Cylindrical high Q resonant cavity and microwave dielectric complex permittivity test device

• Main Author: EN,GUO LI
• Format: Patent
• Language: English
• Published: 21.06.2006
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses a cylindrical high-Q resonant cavity and complex dielectric constant measuring device of microwave dielectric medium in the microwave detecting technique domain, which comprises the following parts: cylindrical high-Q cavity tube 1, upper end cap 10, lower end cap 6 and two microwave energy coupling devices 4, wherein the cylindrical high-Q cavity tube 1, upper end cap 10 and lower end cap 6 touch mutually in the working time to form a cylinder resonant cavity; the position of upper end cap 10 can be continually adjusted in the cylindrical high-Q cavity tube 1, which accomplishes the continual adjustment of high-Q cavity resonant frequency; the microwave energy coupling device 4 lies on two sides of cylindrical high-Q cavity tube 1; the complex dielectric constant measuring device of microwave dielectric medium contains microwave signal source 7, cylinder high-Q resonant cavity 8 and scalar network analyzer 9. The invention can finish the swept-frequency test of microwave dielectric complex dielectric constant due to continual adjusted frequency of cavity resonant.