Wiltron Company

Thomas R Brinkoetter

William W Oldfield

Todd Daniel Antes

An automatic VNA calibration apparatus is described which requires only a single connection at each of two test ports on a VNA and the pressing of one button. The apparatus comprises a housing for housing electrical components and a multi-throw switch which is controlled by a controller coupled to the housing. The switch is switched between a plurality of positions for coupling to the VNA a series of different calibration and verification components. The components need not be 'perfect' standards so long as their values, including the phase shifts which they provide, are accurately measured.

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Portland, OR, United States of America

Thomas R Brinkoetter