Analysis and Design of Compact High Gain Microstrip Patch Antenna with Defected Ground Structure for Wireless Applications

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• 作者：Binod Kumar Kanaujia ; Mukesh Kumar Khandelwal…
• 关键词：Antenna ; Dual band ; Defected ground structure (DGS) ; Equivalent circuit ; Microstrip antenna
• 刊名：Wireless Personal Communications
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：91
• 期：2
• 页码：661-678
• 全文大小：3,863 KB
• 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
• 卷排序：91

文摘

Dual band Microstrip-Line-Fed low profile Microstrip Patch Antenna is proposed for wireless applications. A rotated rectangular shaped defect is embedded in the ground plane and fed with a 50-Ω open ended Microstrip-Line. Dual band is achieved at 2.55 and 7.55 GHz. Antenna shows good radiation characteristics with peak gain of 8.1 dBi. Proposed antenna may be used for WiMAX applications with omnidirectional radiation pattern. Theoretical analysis is done for the proposed antenna by equivalent circuit model approach. Further, corners of the rectangular defect are truncated and a defected square ring is inserted inside the truncated-corners-rectangular-defect on the ground plane. 40 % of miniaturization is achieved and antenna starts to respond at 1.55 GHz with better radiation characteristics in both planes. Measured results of fabricated antennas are in good match with theoretical and simulated results.