VNA Test Cable Assemblies for VNA and Semiconductor Probe Testing

The importance of VNA Test Cable Assemblies and connectors cannot be overemphasized. Device size is wavelength-dependent, and VNA Test Cable (and connectors) for mmWave frequencies are extremely small. This is very welcome from a form factor standpoint, but is a problem for all other aspects of materials, manufacturing, and performance. Such small-scale devices require the utmost care from all users, and even the smallest amount of dust, barely noticeable scratches or other damage can compromise the accuracy of their measurements.

For example, the full wavelength of 60GHz VNA Test Cable is about 5mm, and the measurement accuracy of the half-wavelength antenna at this frequency is about 2.5mm, using a millimeter-wave connector with a size of 2.92~1.0mm. In addition, 0.8mm connectors VNA Test Cable have been developed for frequencies above 110GHz. Compared to such connectors, the connectors used for HF to UHF frequencies are huge - 3m at 100MHz and 30cm at 1GHz.

Since loss is an important consideration at mmWave frequencies of VNA Test Cable, the connection between the device under test (DUT) and the measurement instrument and all other components in the transmission chain uses as few interconnects as possible. In this way, not only VNA Test Cable can insertion loss be reduced, but the number of connection points at risk of disconnection can be reduced, the VNA Test Cable can be simplified, and the entry path of dust can be limited.