一个高度解和紧的共同循环极化MIMO过天线阵列系统用于车载通信
Amit Kumar1, Sandeep Rana1, Gunjan Srivastava2
1Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
Scientific reports
|November 27, 2025
概括
一个新的小型过天线阵列系统用于车辆通信提供高隔离和清晰的过. 这种设计增强了车辆的连接性,并支持可持续的运输目标.
科学领域:
- 电磁和天线工程 电磁和天线工程
- 无线通信无线通信
- 微波工程 微波工程
背景情况:
- 车载通信系统需要高性能天线来实现可靠的数据传输.
- 现有的天线解决方案经常面临隔离和带外信号拒绝的挑战.
- 对于新兴的汽车技术来说,需要可扩展和适应的天线系统至关重要.
研究的目的:
- 为了呈现一个新的紧,单层,四元多输入多输出 (MIMO) 过天线阵列.
- 为了实现车载通信应用的高端口隔离和尖的带外频率抑制.
- 展示该系统在支持可持续和智能运输方面的潜力.
主要方法:
- 设计了一种使用三极发针共振器式带通波器的序列相位供应网络,取代了传统的输电线路.
- 在2x2配置中使用了顺序旋转的角截断的矩形补丁天线.
- 采用结构和优化的元素旋转 (120°) 来实现电磁场封闭,以增强隔离.
主要成果:
- 实现了超过24dB (下止带) 和36dB (上止带) 的带外频率抑制.
- 在5.4-6.3 GHz运行带宽中表现出优异的端口间隔离,超过34dB.
- 证明了20%的-10dB阻抗带宽 (5.3-6.5GHz) 和15.4% (5.4-6.3GHz) 的3dB轴比带宽.
- 制造的原型实现了11.3dBic的峰值实现增益和10.5dBic的平均实现增益.
结论:
- 拟议的MIMO过天线阵列系统为车辆通信提供了一个紧而高效的解决方案.
- 新的设计提供了卓越的隔离和过特性,对于可靠的无线连接至关重要.
- 该系统与联合国可持续发展目标保持一致,促进智能和可持续的交通基础设施.
更多相关视频
07:14Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
Published on: May 1, 2018
8.1K
09:36Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
Published on: June 25, 2021
3.4K
相关概念视频
Mesh Analysis for AC Circuits
650
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...
650
Bus Impedance Matrix
488
Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
488
Design Example
520
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...
520
Transmission Line Design Considerations
579
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
579
The Antenna Complex
7.5K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
7.5K
Energy Stored In A Coaxial Cable
2.0K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
2.0K
