What are VNA Frequency Extenders?
Vector Network Analyzers (VNA's) are used to measures the phase and amplitude properties of RF systems such as S parameters. The frequency range of VNA's is usually fixed when you buy them. However when you need test a higher frequency system, you have two option, either buy another VNA that supports the higher frequency level (Which is very expensive) or use VNA frequency extenders. These frequency extenders can be connected to the input and output ports of the VNA and can upconvert and down-convert signals in to a higher frequencies enabling the testing of higher frequency circuits.
So for example if a VNA can operate at frequencies up to 6 GHz. A frequency extender can be used to make it measure high frequency signals like 28 GHz. The extender when connected to the port of the VNA will down-convert the 28 GHz signal to a sub-6 GHz signal for processing. Similarly, at the other port, the Extender will up convert a signal to 28 GHz.
everything RF lists VNA frequency extenders from the leading manufacturers. Use the parametric search tools to narrow down on products based on your requirement. Once you find parts that meet your specification, download the data sheet, compare products and request quotations. Inquiries sent via everything RF are directed to the manufacturers who get back to you with a quote or information.
