100 GHz real-time measurement station

德国柏林技术大学Universität混合信号电路设计系，由杨振英教授领导。Friedel Gerfers与“有线通信系统”和“无线通信系统”研究小组一起开发有线和无线高速通信以及汽车应用的电路和系统。目前的项目包括完整的收发器以及收发器组件-以数据转换器为核心竞争力。有线项目包括数据速率高达224 Gbit/s （112 GBaud PAM4）的收发器和符号速率高达150 GBaud的vcsel和光调制器等组件，以推进数据中心（400和800千兆以太网）当前和未来传输技术的发展。数据速率超过100 Gbit/s的通信系统，特别是下一代移动电话“6G”，将使用高达d波段（最高170 GHz）的无线频率范围。为了具备本研究所需的表征能力，本提案要求一个100 GHz实时测量装置（“100 GHz Echtzeitmessplatz”），并在并行提案中要求一个W和d波段频谱测量装置（“W和d波段频谱测量装置（75-170 GHz）”）。100 GHz实时测量装置由现有70 GHz实时示波器的带宽扩展组成，该示波器也通过2019年的一项主要研究仪器提案获得资助，但当时既没有项目需求，也没有资金机会将带宽扩展到100 GHz。提出了将带宽扩展到100ghz的需求以及现有70ghz实时示波器的使用现状。目前的研究需要100 GHz实时测量装置，例如，用于测量眼图及其特性（眼开度、误码率、符号间干扰、噪声和抖动分析），以及通过检查单音到高次谐波（例如，7阶）进行线性观察。在这里，需要记录宽带、连续的数据流以进行可靠的分析，这就是采样示波器不能使用子采样架构的原因。

The department "Mixed Signal Circuit Design" (MSC) at the Technische Universität Berlin, headed by Prof. Dr.-Ing. Friedel Gerfers, develops circuits and systems for wired and wireless high-speed communication as well as automotive applications with its research groups "Wireline Communication Systems" and "Wireless Communication Systems". Current projects include complete transceivers as well as transceiver components - with data converters as the core competence.Wired projects include transceivers with data rates of up to 224 Gbit/s (112 GBaud PAM4) and components such as VCSELs and optical modulators with symbol rates of up to 150 GBaud to advance the development of current and future transmission technologies in data centers (400 and 800 Gigabit Ethernet). Wireless frequency ranges up to the D-band (with up to 170 GHz) are used for communication systems to be developed with data rates of more than 100 Gbit/s, in particular for the next mobile phone generation "6G". In order to have the characterization capabilities necessary for this research, the present proposal requests a 100 GHz real-time measurement setup (“100 GHz Echtzeitmessplatz”) and, in a parallel proposal, a W- and D-band spectral measurement setup (“W- und D-Band Spektralmessplatz (75-170 GHz)”).The 100 GHz real-time measurement setup consists of the bandwidth extension of an existing 70 GHz real-time oscilloscope, which was also funded through a major research instrumentation proposal in 2019, but at that time neither had the project need nor the funding opportunity for a bandwidth extension to 100 GHz. The need of the bandwidth extension to 100 GHz as well as the past use of the existing 70 GHz real-time oscilloscope are presented in this proposal.The 100 GHz real-time measuring setup is required in the current research mentioned, e.g., for the measurement of eye diagrams and their characteristic properties (eye opening, bit error rate, intersymbol interference, noise and jitter analysis) as well as for linearity observation by examining single tones up to higher harmonics (e.g., 7th order). Here, broadband, continuous data streams need to be recorded for reliable analyses, which is why the subsampling architecture of a sampling oscilloscope cannot be used.