Understanding and choosing GHz-range coaxial connectors and cable assemblies
attenuation versus frequency per 100 feet, so users can quickly determine the attenuation for this or any chosen length of cable assembly style (Figure 19). The wide range of vendor-supplied cable assemblies is not limited to having the same connector type at each end, but can instead also directly address interconnect and transition issues as well. For example, the 65530260515303 is a short (6 inch/152 mm) cable assembly using RG-174 cable with an RP-SMA bulkhead male jack on one end and a straight MMCX male jack on the other (Figure 20). There’s one more thing to keep in mind with these connectors and their cable assemblies: they are small and sometimes difficult to handle when tightening or loosening their threaded body. At the same time, they need to be torqued to a specified value: too little torque and they may not make reliable contact; too much and their threads may be stressed and deformed, causing their number of mating/unmating cycles to be reduced. For this reason, Würth Elektronik offers the 6006330101 WR-Tool, a small torque wrench for all WR-SMA connectors (Figure 21).
Figure 19: Shown is the attenuation versus frequency for the 65503503530505 cable assembly. (Image source: Würth Elektronik)
Figure 20: Cable assemblies can also be used as transitions between different connector families; the 65530260515303 assembly, for example, uses RG-174 cable and has an RP-SMA bulkhead male jack on one end and a straight MMCX male jack on the other. (Image source: Würth Elektronik)
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