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Publishing Language: Chinese

Design of ferrite-based broadband high gain microstrip antenna

College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
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Abstract

Objectives

In order to effectively improve the gain and bandwidth of antennae, a low-cost and tunable stacked microstrip antenna based on ferrite is proposed for WLAN.

Methods

By adopting magnetic ferrite as the substrate of the microstrip antenna, its performance and response to external electromagnetic fields can be adjusted. Its directional characteristics can also be tuned via a laminated substrate structure to improve the gain. By arranging elliptical parasitic patches in a clockwise direction around the metal patch, the bandwidth characteristics of the antenna can be effectively improved.

Results

The measured data and simulation results are in good agreement, covering the entire frequency band range of 5.15–5.35 GHz in the WLAN system. According to the test results, the relative bandwidth of the antenna in the C-band is 19% and its highest gain is 9.15 dBi.

Conclusions

The results of this study can provide references for the design of miniaturized and magnetically tunable antennas.

Keywords

microstrip antennaadjustable tunable antennaferriteparasitic patch
CLC number: U665.26；TN823 Document code: A

References

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Chinese Journal of Ship Research
Volume 17 Issue 4,
August 2022
Pages 134-138
DOI: 10.19693/j.issn.1673-3185.02582

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Cite this article:
CHEN P, LI G. Design of ferrite-based broadband high gain microstrip antenna. Chinese Journal of Ship Research, 2022, 17(4): 134-138. https://doi.org/10.19693/j.issn.1673-3185.02582

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Received: 05 November 2021
Revised: 17 May 2022
Published: 16 August 2022
© 2022 Chinese Journal of Ship Research.