Regarding the RF coaxial connectors, we all know that the material and mechanical dimensions may have impact on transmission performance, especially the internal dimensions. Resistance mismatch may cause signal reflection, and influence the transmission. Most of the time, we need to analyze, modify, and optimize samples until the analysis structure is satisfactory. However, the analysis results often have gaps in the actual test, so the impact is affected. What are the factors? According to our research, there're mainly the following points:
1. There's a certain difference between the actual test interface and the model interface;
2. The cable performance of the model is ideal, but in practice the dielectric constant and size of the cable medium may be mutated;
3. The dielectric constant of the medium cannot be controlled accurately;
4. There may be no calibration parts as required during the test, and the data is often measured by means of adapters or gating;
5. In order to reduce the complexity of the analysis, the fine structure is often omitted, such as a small air gap replaced by a medium, an interference between the barb and the medium;
6. When assembling, it is impossible to avoid deformation and deformation of the part, so the relative position of the part is inconsistent with the model;
7. When modeling, the fillet part is often changed to chamfer, and even the feature is ignored;
8, The connector is modeled using nominal dimensions, but the actual part is tolerated;
9. There's a certain error in the simulation analysis, which cannot be guaranteed 100% accuracy;
Superbat has been in RF field for more than 10 years, specialise in the sale of RF coaxial connectors,adapters, cable assemblies etc, and especially provides Custom Services for these products. All RF pigtail cables are customized by ourselves and test with sophisticated network analyzer to get reliable results, both on good quality and lead time we can control and support you well. Feel free to contact us (info@rfsupplier.com) if you have related needs.