A modified fractal zone plate (FZP) with the character of extending the focal depth is proposed.
提出了一种具有增大焦深特性的改进型分形波带片(fzp)。
Meanwhile, a critical diffraction distance was defined to describe the diffration effect of the FZP quantitatively.
为了定量描述波带板的衍射效应，定义了临界衍射距离。
The Fresnel Zone phase correcting Plate (FZP) antenna is a new kind of antenna, and has been found widespread application prospect.
菲涅尔区相位修正平面天线是一类具有广泛应用前景的新型天线。
In the far-field, the further object scanned by FZP with fewer fringes has flatter and lower amplitude of twin-image noise for reconstructed image.
满足夫琅和费远场条件的两个物体，z值大的物体将被环数少的菲涅耳波带板扫描，具有小而平直的孪生像噪声振幅；
The analysis of the lateral and axial properties shows that the focal depth of the modified FZP is larger than the FZP under the broadband lighting.
分别从横向和纵向两个方面分析了改进型分形波带片的光场分布，结果表明，在宽带光照明下，改进型分形波带片的焦深也大于常规的分形波带片。
Compared with the parabolic reflector, a phase factor is of most importance in the efficiency evaluation of Fresnel zone phase-corrected plate (FZP) ones.
同抛物面反射器相比，菲涅尔区相位修正平面反射器的相位效率因子对天线效率的影响显著。
At millimeter-wave band, Fresnel Zone Plate (FZP) antenna has the advantages of simple structure, planar configuration and low cost, while giving performance comparable to the parabolic antenna.
在毫米波波段，菲涅尔区相位修正平面（FZP）天线以轴向尺寸小、平面化结构、加工简单的优点，可以作为传统反射面天线的替代天线。
With the method of physical optics, the caustic field distribution of FZP illuminated by plane wave is analyzed, and the numerical results for the incident plane wave oblique to FZP are presented.
本文用物理光学方法分析了平面波入射时其焦散区场的分布并给出了数伍计算结果。
With the method of physical optics, the caustic field distribution of FZP illuminated by plane wave is analyzed, and the numerical results for the incident plane wave oblique to FZP are presented.
本文用物理光学方法分析了平面波入射时其焦散区场的分布并给出了数伍计算结果。
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