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首页> 外文期刊>Applied Computational Electromagnetics Society journal >On and Off-Body Radio Channel Performance of a Dual Band and Dual Mode Antenna
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On and Off-Body Radio Channel Performance of a Dual Band and Dual Mode Antenna

机译：双频和双模天线的上下体无线电信道性能

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摘要

In this paper, measurement results of on-body radio propagation channels at 2.45 GHz and off-body radio propagation channels at 1.9 GHz using dual band and dual mode (DBDM) antenna are presented. The proposed antenna works at two different frequencies with different radiation modes. Experiments are performed first in the chamber and then in an indoor environment. The path loss has been characterized for ten different on-body radio channels at 2.45 GHz. Five off-body radio channels are studied at 1.9 GHz. The path loss was modeled as a function of distance for on-body radio propagation at 2.45 GHz and off-body radio propagation at 1.9 GHz. For on-body propagation, the path loss exponent is noticed to be 2.48 and 2.22 in the camber and sensor laboratory, respectively. For off-body radio propagation case, the path loss exponent is noticed to be 1.27. The proposed antenna shows very good on-body and off-body radio propagation channel performance.
机译：本文介绍了使用双频带和双模（DBDM）天线在2.45 GHz上的人体无线电传播信道和在1.9 GHz上的体外无线电传播信道的测量结果。所提出的天线在具有不同辐射模式的两个不同频率下工作。首先在室内进行实验，然后在室内环境中进行实验。路径损耗已针对2.45 GHz下的十个不同的人体无线信道进行了表征。在1.9 GHz下研究了五个体外无线电信道。路径损耗被建模为距离的函数，用于在2.45 GHz的人体无线电传播和在1.9 GHz的体外无线电传播。对于人体传播，在外倾角和传感器实验室中，路径损耗指数分别为2.48和2.22。对于离体无线电传播情况，路径损耗指数为1.27。所提出的天线显示出非常好的人体和体外无线电传播信道性能。

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