Abstract

Multi-Input Multi-Output (MIMO) is the need for recent communication system for the enhancement of channel capacity. While the number of antenna array elements increased, the spacing between the array elements and size of the antenna reduced. Hence high coupling between the elements occur, and thus the channel capacity reduced. There were several existing methods employs, however there were some limitations like reduced gain, dielectric constant, and bandwidth. So as to overcome this and to increase the performance characteristics such as bandwidth, gain of MIMO antennas and to lessen the dielectric constant of substrate material this proposed scheme is introduced. Using these considerations and requirements, an array of two-element MIMO system will be designed and developed with a less dielectric material (\( \varvec{\varepsilon}_{{\varvec{r }}} < 4 \)). So in this Taconic RF-35 (dielectric constant is 3.5), Two T-Shaped antennas are employed for 2.45 GHz (ISM band) with multiple modes of operation to achieve the improved bandwidth of about − 10 db. Simulation is done by HFSS 13.0.

中文翻译：

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用于mimo应用的平面天线阵列的设计与开发

摘要

为了增强信道容量，最近的通信系统需要多输入多输出（MIMO）。当天线阵列元件的数量增加时，阵列元件之间的间隔和天线尺寸减小。因此，在元件之间发生高耦合，并且因此减小了信道容量。现有几种使用方法，但是存在一些局限性，例如增益降低，​​介电常数和带宽降低。为了克服这个问题并增加诸如带宽，MIMO天线的增益之类的性能特征并减小衬底材料的介电常数，本文提出了该方案。基于这些考虑和要求，将设计和开发一种具有更少介电材料的两元素MIMO系统阵列（\（\ varvec {\ varepsilon} _ {{\\ varvec {r}}} <4 \））。因此，在此Taconic RF-35（介电常数为3.5）中，两个T形天线用于2.45 GHz（ISM频段），具有多种工作模式，以实现约-10 db的改进带宽。仿真由HFSS 13.0完成。