紧凑型纺织品MIMO天线，可重构双频段陷波特性，用于超宽带应用

2021 IEEE Indian Conference on Antennas and Propagation (InCAP) Pub Date : 2021-12-13 DOI:10.1109/InCAP52216.2021.9726273

Bharghava Punna, Pachiyaannan Muthusamy

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引用次数: 1

摘要

提出了一种具有双频段陷波特性的小型纺织MIMO天线，用于超宽带应用。MIMO天线由两个相互正交的辐射单极元组成，具有倒u型槽和用于双频段分配的u型槽。辐射元件的正交放置在两个输入端口之间提供了足够的隔离量，并且在整个频率工作范围内实现了小于- 22dB的隔离。总MIMO天线系统的体积为20mm × 32mm × 1mm。由于辐射元件的正交放置，得到了极化分集。通过在提供陷波特性的槽中放置PIN二极管，可以获得带陷波的可重构性，两个单极子之间的包络相关系数小于0.01。该天线以牛仔布为衬底，介电常数为1.67，阻抗带宽为3.38 ~ 12.78GHz，带两个陷波带。一个陷波带从5.12GHz到5.5GHz覆盖WLAN频段，另一个陷波带从7.98GHz到11.4GHz覆盖x频段。由于单极体具有宽频带的特性，因此当单极体安装在人体上时，单极体在所需波段保持匹配。

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Compact Textile MIMO Antenna with Reconfigurable Dual Band Notching Characteristics for UWB Applications

A compact textile MIMO antenna is presented with dual band notching characteristics for UWB applications. The proposed MIMO antenna consists of two radiating monopole elements placed orthogonal to each other with inverted U-shaped slot and U-shaped slot for dual band dispensing. The orthogonal placement of radiating elements provides sufficient amount of isolation between the two input ports and isolation of less than −22dB is achieved for entire range of frequency operation. A total volume of 20mm x 32mm x 1mm is occupied by total MIMO antenna system. Polarization diversity is obtained because of the orthogonal placement of radiating elements. By using PIN diode placed in the slots provided for notching characteristics, reconfigurable nature of band notches can be obtained The envelope correlation coefficient is less than 0.01 between the two monopoles. The suggested antenna is considered jeans cloth as substrate with dielectric constant of 1.67 and it has impedance bandwidth from 3.38GHz to 12.78GHz with two notch bands. One notch band is from 5.12GHz to 5.5GHz covering WLAN band and another notch band is from 7.98GHz to 11.4GHz covering X-band. Because of the broad bandwidth nature, the monopole radiators remain matched at the required band when upon the body.

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来源期刊

2021 IEEE Indian Conference on Antennas and Propagation (InCAP)

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