Analysis of RF coaxial SMA connector(2)

3.Rated power of SMA connector

In some cases, the power rating of the SMA connector may be important. The key parameter that determines the average power handling capability of a coaxial connector is its ability to deliver high current and keep the heat up to a moderate temperature.

The heating effect is mainly caused by the contact resistance, which is a function of the contact surface area and the way the contact pads are together. A key area is the center contact, which must be formed correctly and fit together well. It should also be noted that the average power rating decreases with frequency because resistive losses increase with frequency.

The power processing data of SMA connectors varies greatly between manufacturers, but some figures indicate that some can handle 500 watts at 1 GHz, which drops to slightly less than 200 watts at 10 GHz. However, this is also measured data and may be more practical. Taller.

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. Analysis of RF coaxial SMA connector(1)