Miniaturization and Bandwidth Enhancement of a Microstrip Patch Antenna Using Magneto-Dielectric Materials for Proximity Fuze Application
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- 作者：Ashish Saini ; Atul Thakur ; Preeti Thakur
- 关键词：Antenna ; BaFe12O19 ; HFSS ; permeability ; permittivity ; bandwidth
- 刊名：Journal of Electronic Materials
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：46
- 期：3
- 页码：1902-1907
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics;
- 出版者：Springer US
- ISSN：1543-186X
- 卷排序：46
文摘
The exact calculation of height of burst has always been a challenge in the design of proximity fuzes. Radio frequency-based sensors can be designed for this purpose but the size and bandwidth of the antenna increases the design complexity; hence, miniaturization of the patch antenna using barium hexaferrite (BaFe12O19) as substrate material is proposed in this paper. The nanohexaferrite substrate material was prepared using a wet chemical method and characterized for structural and electromagnetic properties. An average crystallite size of 60 nm was obtained from x-ray diffraction. Scanning electron microscopy and transmission electron microscopy also confirms the formation of homogenous nanoferrites. Complex permittivity (ɛ* = 6.2 − 0.04 j) and complex permeability (μ* = 1.9 − 0.18 j) were obtained from electromagnetic characterization. The antenna structure fabricated and simulated confirms that, with the obtained electromagnetic parameters of synthesized magneto-dielectric material, the size of antenna can be reduced up to 42.5%. It also increases the bandwidth from 68 MHz to 166 MHz with respect to antenna on FR4 substrate. Therefore, BaFe12O19 is proposed as a suitable candidate for a high-bandwidth, miniaturized antenna for proximity fuzes.