Measurement of the Effective Permittivity in Transmission Linesby Means of Frequency Domain Reflectometry
نویسندگان
چکیده
This work presents a procedure to measure the effective dielectric permittivity in transmission lines. The procedure is based on an improved Frequency Domain Reflectometry (FDR) method. In this technique, the measured reflection coefficient as a function of the frequency is used to synthesize the response of a terminated transmission line to an ideal delta pulse in different finite bandwidths. The time spent by this pulse to reach a highly reflective termination and return to the input of the transmission line was used to estimate the effective dielectric permittivity in the range 5 GHz 20 GHz.
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