Design of Ultra Wideband 3?dB Coupled-Line Coupler and 90° Power Divider with Zig-Zag-Shaped Slot for Wireless Communication Applications

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• 作者：Khairul Huda Yusof ; Norhudah Seman…
• 关键词：Coupled ; line ; Coupler ; Power divider ; Ultra wideband ; Zig ; zag ; shaped slot
• 刊名：Wireless Personal Communications
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：84
• 期：4
• 页码：2599-2611
• 全文大小：1,691 KB
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• 作者单位：Khairul Huda Yusof (1)
  Norhudah Seman (1)
  Mohd Haizal Jamaluddin (1)
  Dyg Norkhairunnisa Abang Zaidel (1)
  
  1. Wireless Communication Centre (WCC), Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Signal,Image and Speech Processing
  Processor Architectures
  
• 出版者：Springer Netherlands
• ISSN：1572-834X

文摘

This paper proposes the new design of compact ultra wideband (UWB) 3 dB coupled-line coupler and 90° power divider. The proposed coupler utilizes zig-zag-shaped slot at the ground plane underneath microstrip coupled-line to enhance the bandwidth and coupling strength significantly. The technique has alleviated the need of a very narrow spacing between parallel coupled-line for easier fabrication process. The proposed coupler is then being implemented into the new proposed structure of 90° power divider that requires an appropriate phase difference of ?0° with equal power division across UWB frequency range. The design of 3 dB coupled-line coupler and 90° power divider are realized using Rogers TMM4 substrate, which simulated by using CST Microwave Studio. Excellent UWB performances are achieved in terms of input reflection coefficient, isolation, coupling factor and transmission coefficients. Keywords Coupled-line Coupler Power divider Ultra wideband Zig-zag-shaped slot