Wideband Nine-Port Reflectometer

The paper presents a wideband nine-port reflectometer realized as cascade connection of six- and five-port reflectometers. It is shown that such solution allows for convenient adjustment circuits’ parameters in order to provide significantly reduced measurement uncertainty with respect other reported Simultaneously, the proposed network features simple flexible design. For experimental verification, has been manufactured incorporated into system intended reflection coefficient measurements within frequency range 2.5 – 3.5 GHz. obtained results are an excellent agreement values measured using commercial VNA.