Flexible gradient impedance radio frequency transmission line and preparation method thereof

Abstract

The invention relates to the technical field of transmission systems, in particular to a flexible gradient impedance radio frequency transmission line and a preparation method thereof. The preparation method comprises the steps of reflecting loss at different positions of the transmission line and judging an impedance change mode; detecting the position of the corresponding transmission line to obtain gradually changed transmission impedance and abrupt change transmission impedance, comparing the gradually changed transmission impedance with the abrupt change transmission impedance, and judging whether to adjust the wrapping pitch of the wound insulating layer to change the thickness of the insulating layer or not according to an impedance comparison result; detecting the winding state on the insulating layer through an image detection device based on the impedance matching requirement for adjusting the wrapping pitch; and determining the corresponding transmission line reflection loss detection requirement for adjusting the wrapping pitch based on the winding state, and determining the condition that the impedance gradient requirement reaches the standard based on the reflection loss detection data. According to the invention, the gradual change impedance stability of the transmission line is improved by detecting the winding smoothness and the winding thickness trend parameter of the coaxial transmission line and adjusting the wrapping pitch.

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