Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/585268
Title: A Novel Microwave Attenuator on Multilayered Substrate Integrated Waveguide
Authors: Zheng Liu;Lei Zhu;Gaobiao Xiao
subject: Attenuator|relative permittivity|loss tangent|substrate integrated waveguide (SIW)
Year: 2016
Publisher: IEEE
Abstract: In this paper, we propose a novel microwave attenuator based on the multilayered substrate integrated waveguide (SIW). The large loss tangent of Flame Resistant-4 (FR-4) material in the Ku band is employed to design a highly lossy SIW resonator cavity as block element for the exploration of this attenuator. The relative permittivity and loss tangent of FR-4 at high frequency are at first experimentally extracted by testing a fabricated ring resonator on FR-4 substrate. Then the characteristics of single unit of this attenuator versus a few critical geometrical dimensions are studied. Next, an equivalent circuit of this single-unit structure is developed to theoretically predict the propagation characteristics of the designed attenuator in an efficient and effective manner. Finally, an example of SIW-based attenuator is designed and measured. The measured attenuation factor agrees with the simulated and predicted ones in the stopband frequency of our concern. In addition, good impedance matching at input and output ports is satisfactorily realized.
URI: http://localhost/handle/Hannan/166262
http://localhost/handle/Hannan/585268
ISSN: 2156-3950
2156-3985
volume: 6
issue: 7
Appears in Collections:2016

Files in This Item:
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7501865.pdf1.79 MBAdobe PDFThumbnail
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Title: A Novel Microwave Attenuator on Multilayered Substrate Integrated Waveguide
Authors: Zheng Liu;Lei Zhu;Gaobiao Xiao
subject: Attenuator|relative permittivity|loss tangent|substrate integrated waveguide (SIW)
Year: 2016
Publisher: IEEE
Abstract: In this paper, we propose a novel microwave attenuator based on the multilayered substrate integrated waveguide (SIW). The large loss tangent of Flame Resistant-4 (FR-4) material in the Ku band is employed to design a highly lossy SIW resonator cavity as block element for the exploration of this attenuator. The relative permittivity and loss tangent of FR-4 at high frequency are at first experimentally extracted by testing a fabricated ring resonator on FR-4 substrate. Then the characteristics of single unit of this attenuator versus a few critical geometrical dimensions are studied. Next, an equivalent circuit of this single-unit structure is developed to theoretically predict the propagation characteristics of the designed attenuator in an efficient and effective manner. Finally, an example of SIW-based attenuator is designed and measured. The measured attenuation factor agrees with the simulated and predicted ones in the stopband frequency of our concern. In addition, good impedance matching at input and output ports is satisfactorily realized.
URI: http://localhost/handle/Hannan/166262
http://localhost/handle/Hannan/585268
ISSN: 2156-3950
2156-3985
volume: 6
issue: 7
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7501865.pdf1.79 MBAdobe PDFThumbnail
Preview File
Title: A Novel Microwave Attenuator on Multilayered Substrate Integrated Waveguide
Authors: Zheng Liu;Lei Zhu;Gaobiao Xiao
subject: Attenuator|relative permittivity|loss tangent|substrate integrated waveguide (SIW)
Year: 2016
Publisher: IEEE
Abstract: In this paper, we propose a novel microwave attenuator based on the multilayered substrate integrated waveguide (SIW). The large loss tangent of Flame Resistant-4 (FR-4) material in the Ku band is employed to design a highly lossy SIW resonator cavity as block element for the exploration of this attenuator. The relative permittivity and loss tangent of FR-4 at high frequency are at first experimentally extracted by testing a fabricated ring resonator on FR-4 substrate. Then the characteristics of single unit of this attenuator versus a few critical geometrical dimensions are studied. Next, an equivalent circuit of this single-unit structure is developed to theoretically predict the propagation characteristics of the designed attenuator in an efficient and effective manner. Finally, an example of SIW-based attenuator is designed and measured. The measured attenuation factor agrees with the simulated and predicted ones in the stopband frequency of our concern. In addition, good impedance matching at input and output ports is satisfactorily realized.
URI: http://localhost/handle/Hannan/166262
http://localhost/handle/Hannan/585268
ISSN: 2156-3950
2156-3985
volume: 6
issue: 7
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7501865.pdf1.79 MBAdobe PDFThumbnail
Preview File