Wideband Nine-Port Reflectometer

Szczepan Odrobina, Kamil Staszek, Krzysztof Wincza, Sławomir Gruszczyński

Abstract


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

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References


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