Soltted or non-slotted of outer conductor of RF connecctor

Slotted or non-slotted?

In the world of RF connector design, a subtle revolution is quietly changing the rules of the game. In certain connector interfaces, the non-slotted design of the outer conductor contact head is gradually revealing its potential advantages. This design is like an undiscovered symphony, understated yet full of power.

In this era where cost-saving is paramount, the non-slotted design seems to work like magic. By eliminating the need for costly machining associated with slotting, this design avoids tool wear, labor time, and workers’ wages. Furthermore, without slots, the troublesome burrs caused by slotting are no longer an issue, eliminating the need for additional deburring processes and associated expenses. Before assembly, there is also no need for resources to be expended on making expanded mouth tools. In short, the non-slotted design is like a frugal steward, carefully saving every expense for the enterprise.

Moreover, the non-slotted structure demonstrates remarkable advantages in electrical performance. Without the interference caused by slots, issues such as voltage standing wave ratio, RF leakage, and passive intermodulation in RF connectors are significantly improved. The larger contact area results in reduced contact resistance, which is undoubtedly beneficial for enhancing the product's electrical performance. Simultaneously, this structure also strengthens the mechanical integrity of the outer conductor, eliminating the risk of “flying chips” or localized breakage from repeated insertions and removals over time. This improvement greatly enhances the reliability of the product.

The use of non-slotted designs for outer conductors is not a recent innovation; it has long been recognized in technical standards. In the MIL-STD-348A (April 1988) standards, the test connector interfaces for N-series, TNC-series, and TNCA-series pin contacts all employ this design. Similarly, in the IEC60169 series standards, the standard test connector interfaces for N-type, TNC-type, and TNCA-type pin contacts feature the same outer end structure.

The benefits of this design have been widely acknowledged, with non-slotted designs becoming prevalent in the market for 7/16-type and N-type universal connectors. The non-slotted TNC-type design is also beginning to emerge, although it is not yet widespread. However, like all great inventions throughout history, this innovation is gradually gaining market acceptance, and its brilliance will eventually illuminate the entire industry.