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<p>In this paper, a compact CPW-fed E-slotted microstrip patch antenna with T-shaped defected ground structure (DGS) is designed and experimentally demonstrated for multi-band wireless application. The fabricated antenna on low-cost FR-4 substrate has overall dimension of 20 × 20 × 1.6 mm<sup>3</sup>. An incremental design approach has been used and the design started with conventional CPW-fed patch. Then an E-slot is introduced in radiating element and a T-slot DGS in the ground line to improve the impedance matching and radiation performance. The proposed antenna operates in tri-band at 2.4&#xa0;GHz, 6&#xa0;GHz and 8&#xa0;GHz. The measured results agree well with the simulated results. A maximum realized gain of 5.4 dBi is achieved where S<sub>11</sub> is below − 10 dB in the all operating bands. The proposed antenna, due to its small size, multi-band operation and stable radiation characteristics, is suitable for modern wireless communication system.</p>

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Design of a CPW-Fed E-slotted patch antenna with defected ground structure for wireless applications

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  • 出版模式：

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  • 发表日期：

    2026年5月19日

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  • Touko Tcheutou Stephane Borel,
  • Rashmi Priyadarshini

摘要

In this paper, a compact CPW-fed E-slotted microstrip patch antenna with T-shaped defected ground structure (DGS) is designed and experimentally demonstrated for multi-band wireless application. The fabricated antenna on low-cost FR-4 substrate has overall dimension of 20 × 20 × 1.6 mm3. An incremental design approach has been used and the design started with conventional CPW-fed patch. Then an E-slot is introduced in radiating element and a T-slot DGS in the ground line to improve the impedance matching and radiation performance. The proposed antenna operates in tri-band at 2.4 GHz, 6 GHz and 8 GHz. The measured results agree well with the simulated results. A maximum realized gain of 5.4 dBi is achieved where S11 is below − 10 dB in the all operating bands. The proposed antenna, due to its small size, multi-band operation and stable radiation characteristics, is suitable for modern wireless communication system.