Indoor ISM band multipath fading: frequency and antenna diversity
Indoor ISM band multipath fading: frequency and antenna diversity
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室内 ISM 频段多径衰落：频率和天线分集
DOI：
10.1109/apwc.1998.730626
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Y. Rahmat
中科院分区：
文献类型：
--
作者：
J. Colburn;M. Jensen;Y. Rahmat
给出了室内ISM（902-928 MHz）信道的频率衰落特性。这包括衰落的频率依赖性的曲线图和相关带宽的计算。最后，三个新的双天线配置的ISM波段无线收发器手机的分集性能的测量。这些天线的几何形状的分集性能进行评估，通过测量的功率相关系数的信号接收到的两个天线位于手机上。为了评估在这些实验中使用的测量装置的功能，从两个偶极天线与各种分离的接收信号的相关性进行测量，理论计算和先前测量的包络相关系数数据是可用的。相当大的努力也是针对从所观察到的信号电平的快衰落信息的提取，其效果进行了详细说明。
The frequency fading characterization of the indoor ISM (902-928 MHz) channel are presented. This includes plots of the frequency-dependence of the fading and calculations of the correlation bandwidth. Finally, the measured diversity performance of three novel dual antenna configurations proposed for an ISM band wireless transceiver handset are presented. The diversity performance of these antenna geometries is assessed by measuring the power correlation coefficient of the signal received over each of the two antennas located on the handset. To evaluate the functionality of the measuring apparatus used in these experiments, the correlations of the received signal from two dipole antennas with various separations are measured, for which theoretically computed and previously measured envelope correlation coefficient data is available. Considerable effort is also directed at extraction of the fast fading information from the observed signal level, and its effect is detailed.