A measurement of complex permittivity of lossy dielectrics by using flanged rectangular waveguide
β Scribed by Makoto Hirano; Masaharu Takahashi; Minoru Abe
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 248 KB
- Volume
- 84
- Category
- Article
- ISSN
- 8756-663X
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π SIMILAR VOLUMES
## Abstract In this paper, the reflection coefficient of a flanged rectangular waveguide radiating into a dielectric slab is rigorously studied with the Fourier transform and modeβmatching technique. Residue calculus is used to convert the reflection coefficient into rapidly convergent series. Comp
## Abstract A new measurement technique is presented to determine the complex permittivity of a dielectric material. The dielectric sample is loaded in a shortβcircuited rectangular waveguide. The reflection coefficient of the waveguide is measured by Network analyzer and calculated as a function o
< 2 . Figure 4 Power transmission coefficient S and reflection 21 Ε½< < 2 . coefficient S in T-junction with impedance-matching disks. 11 Ε½ . < < 2 Ε½ . < < 2 a S , b S 21 11 increased from the corresponding values of an empty T-junction; thus, the disks act as impedance-matching plates. If the disks
The complex permitti¨ity of low-loss dielectric materials ( ) ABS and graft polymer in the 94 GHz band is measured using the free-space method. The ¨alidity of the free-space method at 94 GHz is confirmed, and the data of the complex permitti¨ity of these materials are presented.