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On Limits of Antenna Packing in Low Power Systems

机译:低功率系统中天线包装的限制

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We evaluate spectral efficiency limits of low power portable communication devices which are only constrained by fixed transceiver aperture G is contained in IR~3 for mounting antennas. A new notion of antenna-space capacity of G naturally emerges from analysis of the achievable spectral efficiency. Antenna-space capacity measures the maximum growth of spectral efficiency that antenna configuration can achieve, given arbitrary number of antennas. Thus, the notion of antenna-space capacity also has a practical utility as a benchmark for design of actual antenna configurations. As a concrete example, we compute the antenna-space capacity of a circular geometry, where antennas can only be placed on the circumference of a circle. We show that uniform antenna placement on the circle is suboptimal antenna configuration for any fixed number of antennas, but comes arbitrarily close to optimum as the number of antennas grows unboundedly.
机译:我们评估了低功率便携式通信设备的频谱效率极限,该极限仅受IR〜3中用于安装天线的固定收发器孔径G的约束。通过分析可实现的频谱效率,自然会出现G的天线空间容量的新概念。给定任意数量的天线,天线空间容量衡量的是天线配置可以实现的频谱效率的最大增长。因此,天线空间容量的概念也具有实用性,可以作为设计实际天线配置的基准。作为一个具体示例,我们计算圆形几何体的天线空间容量,其中天线只能放置在圆的圆周上。我们显示出,对于任何固定数量的天线,均匀放置在圆上的天线是次优的天线配置,但是随着天线数量的无限增长,它任意接近最佳状态。

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