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<p>This article aims to provide an innovative antenna suitable for ultrawideband (UWB) integrated with partial Ku band applications. The antenna is a two-port multiple-input multiple-output (MIMO) element that is printed on FR4 substrate and has a compact dimension of 39.5 × 22 mm<sup>2</sup>. An elliptically shaped defective ground structure forms the substrate's bottom plane, and a tapered feed connects to a distinctive floral slotted patch on top. The proposed 2-port MIMO is operating between 4.69 and 16.01&#xa0;GHz, which makes it fit for UWB (3.1–10.6&#xa0;GHz) and partly Ku band (12–18&#xa0;GHz) applications.&#xa0;The antenna design incorporates a rectangular parasitic element among the radiating elements to achieve excellent diversity performance. These characteristics include an envelope correlation coefficient (ECC) of 0.0002, a diversity gain (DG) of approximately 10, and a mean effective gain (MEG) of less than − 3.01&#xa0;dB. This makes the antenna an ideal choice for use in UWB integrated with a portion of Ku-band applications.</p>

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A Novel Compact MIMO-UWB Antenna with Improved Isolation by Using Parasitic

  • 期刊论文

  • 发表日期：

    2025年8月6日

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  • V. N. Koteswara Rao Devana,
  • P. Bala Murali Krishna,
  • Dhana Raj Valluri,
  • Praveenkumar Seepana,
  • Ch. V. Ravi Sankar,
  • Vishnu Vardhana Reddy Karna,
  • Chandrasekhar Savanam

摘要

This article aims to provide an innovative antenna suitable for ultrawideband (UWB) integrated with partial Ku band applications. The antenna is a two-port multiple-input multiple-output (MIMO) element that is printed on FR4 substrate and has a compact dimension of 39.5 × 22 mm2. An elliptically shaped defective ground structure forms the substrate's bottom plane, and a tapered feed connects to a distinctive floral slotted patch on top. The proposed 2-port MIMO is operating between 4.69 and 16.01 GHz, which makes it fit for UWB (3.1–10.6 GHz) and partly Ku band (12–18 GHz) applications. The antenna design incorporates a rectangular parasitic element among the radiating elements to achieve excellent diversity performance. These characteristics include an envelope correlation coefficient (ECC) of 0.0002, a diversity gain (DG) of approximately 10, and a mean effective gain (MEG) of less than − 3.01 dB. This makes the antenna an ideal choice for use in UWB integrated with a portion of Ku-band applications.