一种具有渐变结构的纤维复介电常数测试装置
By introducing a gradient structure at the top of the conductor inside the coaxial resonant cavity and opening a slit in the cavity wall, the problems of low quality factor and difficult layout in fiber dielectric constant testing are solved, achieving high sensitivity and low error testing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-09-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for testing the dielectric constant of fibers suffer from problems such as low quality factor, insufficient test sensitivity, and difficulty in sample preparation, especially when testing low-loss materials, where the error is relatively large.
A re-entry coaxial resonant cavity was used for testing, and a gradient structure was introduced at the top of the conductor inside the cavity to compress the electric field energy and concentrate it in the test channel. At the same time, a gap was opened on the cavity wall to cut off the current of the interference mode. A pre-reserved lofting gap was designed to solve the operational difficulties of traditional resonant cavities.
It significantly improves the sensitivity and quality factor of the test, suppresses noxious patterns, simplifies the layout process, and reduces test errors.
Smart Images
Figure CN117233474B_ABST