Microwave electromagnetic shielding effectiveness of ZnNb 2 O 6 -chopped strands composites for radar and wideband (6.5–18 GHz) applications
In this study, the traditional mixed oxide process was used to create ZnNb 2 O 6 -chopped strands composites. The single phase compound with the chemical formula ZnNb 2 O 6 was generated after sintering at 1100°C for 4 h. For the structural investigation, various quantities of ZnNb 2 O 6 -chopped st...
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| Published in | Lithuanian journal of physics Vol. 62; no. 3 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
25.10.2022
|
| Online Access | Get full text |
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| Summary: | In this study, the traditional mixed oxide process was used to create ZnNb
2
O
6
-chopped strands composites. The single phase compound with the chemical formula ZnNb
2
O
6
was generated after sintering at 1100°C for 4 h. For the structural investigation, various quantities of ZnNb
2
O
6
-chopped strands were generated. X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were carried out for the structural analysis, which indicated that the second phase did not form in ZnNb
2
O
6
. Additionally, the ZnNb
2
O
6
-strands composites were manufactured by hot pressing using the compositions of ZnNb
2
O
6
-chopped strands in various proportions and epoxy. The ZnNb
2
O
6
-chopped strands compound formed in various weights, and epoxy resin were used to fabricate microwave shielding effectiveness composites. Utilizing a network analyzer, the microwave shielding effect of ZnNb
2
O
6
-chopped strands composites was investigated in a range of 6.5–18 GHz. At a thickness of 1.5 mm, a minimum of –51.32 dB shielding effectiveness value was achieved at 6.75 GHz. The ZnNb
2
O
6
-chopped strands compounds were produced as composite and their features were characterized for shielding effectivacy. The content of components in the samples may be managed for the larger and needed frequency bands to change the microwave shielding performance. |
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| ISSN: | 1648-8504 2424-3647 |
| DOI: | 10.3952/physics.v62i3.4799 |