity gain such as branch mean effective gain (MEG) and envelope correlation coefficient are obtained from finite-difference time-domain (FDTD) method simulations as well as from experimental measurements in three different indoor environments. Diversity gain for the handsets is also measured directly. Reasonable agreement is observed between the experimental and simulated results, with both approaches indicating that while the tissue lowers the MEG of individual branches by 3-5 dB, it has little influence on the handset overall diversity performance
Keywords :
UHF antennas; antenna arrays; diversity reception; fading channels; finite difference time-domain analysis; indoor radio; land mobile radio; mobile antennas; multipath channels; 902 to 928 MHz; FDTD method simulation; ISM band; UHF; branch mean effective gain; diversity performance; dual-antenna handsets; envelope correlation coefficient; finite-difference time-domain method simulation; handset overall diversity performance; indoors; industrial scientific and medical band; operator tissue; Antennas and propagation; Computer industry; Diversity methods; Diversity reception; Fading; Finite difference methods; Gain measurement; Geometry; Telephone sets; Time domain analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
