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A highly accurate electromagnetic characterisation of open-circuited coaxial lines terminating in a circular waveguide has been obtained with a view to the employment of such devices as calibration standards for microwave measurements. The theoretical results have been compared with the corresponding experimental data in the range 1 kHz∼18 GHz for an open-line standard for common use. The agreement is very good.
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Bianco et al. (1980) studied this question.
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