Planar antenna reflectors are attractive for the designs of both narrow-beam antenna arrays and frequency-scanning arrays. Planar implementation of reflectors can be performed through substrate integrated waveguide (SIW) technology. The magnitude and argument of the field reflected from such surfaces depend on the angle of the incident field. Thus, the reflector’s profile should be synthesized considering the effect of spatial dispersion of the reflection coefficient to maximize the efficiency of the reflection. In this paper, we show how to synthesize a reflector’s profile that is characterized by the effect of spatial dispersion of the reflection coefficient. For this purpose, we use a spectral representation of the field reflected from a surface with spatial dispersion of the reflection coefficient. Specifically, we investigate a phase error for an SIW-based parabolic reflector. We show that offset SIW-based reflectors are mostly affected by the effect of spatial dispersion of the reflection coefficient.

中文翻译：

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以反射系数的空间色散为特征的反射器的合成

平面天线反射器对于窄波束天线阵列和频率扫描阵列的设计都是有吸引力的。反射器的平面实施可以通过基板集成波导（SIW）技术执行。从这些表面反射的场的大小和自变量取决于入射场的角度。因此，应该考虑反射系数的空间色散效应来合成反射镜的轮廓，以最大程度地提高反射效率。在本文中，我们展示了如何合成以反射系数的空间色散效应为特征的反射镜轮廓。为此，我们使用从表面反射的场的光谱表示，并具有反射系数的空间色散。特别，我们研究了基于SIW的抛物面反射器的相位误差。我们表明，基于偏移SIW的反射器主要受反射系数空间色散的影响。