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Wideband CPW-Fed Spiral-Shaped Slot Antenna for Wireless Applications

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Abstract

A new compact design of CPW-fed wideband (WB) spiral-shaped slot antenna is proposed. The proposed antenna has a compact size with overall dimensions 37-33 mm and is fabricated on FR4 substrate with dielectric constant ɛ r = 4.4 and thickness h = 1.6 mm. With the different length of the spiral-shaped slots, simulated and experimental results of the antenna are suitable for WB operations. The–10 dB bandwidth of the WB antenna from measurement is approximately 115.2% (2.36–8.53 GHz). The proposed antenna provides nearly omni-directional radiation characteristics. The new antenna configuration operates in several different bands: 2.4, 3.5, 5.2, 5.5, and 5.8 GHz covering 2.4/5.2/5.8 GHz WLAN bands and 2.5/3.5/5.5 GHz WiMAX bands. The results for S11, far-field H- and E-plane radiation patterns and gain of the proposed antennas are presented and discussed. The agreement between measured results and full-wave simulation validates the feasible configuration of the proposed antennas.

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Author information

Authors and Affiliations

  1. Lunghwa University of Science and Technology, Taoyuan City, Taiwan

    Lin-Chuan Tsai

  2. Ming Chi University of Technology, New Taipei, Taiwan

    Wen-Cheng Lai

Authors
  1. Lin-Chuan Tsai
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  2. Wen-Cheng Lai
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Corresponding author

Correspondence to Lin-Chuan Tsai.

Additional information

Original Russian Text © L.-C. Tsai, W.-C. Lai, 2018, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Radioelektronika, 2018, Vol. 61, No. 4, pp. 239–244.

This work was supported by Lunghwa University of Science and Technology under Grant R1301050001.

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Tsai, LC., Lai, WC. Wideband CPW-Fed Spiral-Shaped Slot Antenna for Wireless Applications. Radioelectron.Commun.Syst. 61, 180–183 (2018). https://doi.org/10.3103/S0735272718040052

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  • DOI: https://doi.org/10.3103/S0735272718040052

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