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<p>This study investigates the performance of a compact UWB 4 × 4 Multiple Input Multiple Output (MIMO) antenna for transceiver applications that uses the asymmetric tilting microstrip feeding (ATMF) line and attained a dimension of 0.549λ × 0.549λ mm<sup>2</sup>. A tilted open-ended slot in the ground plane and chopped radiators provide an 8.98&#xa0;GHz bandwidth from 3.52&#xa0;GHz to 12.5&#xa0;GHz. Using a ring decoupling structure, the proposed antenna achieved isolation &gt; 20.37 dB with a 6.07 dB peak gain and a maximum 93.8% total efficiency. It is found that the simulated diversity parameters ECC, TARC, DG, CCL, and MEG are adequate. The suggested antenna, along with a transmit power divider and a receive power combiner, is used to make a Simultaneous Transmit and Receive (STAR) system. An isolation larger than 20 dB between the transmit (TX) and receive (RX) antenna elements on the same MIMO antenna is achieved. Additionally, the path loss and signal-to-noise ratio (SNR) are assessed to determine the channel capacity (CC) of propagation channels created between the suggested antenna and a 4-port multi-ring MIMO antenna. In the 3–6&#xa0;GHz range, the maximum CC is 4.63 bps/Hz for a single TX antenna, 12.75 bps/Hz for two TX antennas, 16.87 bps/Hz for three TX antennas, and 22.53 bps/Hz for four TX antennas with four RX antennas. The results also confirm that CC remains almost constant in this frequency band. The suggested antenna can therefore be utilized in high-capacity wireless propagation channels, according to these measurement results.</p>

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Performance of 4 × 4 ring decoupling structure-based UWB MIMO antennas for transceiver applications in simultaneous transmit and receive configuration

  • 期刊论文

  • 发表日期：

    2026年5月12日

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  • Shailesh,
  • Sandhya Malikar Patel,
  • Kamlesh Patel

摘要

This study investigates the performance of a compact UWB 4 × 4 Multiple Input Multiple Output (MIMO) antenna for transceiver applications that uses the asymmetric tilting microstrip feeding (ATMF) line and attained a dimension of 0.549λ × 0.549λ mm2. A tilted open-ended slot in the ground plane and chopped radiators provide an 8.98 GHz bandwidth from 3.52 GHz to 12.5 GHz. Using a ring decoupling structure, the proposed antenna achieved isolation > 20.37 dB with a 6.07 dB peak gain and a maximum 93.8% total efficiency. It is found that the simulated diversity parameters ECC, TARC, DG, CCL, and MEG are adequate. The suggested antenna, along with a transmit power divider and a receive power combiner, is used to make a Simultaneous Transmit and Receive (STAR) system. An isolation larger than 20 dB between the transmit (TX) and receive (RX) antenna elements on the same MIMO antenna is achieved. Additionally, the path loss and signal-to-noise ratio (SNR) are assessed to determine the channel capacity (CC) of propagation channels created between the suggested antenna and a 4-port multi-ring MIMO antenna. In the 3–6 GHz range, the maximum CC is 4.63 bps/Hz for a single TX antenna, 12.75 bps/Hz for two TX antennas, 16.87 bps/Hz for three TX antennas, and 22.53 bps/Hz for four TX antennas with four RX antennas. The results also confirm that CC remains almost constant in this frequency band. The suggested antenna can therefore be utilized in high-capacity wireless propagation channels, according to these measurement results.