Cylindrical waveguide resonant cavity
A waveguide resonant, cylindrical technology, applied in the field of microwave testing, can solve problems such as test influence, and achieve the effect of improving measurement accuracy
Inactive Publication Date: 2010-08-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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However, there are still a large number of interference modes i...
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The invention provides a cylindrical waveguide resonant cavity, belongs to the technical field of microwave testing and relates to technology for measuring electrical parameters of microwave dielectrics, in particular to an TM0n0 mode cylindrical waveguide resonant cavity for measuring the electrical parameters of rod-shaped dielectric materials. Based on the prior cylindrical waveguide resonant cavity, a large amount of non-TM0n0 interference modes are inhibited by means of slotting in a radial direction along the cavity wall, so the resonance of a TM0n0 work mode is strengthened, and the measurement accuracy of the electrical parameters of dielectric rods is improved.
Description
technical field The invention belongs to the technical field of microwave testing, and relates to a microwave dielectric electric parameter measurement technology, in particular to a TM0n0 mode cylindrical waveguide resonant cavity for measuring the electric parameter of a rod-shaped dielectric material. Background technique The TM0n0 mode cylindrical waveguide resonator is a microwave resonator, which can be used to measure the dielectric constant, loss tangent and other electrical parameters of the rod-shaped medium. The common TM0n0 cylindrical resonator is machined with brass, and the surface is plated with silver to improve the inherent quality factor of the cavity. Coupling rings are used to excite both sides of the cavity wall to generate resonance in the cavity. Choose different n, its resonant frequency is different. The measurement is carried out with TM0n0 working modes with different n, that is, the measurement of the microwave dielectric properties of the meas...
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Inventor 郭高凤徐汝军李恩周扬唐晓明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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