Branch-line coupler using PDMS and Shieldit Super fabric conductor

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• 作者：S. A. Babale ; S. K. A. Rahim ; M. Jusoh ; L. Zahid
• 刊名：Applied Physics A
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：123
• 期：2
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Condensed Matter Physics; Optical and Electronic Materials; Nanotechnology; Characterization and Evaluation of Materials; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0630
• 卷排序：123

文摘

In this paper, a new 3-dB branch-line coupler using PDMS substrate and Shieldit Super fabric conductive material is presented. The Shieldit Super fabric has low resistance less than 0.1/sq. and resulting in good conductivity. Both the simulated and fabricated coupler circuits demonstrated a 3 ± 1 dB fractional bandwidth (FBW) for the coupling as a result of the microstrip-slot created at the ground is in the range of 4.69–7.22 GHz which stands for 42.2%; while the FBW for 90° ± 5°, phase balance is in the range of 5.10–6.94 GHz or 30.70%. Within this range, both the return loss and the isolation are kept below −10 dB.