UHF series cable provides the lowest insertion loss in the current industry, and has excellent mechanical phase, temperature phase, and attenuation stability. And has good processing ability for power bearing. This is achieved through a cabl...
UHS series cable is the super-flexible type of ultra-low loss stable-phase cable. In the market application experience, ultra-low loss stable-phase cable in meeting customer requirements for electrical performance, in actual use, there are s...
LLF series cables provide a wide range of applications in the current industry, and have very good mechanical phase, attenuation stability, excellent shielding performance and long service life. It is made of low-density PTFE medium and thre...
LHF series cables provide low insertion loss within the current industry, and have very good mechanical phase, temperature phase and attenuation stability. Currently, the highest operating frequency of this series is 67GHz. It uses ultra-low...
The LHS superflexible series cables provide the most flexible radio frequency cables at present, and have very good mechanical phase, low attenuation and attenuation stability, and high shielding. And has good processing capacity for power c...
LCF series cables are UHF series economical radio frequency cables, which not only increase the cable attenuation with less floating, but also greatly reduce the cable cost. It is woven with low-density PTFE medium, aluminum foil longitudina...
The AF series cable is a UHF series economical radio frequency cable, which not only increases the cable attenuation with less floating, but also greatly reduces the cable cost. It is woven with low-density PTFE medium, aluminum foil longitu...
The LCS series cable is a UHF series economical radio frequency cable. It increases the cable attenuation in a small float, but greatly reduces the cable cost. It is realized through the cable structure. It uses low-density PTFE medium, alum...
LLS series cables are UHF series economical radio frequency cables, which increase the cable attenuation with less floating, and also greatly reduce the cable cost. It is realized through the cable structure. It uses low-density PTFE medium,...
With the continuous improvement and needs of market testing capabilities, Getuo Microwave will develop DC-67GHz high-performance & high-precision test cable assemblies, which are equipped with compression-resistant, torsion-resistant, waterp...
With the continuous improvement and needs of market testing capabilities, Getuo Microwave will develop DC-67GHz high-performance & high-precision test cable assemblies, which are equipped with compression-resistant, torsion-resistant, waterp...
High-strength cable assembly is a flexible cable assembly that can be bent up to 70% and can replace customized semi-steel cables without customizing its own length and bending angle. It is used between communication systems and modules. , I...
UHF series cables provide the lowest insertion loss in the industry, and have very good mechanical phase, temperature phase and attenuation stability. And has good processing capacity for power carrying. This is achieved through the cable st...
News
How to determine the performance of a cable assembly
Cable assemblies have two characteristic properties that are of interest: voltage standing wave ratio VSWR (or return loss) and insertion loss. Except for the shortest cable assembly (less than 6 inches) that uses extremely low loss cables, all insertion loss is mainly due to the attenuation of the cable itself, which can generally be determined from the manufacturer's information. How to confirm that the RF connector meets the standing wave requirements. On the other hand, VSWR is mainly due to the connector. Remember that VSWR is a vector quantity. When the frequency is scanned, the VSWR of each connector will jump up and down with the fluctuation of the phase shift. Where these maximum and minimum values occur will depend on the length of the cable and its dielectric constant. Generally speaking, the calculated maximum standing wave is determined by the reflection coefficient of each end connector. The worst case is the addition of two reflection coefficients. Although small, the return loss of the cable is also part of the VSWR. If the loss of the cable is ignored, VSWR will be reduced. For this example, we will ignore the attenuation of the cable and not as an influencing factor. For example, we say that the VSWR of one connector is 1.2 at a certain frequency, and the other connector is 1.25, the cable VSWR is 1.05, and the VSWR is converted into reflection coefficients of 0.091, 0.111 and 0.024, and the maximum reflection coefficient is 0.226. Converting back to VSWR is 1.584. One way to get the result quickly is to multiply the three VSWR values, in this case, it will be 1.2*1.25*1.05=1.575. This is very close to the previous calculation results. For return loss, VSWR can be converted to dB. If the return loss of each connector is different or if the return loss of the cable is not negligible, then each return loss will have to be converted into a reflection coefficient to be increased and then converted back to return loss. It is very important to realize that the VSWR of the connector and the cable are superimposed in a vector, and the VSWR of the cable assembly is higher than the VSWR of each individual component.
