A cylindrical cavity center-loaded metal disc microwave surface resistivity testing device
A microwave surface resistivity testing device that inserts a metal disc into a cylindrical cavity solves the problem that existing technologies cannot perform high-frequency testing, enabling accurate surface resistivity measurement at frequencies of 110 GHz and above. It is suitable for circuit design in the millimeter-wave and terahertz frequency bands.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-10-24
- Publication Date
- 2026-07-21
AI Technical Summary
Existing methods for testing the surface resistivity of metal plates in the microwave band cannot meet the requirements of high-frequency testing, especially in terms of testing accuracy and frequency range above 30 GHz.
A microwave surface resistivity testing device with a metal disc loaded in the center of a cylindrical cavity is designed. By inserting the metal disc into the cylindrical cavity which is divided in the middle, and using the flange of the cylindrical cavity and the metal disc to form a stable resonant structure, the device combines a coaxial feed structure and a vector network analyzer to perform testing, thereby realizing ultra-wideband multimode testing.
It achieves accurate surface resistivity testing in the frequency range of 110 GHz and above, has ultra-wideband multimode testing capability, high testing accuracy, and is suitable for millimeter wave and terahertz frequency design in next-generation information technology.
Smart Images
Figure CN117471171B_ABST