Kannappan Lekha, Palaniswamy Sandeep Kumar, Kanagasabai Malathi, Kumar Preetam, Alsath M Gulam Nabi, Kumar Sachin, Rao Thipparaju Rama, Marey Mohamed, Aggarwal Apeksha, Pakkathillam Jayaram K
Department of Electronics and Communication Engineering, SRM Institute of Science and Technology, Kattankulathur, 603203, India.
Department of Electronics and Communication Engineering, College of Engineering, Guindy, Anna University, Chennai, 600025, India.
Sci Rep. 2022 Jan 10;12(1):403. doi: 10.1038/s41598-021-04318-0.
This paper presents a twelve-port ultra-wideband multiple-input-multiple-output (MIMO)/diversity antenna integrated with GSM and Bluetooth bands. The twelve-port antenna is constructed by arranging four elements in the horizontal plane and eight elements in the vertical plane. The antenna element, which is created using a simple rectangular monopole, exhibits a frequency range of 3.1 to 12 GHz. The additional Bluetooth and GSM bands are achieved by introducing stubs into the ground plane. The size of the MIMO antenna is 100 × 100 mm. The antenna offers polarization diversity, with vertical and horizontal polarization in each plane. The diversity antenna has a bandwidth of 1.7-1.9 GHz, 2.35-2.55 GHz, and 3-12 GHz, the radiation efficiency of 90%, and peak gain of 2.19 dBi. The proposed antenna offers an envelope correlation coefficient of < 0.12, apparent diversity gain of > 9.9 dB, effective diversity gain of > 8.9 dB, mean effective gain of < 1 dB, and channel capacity loss of < 0.35 bits/s/Hz. Also, the MIMO antenna is tested for housing effects in order to determine its suitability for automotive applications.
本文介绍了一种集成了GSM和蓝牙频段的十二端口超宽带多输入多输出（MIMO）/分集天线。该十二端口天线通过在水平面上布置四个元件和在垂直面上布置八个元件构成。天线元件采用简单的矩形单极子制成，其频率范围为3.1至12 GHz。通过在接地平面中引入短截线来实现额外的蓝牙和GSM频段。MIMO天线的尺寸为100×100 mm。该天线提供极化分集，每个平面内具有垂直极化和水平极化。分集天线的带宽为1.7 - 1.9 GHz、2.35 - 2.55 GHz和3 - 12 GHz，辐射效率为90%，峰值增益为2.19 dBi。所提出的天线的包络相关系数<0.12，视在分集增益>9.9 dB，有效分集增益>8.9 dB，平均有效增益<1 dB，信道容量损失<0.35比特/秒/赫兹。此外，对MIMO天线进行了外壳效应测试，以确定其在汽车应用中的适用性。
