By introducing two thermoelectric power sensor products, nrp90t and nrp90tn, rod and Schwartz became the first instrument manufacturer to support novel and robust 1.35mm coaxial connector. The connector can be up to 90 GHz and will be included in the next edition of IEEE and IEC related standards. Since 2017, rod and Schwartz have been partners in the 1.35mm E-band connector development project.
A group of experts on microwave signal transmission initiated the joint project to develop coaxial connectors for E-band optimization. Emerging applications, especially automotive radars from 76ghz to 81ghz, and the wigig extended IEEE 802.11ay with frequencies up to 71ghz highlight the need for a new robust coaxial connector, which is suitable for industrial applications up to 90GHz. The team is composed of the National Metrology Institute of Germany, the Federal Institute of physical technology, Rhodes and Schwartz, Rosenberg high frequency technology and spinner.
The result is a 1.35mm E-band connector with precision metric fine threads, reliable pin clearance and integrated grooves for optional push-pull locking. The design has been approved by the next edition of IEEE 287-2007 for precision coaxial connectors in 2019, and is also recognized by IEC. The IEC has designated its release code as IEC 61169-65.
Now, Roeder and Schwartz are using E-band connectors for the first time in test and measurement instruments. The R & s nrp90t and R & s nrp90tn with a maximum frequency up to 90 GHz are the latest products of the thermoelectric power sensor series. Like other products in this series, the new model has the highest accuracy and fastest measurement speed for thermoelectric power measurement. The R & s nrpxxt power sensor can be connected to a PC for manual test, and the Rhode Schwartz instrument or R & S NRX power meter host can be selected. The R & s nrpxxtn thermoelectric power sensor can also be remotely operated over the LAN.
E-band connector fills the gap between 1.85mm connector (V-band connector) and 1.00mm connector (W-band connector). The V-band connector introduced 30 years ago is quite reliable for industrial applications, but its operating frequency is limited to 70 GHz. On the other hand, W-band connectors support up to 110 GHz, but require good mechanical accuracy during assembly and are often loose in use.
All four partners in the 1.35mm E-band connector working group are pleased with the progress, said Daniel Blaschke, R & W RF and microwave power meter development director. “Power sensors are usually the first test and measurement instruments that customers require to support new connector types. Thanks to this fruitful partnership, we are pleased to be the first manufacturer to introduce new E-band connector meters. ” Dr. Hans Ulrich nickel, head of RF research and development at spinner group, said: “we have launched the 1.35mm project to achieve high reliability up to 90 GHz and can be applied to future connector solutions. I’m glad to see our 1.35mm product being adopted quickly. ” Hauke Sch ü TT, executive vice president of testing and measurement at Rosenberg, added: “the new 1.35mm connector has attracted a lot of attention in the 70 to 90 GHz range. We are happy to be able to offer a wide range of solutions. ” “International standardization and traceability of national standards are key factors in the successful introduction of new RF connector systems,” said Dr. Karsten KUHLMANN, head of the high frequency fundamental working group at the German Federal Institute of physical technology