设计一种基于增强性能宽带毫米波天线的新型混合技术,用于短距离通信
Tanvir Islam1, Dildar Hussain2, Fahad N Alsunaydih3
1Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA.
Sensors (Basel, Switzerland)
|May 25, 2024
概括
本研究介绍了一种用于毫米波通信的紧型4端口多输入多输出 (MIMO) 天线. 新的设计增强了增益和带宽,同时显著减少了合,优于现有系统的性能.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
背景情况:
- 毫米波 (mmWave) 频率对于高速,短程通信系统至关重要.
- 现有的多输入多输出 (MIMO) 天线经常面临尺寸,合和毫米波频段的性能方面的挑战.
研究的目的:
- 为毫米波应用设计和验证一款高性能,紧的4端口MIMO天线.
- 改进包括增益,带宽和隔离在内的关键天线参数,同时保持低调.
主要方法:
- 一个单一的天线元件是通过在罗杰RT/Duroid 6002基板上整合长方形和圆形补丁与槽来设计的.
- 通过使用具有寄生虫补丁和缺陷地面结构 (DGS) 的新型解结构,实现了4端口MIMO配置.
- 使用Ansys HFSS进行了电磁模拟,随后进行了原型制造和测试.
主要成果:
- 拟议的MIMO天线实现了合的显著减少,从-17.25dB降至-44dB.
- 增益从9.25 dBi提高到11.9 dBi,带宽从26.5-30.5 GHz扩大到25.5-30.5 GHz.
- 展示了优秀的MIMO性能参数,包括低的包裹相关系数 (ECC),高多样性增益 (DG),低频道容量损失 (CCL) 和有利的平均有效增益 (MEG).
结论:
- 设计的4个端口的MIMO天线提供了优越的性能特征,与现有的文献相比,用于毫米波应用.
- 新型解结构有效地减少了相互合,并提高了天线的整体效率.
- 制造的原型验证了模拟结果,证实了天线适用于短距离通信系统的适用性.
相关概念视频
Standing Waves in a Cavity
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Mesh Analysis for AC Circuits
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
Design Example
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
The Midpoint Formula
In coordinate geometry, determining the central point between two locations is common. This central point, or midpoint, lies exactly halfway along the line segment connecting two points in a two-dimensional space. It has applications in mathematics, physics, engineering, and various planning disciplines.Given two points labeled as A (x1, y1) and B (x2, y2) on a coordinate plane, a straight line segment can be plotted between them. The midpoint, labeled point M, divides this segment into two...


