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Bandwidth Enhanced L-Shaped Patch Antenna with Parasitic Element for 5.8-GHz Wireless Local Area Network Applications

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Abstract

Bandwidth enhancement of a compact microstrip antenna is achieved by using a L-shaped patch and a parasitic patch. The L-shaped patch and the parasitic patch are half-wavelength resonators, and their resonant frequencies close to each other and merge to form a wideband. Moreover, the parasitic patch is loaded along the inner edges of the L-shaped patch to avoid large antenna size. A prototype antenna that covers the 5.8-GHz wireless local area network (WLAN) band is designed. Detailed investigation is conducted and found the two resonant frequencies can be tuned independently. The proposed antenna is fabricated and measured. The measured results obtains an operating band of 5.7–6.08 GHz (6.5 % at 5.89 GHz) for VSWR < 2.5, and cover the 5.8-GHz wireless local area network (WLAN) band. Good radiation patterns are also observed.

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Acknowledgments

This work was supported in part by National Natural Science Foundation of China (Grant Nos. 61401110 & 61371056), in part by Natural Science Foundation of Guangxi (Grant No. 2015GXNSFBA139244), and in part by Program for Innovative Research Team of Guilin University of Electronic Technology.

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Authors and Affiliations

  1. Guangxi Wireless Broadband Communication and Signal Processing Key Laboratory, Guilin University of Electronic Technology, Guilin, 541004, Guangxi, China

    Lin Peng, Yu-jie Qiu, Lai-yi Luo & Xing Jiang

  2. Guangxi Experiment Center of Information Science, Guilin, 541004, Guangxi, China

    Lin Peng & Yu-jie Qiu

Authors
  1. Lin Peng
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  2. Yu-jie Qiu
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  3. Lai-yi Luo
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  4. Xing Jiang
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Correspondence to Lin Peng.

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Peng, L., Qiu, Yj., Luo, Ly. et al. Bandwidth Enhanced L-Shaped Patch Antenna with Parasitic Element for 5.8-GHz Wireless Local Area Network Applications. Wireless Pers Commun 91, 1163–1170 (2016). https://doi.org/10.1007/s11277-016-3519-y

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  • DOI: https://doi.org/10.1007/s11277-016-3519-y

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