Beamsteering in Pattern Reconfigurable Arrays Using Directional Modulation
Beamsteering in Pattern Reconfigurable Arrays Using Directional Modulation
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DOI：
10.1109/tap.2010.2046854
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发表时间：
2010-03
影响因子：
5.7
通讯作者：
M. Daly;J. Bernhard
中科院分区：
文献类型：
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作者：
M. Daly;J. Bernhard
使用具有图案可重构元件的阵列，通过切换每个符号的元件来生成数字调制。这种技术被称为定向调制。由于调制是在天线级生成的，因此它可以控制数据发送的方向，这与基带调制不同，基带调制以不同的功率电平在所有方向上发送相同的数据。概述了用于确定如何切换元件以仅在指定方向上传输的过程。结果表明，与传统的可重构阵列相比，定向调制阵列允许在更窄的波束宽度上发送信息。此外，该方法在可能的发射角度方面提供了更多的选择性。测量和计算结果，从四个元素的可重构阵列。
An array with pattern-reconfigurable elements is used to generate a digital modulation by switching the elements for every symbol. This technique is known as directional modulation. Because the modulation is generated at the antenna level, it gives control over the directions in which data is sent, unlike baseband modulation which transmits the same data in all directions at different power levels. A procedure for determining how to switch the elements to transmit only in a specified direction is outlined. Results indicate that compared to a traditional reconfigurable array, the directional modulation array allows information to be sent over a narrower beamwidth. Additionally, the method provides more selectivity in the possible transmit angles. Measured and calculated results from a four-element reconfigurable array are presented.