论文标题
用于地面穿透雷达应用的弯曲天线的分散补偿
Dispersion Compensation of Sinuous Antennas for Ground Penetrating Radar Applications
论文作者
论文摘要
弯曲的天线表现出许多对于地面穿透性雷达（GPR）应用的理想特性，例如超宽带宽，极化多样性和低调的外形。但是，弯曲的天线是分散的，因为活性区域沿结构频率以频率移动。这是脉冲雷达应用的不良质量，因为辐射脉冲会被扭曲。这种失真可能不利于近距离传感应用，例如GPR。通过精确模拟或测量的相位数据处理，可能会补偿这种失真。但是，由于地面的介电载荷，天线性能可能会偏离模拟或测量的天线性能。在这种情况下，可能希望采用基于天线设计参数的分散模型，该模型可以在原位进行优化。先前研究过针对其他天线的分散补偿模型可能类似地应用于弯曲天线。本文探讨了弯曲天线的色散特性，并提出了一个简单的模型，该模型可用于压缩分散的脉冲。
Sinuous antennas exhibit many desirable properties for ground penetrating radar (GPR) applications such as ultra-wide bandwidth, polarization diversity, and a low-profile form factor. However, sinuous antennas are dispersive since the active region moves with frequency along the structure. This is an undesirable quality for pulsed-radar applications since the radiated pulse will be distorted. Such distortion may be detrimental to close-in sensing applications such as GPR. This distortion may be compensated in processing with accurately simulated or measured phase data. However, antenna performance may deviate from that simulated or measured due to the dielectric loading of the ground. In such cases, it may be desirable to employ a dispersion model based on antenna design parameters which may be optimized in-situ. Dispersion compensation models previously investigated for other antennas may be similarly applied to sinuous antennas. This paper explores the dispersive properties of the sinuous antenna and presents a simple model that may be used to compress dispersed pulses.
