A DC TO 26.5 GHz Coaxial Test Fixture for MMICs and Transistors

During the past few years the performance of coaxial test instrumentation has been advancing to higher frequencies and greater measurement accuracy. The HP 8510 Vector Automatic Network Analyzer (VANA), which can display precisely corrected S-parameter data from measurements swept from 45 MHz to 26.5 GHz, provides an excellent example.