论文标题
选择抛物面反射器天线模式的重量选择，可重新配置边缘散射
Weight Selection for Pattern Control of Paraboloidal Reflector Antennas with Reconfigurable Rim Scattering
论文作者
论文摘要
最近已经证明，通过使用沿边缘的可重构元件使用可重构元件来修改抛物面反射器天线的边缘散射，促进了包括取消侧球的局部修饰。在这项工作中，我们研究了用于确定单位数量重量（即修改散射信号相）以从反射轴任意角度取消的侧球取消的技术。具体而言，表明，尽管搜索空间较大，而且成本函数的非凸度性，但可以以合理的复杂性找到权重，从而提供显着的取消能力。首先，发现没有任何大小约束的最佳权重。之后，开发了用于确定具有量化相和非量化相的单位重量的算法。此外，可以证明可以获得权重，即两者都取消侧杆，同时提供恒定的主叶增益。一个主要发现是，实用（二进制或第四纪）仅相位权重的主叶基本上没有变化，这可能是足够的深空。
It has been recently demonstrated that modifying the rim scattering of a paraboloidal reflector antenna through the use of reconfigurable elements along the rim facilitates sidelobe modification including cancelling sidelobes. In this work we investigate techniques for determining the unit-magnitude weights (i.e., weights which modify the phase of the scattered signals) to accomplish sidelobe cancellation at arbitrary angles from the reflector axis. Specifically, it is shown that despite the large search space and the non-convexity of the cost function, weights can be found with reasonable complexity which provide significant cancellation capability. First, the optimal weights without any magnitude constraints are found. Afterwards, algorithms are developed for determining the unit-modulus weights with both quantized and unquantized phases. Further, it is shown that weights can be obtained that both cancel sidelobes while providing a constant main lobe gain. A primary finding is that sufficiently deep nulls are possible with essentially no change in the main lobe with practical (binary or quaternary) phase-only weights.
