Performance evaluation of micromachined fabricated multiband horn-shaped slotted patch antenna

详细信息    查看全文

• 作者：Rajat Arora ; Shashi B. Rana ; Sandeep Arya…
• 刊名：Journal of Computational Electronics
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：15
• 期：3
• 页码：1028-1039
• 全文大小：6,374 KB
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Optical and Electronic Materials
  Mathematical and Computational Physics
  Applied Mathematics and Computational Methods of Engineering
  Mechanical Engineering
  
• 出版者：Springer Netherlands
• ISSN：1572-8137
• 卷排序：15

文摘

In this research work, a 2-inch p-type silicon (Si) wafer with high dielectric constant (11.9) was used as a substrate to minimize substrate conductivity losses, thereby improving the antenna radiation efficiency. A thin gold (Au) film with dimensions of \(350\times 260\times 2\,\upmu \mathrm{m}^{3}\) was deposited on the substrate. Four thin slots having the same dimensions of \(20\times 5\times 2\,\upmu \mathrm{m}^{3}\) were cut from the gold patch to create four different notches, thus forming a horn-shaped multiband microantenna. To evaluate the performance of this useful structure, a horn-shaped patch antenna was designed to achieve operation in multiple frequency bands, namely the C band (6.75 GHz), Ku band (14.734 and 17.76 GHz), and K band (22.45 GHz). To validate the design, various parameters such as the return loss and radiation patterns were obtained experimentally for the fabricated antenna and compared with results from the Ansoft high-frequency structure simulator (HFSS) tool. The simulated and experimental results were found to show good agreement. Ideally, the slots in the horn-shaped patch antenna should be made very thin to achieve a wide impedance bandwidth of 31 %, for \({\vert }{S}_{11}{\vert } \le -10\,\hbox {dB}\) from 6.75 to 23.15 GHz with high gain and unidirectional radiation pattern for all resonant frequencies.KeywordsPatch antennaRadiation patternReturn lossVSWRBandwidthSlots