Development of a High Frequency Phase Reference Standard

高频相位参考标准的开发

• 批准号: 710140
• 金额: $ 6.65万
• 依托单位: MESURO LIMITED
• 依托单位国家: 英国
• 项目类别: GRD Proof of Concept
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=710140
• 关键词: Development; Frequency; Phase; Reference; Standard

Recent advances in microwave test equipment through the use of microwave sourcesemploying Direct Digital Synthesis (DDS) techniques enable frequencies up to 67GHz to beachieved. When these are combined with state-of-the-art Vector Network Analyser (VNA)receivers, new opportunities are opened up to develop current and voltage waveformmeasurement systems, including active load-pull systems, that operate at very highfrequencies. The major technical hurdle that prevents this from being possible is the provisionof an accurate, wide-band phase reference which is required to convert a frequency domainVNA into a time domain receiver capable of handling current and voltage waveforms.Attempts have been made to solve this issue through the development of new types of phasereference standards, however all of the approaches tried to date have been severely limited intheir frequency of operation. This research project would therefore look into the feasibility ofdeveloping a new type of phase reference that is not frequency limited, but could in principlebe used to frequencies up to 67GHz and beyond.

通过使用采用直接数字合成（DDS）技术的微波源，微波测试设备的最新进展使频率达到67GHz。当这些与最先进的矢量网络分析仪（VNA）接收器相结合时，就为开发电流和电压波形测量系统开辟了新的机会，包括在非常高频下工作的主动负载牵引系统。阻碍这一实现的主要技术障碍是提供精确的宽带相位参考，这需要将频域vna转换为能够处理电流和电压波形的时域接收器。为了解决这一问题，已经作出了各种尝试，通过发展新型的相位参考标准，但是迄今所尝试的所有方法在其操作频率方面都受到严重限制。因此，该研究项目将研究开发一种新型相位参考的可行性，这种相位参考不受频率限制，但原则上可以用于67GHz及以上的频率。