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Distinctive measurement system for 5G-MIMO and house purposes


Entrance row, f.l.t.r: Bernhard Schweiger (Regional Gross sales Consultant, Keysight Applied sciences) Joel Dunsmore (Keysight Fellow, Keysight Applied sciences, USA). again row, f.l.t.r: Prof. Wolfgang Heinrich (Head of Microwave Division, FBH), Dr. Olof Bengtsson (Group Chief Microwave Measurements & Head of RF Energy Lab, FBH) Credit score: FBH/P. Immerz

With the supply of Keysight Applied sciences’ custom-designed wideband microwave downconverters, all key elements for the novel 5G-MIMO system at the moment are in place at Ferdinand-Braun-Institut. The system was funded inside Analysis Fab Microelectronics Germany and can allow distinctive measurements and analysis.

The 5G-MIMO measurement system for characterization of a number of enter a number of output (MIMO) {hardware} for the fifth technology of telecom (5G) and is in place at Berlin-based Ferdinand-Braun-Institut (FBH). With the set up of the wideband downcon-verters, an necessary milestone has been reached organising this distinctive measuring system. Its massive instantaneous bandwidth, huge variety of ports, and vector calibration potential make it unparalleled on this planet. This funding has been made doable by way of funding from the German Federal Ministry of Schooling and Analysis inside Analysis Fab Microelectronics Germany (FMD).

Unprecedented measurement capabilities

The system will enable coherent characterization on 16 ports as much as 67 GHz utilizing alerts with instantaneous bandwidths exceeding 2 GHz. It contains vector calibration of the interface to the machine beneath take a look at (DUT), which could be an built-in microwave amplifier on-wafer or a connectorized amplifier module. These options make the system excellent for characterizing built-in multi-amplifier designs and the complicated cross-modulation that come up in such elements in trendy beam-forming purposes in telecommunication and house.

When the specs had been outlined and the planning began within the Microwave Measurement Group at FBH in 2017, no obtainable {hardware} in the marketplace may absolutely meet the formidable necessities. Thus, the system was designed at FBH based mostly on essentially the most superior obtainable sub-components in the marketplace. A number of different strategies for the wideband down conversion had been evaluated within the growth course of. The bandwidth and required dynamic vary of the system are notably laborious to attain. In discussions with Keysight Applied sciences, the answer was present in custom-modified vector community analyzers based mostly on their most superior and properly established PNA-X platform. The PNA-X items are outfitted with modified wideband mixers and wideband intermediate frequency (IF) outputs. They’re additionally ready for widespread local-oscillator (LO) operation. “These main modifications had been particularly in-corporated to satisfy our necessities,” explains Dr. Olof Bengtsson, head of FBH’s RF Energy Lab. “All of this may not have been doable with out the nice curiosity, information and dedication of the Keysight workforce.” Mixed with exterior third-party digitizers, the PNA-X receivers within the system enable coherent multiport evaluation with instantaneous bandwidths within the 5 GHz vary.

“Keysight is dedicated to growing superior options for the microwave business and acknowledged the problem offered to us by Dr. Bengtsson as a possibility to do exactly that,” stated Dr. Joel Dunsmore, Keysight Fellow and technical lead on the mission. “This chance allowed us to mix the distinctive efficiency of our {custom} GaAs mm-wave converters with an progressive method to satisfy the time schedule in a brand new {hardware} choice in our PNA-X household of devices. Clearly, business main cooperation, equivalent to this, will profit your complete microwave group.”

FBH will now give attention to integrating the system and make it absolutely operable to satisfy the anticipated system efficiency. An increasing number of complicated MIMO measurements can be doable; and in 2020 an over-the-air (OTA) measurement functionality for 3-D built-in antennas can be added.

This method would be the cornerstone and first workhorse for MMIC amplifier characterization and MIMO analysis at FBH for a few years to return. It’ll additionally allow additional analysis on wideband measurements strategies. The 5G-MIMO measurement system is not going to solely open up distinctive measurement potentialities for the FBH and its prospects, but in addition for the accomplice institutes that joined forces inside Analysis Fab Microelectronics Germany (FMD). “This method represents precisely what FMD is all about, guaranteeing that microelectronic analysis in Germany has entry to state-of-the-art tools”, explains Dr. Andreas Grimm, Expertise Park Supervisor at FMD. “Gear like that is elementary to have the ability to play a job within the growth of the longer term difficult purposes, thus supporting the German and European microelectronic business to remain aggressive.”


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Distinctive measurement system for 5G-MIMO and house purposes (2020, May 27)
retrieved 27 May 2020
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