Techniques for VNA Measurements of Non-insertable DevicesTECHNICAL ARTICLE Techniques for VNA Measurements of Non-insertable Devices While the simplest coaxial two port device to measure on a vector network analyzer (VNA) would be insertable (i.e., one male and one female connector), these are often in a minority of the devices to be tested. As a result, adapters or some other techniques are required during the calibration. In non-coaxial and mixed connector scenarios, the problems get even worse. Adapters, fixtures, and other structures are often needed and their mathematical characterization and removal is usually required. The intent of this document is to explore some of the options available to deal with these situations and their relative performance attributes. With the exception of a few items (noted in the text), all of the techniques ……