Transmit and receive array gain of uniform linear arrays of isotrops
Transmit and receive array gain of uniform linear arrays of isotrops
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各向同性均匀线性阵列的发射和接收阵列增益
DOI：
10.1109/sarnof.2009.4850279
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
J. Nossek
中科院分区：
文献类型：
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作者：
M. Ivrlac;J. Nossek
在信号处理和信息论文献中，通常都假设天线阵列的阵列增益随着天线数目的增加而线性增长。然而，这样的断言只有在天线未耦合时才有效。当天线耦合存在并被信号处理算法适当考虑时，我们证明了发射和接收阵列的增益都可以随着天线数目的增加而超线性增长。在特殊情况下，接收阵列增益甚至可以随着天线数量的增加而指数增长。这些结果是令人兴奋的，因为它们意味着在接收器或发射器使用不止一个天线的无线电通信系统的潜力可能比以前报道的要高得多。
Both in the signal processing and in the information theory literature, it is common to assume that the array gain of antenna arrays grows linearly with the number of antennas. However, such an assertion is valid only when the antennas are uncoupled. When antenna coupling is present and properly taken into account by the signal processing algorithms, we show that both the transmit and the receive array gain can grow super-linearly with the number of antennas. In special cases, the receive array gain can even grow exponentially with the antenna number. These results are exciting, for they imply that the potential of radio communication systems which use more than one antenna at the receiver or the transmitter, is likely to be much higher than previously reported.