New E-band coaxial connector equips test instrument

An expert group with combined knowledge of microwave signal transmission started the joint project to develop and implement a new coaxial connector optimised for E-band frequencies. Emerging applications in particular for automotive radar from 76 to 81GHz, plus the WiGig extension IEEE 802.11ay operating up to 71 GHz, showed the demand for a novel, strong coaxial cable connector fitting for industrial applications at frequencies up to 90 GHz. The group comprises of the Physikalisch-Technische- Bundesanstalt, Rohde & Schwarz, Rosenberger Hochfrequenztechnik and SPINNER.

The result is the 1.35mm E connector, with a precise metric fine thread, a reliable pin-gap, and an integrated groove for optional push-pull locking.

Now, the company has implemented the E connector for the first time in a test and measurement instrument. The R&S NRP90T and R&S NRP90TN for frequencies up to 90GHz are the newest additions to the thermal power sensor family. Like all other members of the family, the new models offer the highest accuracy and fastest speed of measurement available for thermal power measurements. The R&S NRPxxT power sensors function locally, connected to a PC, selected Rohde & Schwarz instruments, or an R&S NRX base unit. The R&S NRPxxTN sensors can also be run remotely via a LAN.

All four partners in the 1.35 mm E connector working group are delighted with the progress of their cooperation: Daniel Blaschke, head of development for RF & Microwave Power Meters at Rohde & Schwarz, says: “Power sensors are often the first T&M instruments for which customers request native support of a new connector type. We are happy to be the first to introduce a model equipped with the novel E connector, thanks to this fruitful partnership.”

Dr. Hans-Ulrich Nickel, head of RF Research & Development at the SPINNER Group, comments: “We initiated the 1.35 mm project to obtain a robust and future-oriented interface solution up to 90 GHz. It fills me with great joy to see the rapid adoption of our 1.35 mm portfolio.”

Hauke Schütt, Executive Vice President Test & Measurement from Rosenberger, adds: “The new 1.35 mm connectors draw a lot of interest in the 70 to 90 GHz range. We are excited that we are already able to offer a wide range of solutions.” Dr Karsten Kuhlmann, head of the working group High-Frequency Basic Quantities at PTB, says: “International standardisation and traceability to national standards are key ingredients for the successful introduction of a new RF connector system.”