Characterization and measurement system for advanced millimeter-wave antennas

先进毫米波天线的表征和测量系统

• 批准号: 390378-2010
• 负责人: Denidni, Tayeb
• 金额: $ 9.32万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=443178
• 关键词: Characterization; measurement; system; advanced; millimeter

The increasing demand for broadband millimeter-wave systems for military and commercial applications has raised many challenges in several fields, particularly in radio engineering. One of these challenges is the design and characterization of antennas at mm-wave frequencies. For this purpose, various designs have been proposed, such as microstrip patches, CPW antennas, or slot antennas. However, these types of antennas, which fulfill the requirements in the microwave bands, do not offer sufficient performance in the mm-wave bands in terms of radiation efficiency. This is due to very high conductor losses arising from immense current densities at the strip edges, especially in the feeding networks. As an alternative to these designs, we have proposed several research projects that aim to design new advanced mm-wave antennas. In these projects, design and experimental characterization are the two most crucial steps for achieving high-performance. To achieve this, numerical analyses based on electromagnetic field simulations have firstly been used. Although numerical analysis provides a good guideline of the design, actual radiation pattern measurements are mandatory for accurately characterizing antenna performance. In this perspective, we propose a mm-wave antenna measurement setup. This measurement system is mainly composed of three parts: an anechoic chamber, a near-field scanner and a mm-wave vector network analyzer. The first two items are already installed and available in our RF laboratory, but the third item is the missing part of our measurement system. Therefore, in this proposal, we request a mm-wave vector network analyzer to cover a frequency range up to 67 GHz.

军事和商业应用对宽带毫米波系统的需求日益增长，在几个领域，特别是无线电工程领域提出了许多挑战。其中一个挑战是毫米波频率天线的设计和特性。为此，提出了各种设计，如微带贴片、CPW天线或槽天线。然而，这些类型的天线在微波波段满足要求，在毫米波波段的辐射效率方面没有提供足够的性能。这是由于在带材边缘，特别是在馈电网络中，巨大的电流密度引起的非常高的导体损耗。作为这些设计的替代方案，我们提出了几个旨在设计新型先进毫米波天线的研究项目。在这些项目中，设计和实验表征是实现高性能的两个最关键的步骤。为此，首次采用了基于电磁场模拟的数值分析方法。虽然数值分析提供了很好的设计指导，但实际的辐射方向图测量是准确表征天线性能的必要条件。从这个角度来看，我们提出了一个毫米波天线测量装置。该测量系统主要由消声室、近场扫描仪和毫米波矢量网络分析仪三部分组成。前两个项目已经安装并可在我们的射频实验室中使用，但第三个项目是我们测量系统中缺失的部分。因此，在本提案中，我们要求毫米波矢量网络分析仪覆盖频率范围高达67 GHz。