Considerations for millimeter wave interconnection(2)

This is why waveguides are often chosen for interconnection in many millimeter wave applications. In the case of the same frequency as coaxial or some planar transmission lines, waveguide interconnection usually has greater power capacity and lower loss. However, as surface finish becomes an important factor affecting RF loss at millimeter wave frequencies, it is important to correctly process or coat conductive surfaces. Therefore, for millimeter-wave interconnects used in critical or sensitive applications, conductors often have precious metal coatings, especially gold, because of its corrosion resistance and excellent electrical conductivity. The high radio frequency loss in millimeter wave interconnection also comes from the dielectric, so the choice of dielectric is an extremely important aspect of millimeter wave design.

Another reason why millimeter wave applications usually use waveguide interconnects or dedicated cable assemblies is to deal with the challenges encountered by operators when making physical connections. For example, for RF and microwave coaxial, operators with certain skills and experience can make RF connections correctly without using special tools. However, at millimeter wave frequencies, the size and tolerances of connectors and components usually determine the need for precision machine assembly. For some operators, just connecting millimeter-wave coaxial connectors together can also be challenging. Therefore, the use of precision indexed cable assemblies is becoming more and more common. The ability to accommodate more RF interconnections in the same or smaller connector footprint is another reason for the widespread use of these dedicated cable assemblies.

ZOMWAVE focuses on the design, development and manufacturing of RF interconnection solutions, including RF test probes/BTB probes, RF VNA test cables, RF adapters, RF attenuators, RF terminal loads, RF power splitters, RF switches and microwaves & Low loss & phase compensation cable assemblies and RF coaxial connectors (1.85mm (67GHz), 2.4mm, 2.92mm, 3.5mm, 1.0/2.3, SMA, BNC, BMA, N Type, HN, TNC, SMP, SMPM , MCX, MMCX, SSMCX, etc. are used for plug/male and jack/female, etc.). The R&D and engineering team has more than 20 years of RF experience in ZTC Technology, and has detailed and in-depth research on materials, applications and manufacturing processes. We provide a wide range of interconnection solutions for RF testing applications, including 2G/3G/4G(LTE)/5G (Sub-6G and microwave) and mobile phone RF testing in WIFI and Bluetooth. We also provide RF connectivity solutions for the telecommunications, healthcare, automotive, military and aerospace industries. If you have any needs, please feel free to contact us!

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1. Considerations for millimeter wave interconnection(1)