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Development of new planar retarding surfaces for mm- and sub-mm wave applications

开发用于毫米波和亚毫米波应用的新型平面减速表面

基本信息

批准号：
EP/H021299/1
负责人：
Giampaolo Pisano
金额：
$ 12.45万
依托单位：
University of Manchester
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2010
资助国家：
英国
起止时间：
2010 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FH021299%2F1
关键词：
Development new planar retarding surfaces

项目摘要

This proposal is to design planar metal mesh retarding surfaces, based on sub-wavelength periodic or quasi-periodic structures, which selectively retard EM radiation in the microwave (GHz) to sub-mm wave (THz) regions of the spectrum. The surfaces act as artificial birefringent materials, to provide excellent polarization selectivity, or spatially varying artificial dielectrics to act as lenses. Because they are compact, robust, lightweight and exhibit favourable properties of low-loss and high predictability of performance these surfaces have the potential of altering the basic designs of a variety of instruments operating in the microwave to sub-mm wave regions of the spectrum. Examples include: telecommunications systems, radar systems, millimetre wave imaging, satellite communications, Earth observations and space science, industrial non-destructive testing and inspection, biological investigation, remote sensing, security, laboratory testing facilities and astronomical instrumentation.The new surfaces are more complex realizations of the metal grid techniques used in frequency selective surfaces (FSS). As with FSS they can be made by means of copper evaporation onto plastic substrates with the geometrical structures defined by standard photolithographic techniques. The manufacturing costs are therefore low. The innovations are: i) the design of large-scale spatially-invariant geometrical anisotropies to provide different behaviour for orthogonal polarization states; ii) the design of spatially-variant geometries-resulting in gradients in effective refractive. These innovations are based on: i) a deep physical understanding of the physics of the interaction of EM waves with lumped complex impedance elements; ii) the use of standard software (HFSS) to extract the lumped element characteristics-normally inferred empirically; iii) the ability accurately to model complex structures with large numbers of elements-beyond the capabilities of current commercial codes running on PCs.The PI works within the Manchester Radio Technology Group within the Jodrell Bank Centre for Astrophysics. The expertise, the processing and the testing facilities of the RTG group will greatly facilitate the successful completion of the research programme. The success of this grant application will be a key step in transferring considerable knowledge from the area of radioastronomy to solve real needs in the broader technological arena.

该建议是设计平面金属网阻滞表面，基于亚波长周期性或准周期性结构，其选择性地阻滞频谱的微波（GHz）至亚毫米波（THz）区域中的EM辐射。这些表面充当人工双折射材料，以提供优异的偏振选择性，或者充当空间变化的人工双折射以充当透镜。因为它们是紧凑的，坚固的，重量轻，并表现出良好的性能低损耗和高的可预测性，这些表面有可能改变各种仪器的基本设计中操作的微波到亚毫米波区域的频谱。示例包括：这些新的表面是频率选择表面所用金属网格技术的更复杂的实现。与FSS一样，它们可以通过铜蒸发到塑料基板上来制造，其几何结构由标准的光刻技术定义。因此，制造成本低。这些创新是：i）设计大尺度的空间不变的几何各向异性，以提供正交偏振态的不同行为; ii）设计空间变化的几何形状-导致有效折射率的梯度。这些创新基于：i）对EM波与集总复阻抗元件的相互作用的物理学的深刻物理理解; ii）使用标准软件（HFSS）来提取集总元件特性-通常凭经验推断; iii）准确地模拟具有大量元件的复杂结构的能力-超越了目前在PC上运行的商业代码的能力。PI在Jodrell Bank天体物理中心的曼彻斯特无线电技术组内工作。RTG集团的专业知识、处理和测试设施将极大地促进研究计划的成功完成。这一赠款申请的成功将是将射电天文学领域的大量知识转移到更广泛的技术竞技场中解决真实的需求的关键一步。

项目成果

期刊论文数量（8）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Phase-controlled polarization modulators

DOI：
10.1117/12.925214
发表时间：
2012-10
期刊：
影响因子：
0
作者：
D. Chuss;Edward J. Wollack;G. Novak;G. Pisano;J. Eimer;S. Moseley;M. Krejny;K. U-yen
通讯作者：
D. Chuss;Edward J. Wollack;G. Novak;G. Pisano;J. Eimer;S. Moseley;M. Krejny;K. U-yen

Millimetre waves photolithographic polariser beam impact

毫米波光刻偏振器光束冲击