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<p>This paper presents a multiband inset feed and slot patch antenna. It was built on a FR4 substrate with a loss tangent of 0.02 and a height (h) of 1.66&#xa0;mm, and a dielectric constant of 4.4. These band activities are carried out by using a plus-shaped slot in the patch antenna's entire ground. For the designed antenna to operate in three bands. The suggested multiband antenna features a simple form, a small dimension, and good impedance matching. The recommended antenna was modelled in CST Microwave Studio v2019, an integral-based solution modelling programme, and the results included a return loss of −&#xa0;22.42&#xa0;dB, −&#xa0;17.83&#xa0;dB, and −&#xa0;31.49&#xa0;dB, resonance frequencies of 3.31&#xa0;GHz, 3.85&#xa0;GHz, and 10.042&#xa0;GHz, a VSWR of 1.6, a gain of 1.57 dBi, and an efficiency of 95%. This proposed antenna is ideal for UWB applications that utilize resonance frequencies ranging from 3.1 to 10.6&#xa0;GHz. CST V2019 are used to do all simulations of the proposed design. Recent techniques in UWB antenna design, such as metamaterial loading, defected ground structures (DGS), and reconfigurable slots, have improved bandwidth and miniaturization but often face challenges like complex fabrication, increased cost, and reduced efficiency on low-cost substrates like FR4. Additionally, achieving consistent multiband performance with stable radiation patterns remains difficult. The primary objective of this study is to develop a simple, compact, and cost-effective multiband UWB antenna with good impedance matching and high efficiency, suitable for wireless communication applications across 3.1–10.6&#xa0;GHz.</p>

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Optimization and performance of UWB antennas for wireless communication network

  • 期刊论文

  • 发表日期：

    2025年8月5日

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  • S. Parameswari,
  • Kannadhasan Suriyan

摘要

This paper presents a multiband inset feed and slot patch antenna. It was built on a FR4 substrate with a loss tangent of 0.02 and a height (h) of 1.66 mm, and a dielectric constant of 4.4. These band activities are carried out by using a plus-shaped slot in the patch antenna's entire ground. For the designed antenna to operate in three bands. The suggested multiband antenna features a simple form, a small dimension, and good impedance matching. The recommended antenna was modelled in CST Microwave Studio v2019, an integral-based solution modelling programme, and the results included a return loss of − 22.42 dB, − 17.83 dB, and − 31.49 dB, resonance frequencies of 3.31 GHz, 3.85 GHz, and 10.042 GHz, a VSWR of 1.6, a gain of 1.57 dBi, and an efficiency of 95%. This proposed antenna is ideal for UWB applications that utilize resonance frequencies ranging from 3.1 to 10.6 GHz. CST V2019 are used to do all simulations of the proposed design. Recent techniques in UWB antenna design, such as metamaterial loading, defected ground structures (DGS), and reconfigurable slots, have improved bandwidth and miniaturization but often face challenges like complex fabrication, increased cost, and reduced efficiency on low-cost substrates like FR4. Additionally, achieving consistent multiband performance with stable radiation patterns remains difficult. The primary objective of this study is to develop a simple, compact, and cost-effective multiband UWB antenna with good impedance matching and high efficiency, suitable for wireless communication applications across 3.1–10.6 GHz.