低形宽带过天线用于车辆对车辆的应用
1School of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.
Sensors (Basel, Switzerland)
|August 14, 2025
概括
本研究介绍了用于6GHz以下通信的紧型过天线,实现了35.9%的带宽. 它独特的设计增强了过,并确保可靠的V2V系统稳定的辐射模式.
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:
- 低于6 GHz的通信系统需要高效和紧的天线.
- 过天线对于减轻干扰和提高信号质量至关重要.
- 现有的设计经常面临尺寸,带宽和过性能之间的权衡.
研究的目的:
- 为6GHz以下应用提供一个紧的,宽带的,低形的过天线.
- 用特征模式分析阐明操作机制.
- 为了验证天线的性能,用于车辆到车辆 (V2V) 通信系统.
主要方法:
- 用于辐射元件的特征模式分析 (CMA).
- 为当前取消和辐射零值进行设计优化.
- 测量S参数 (S11) 和辐射模式.
主要成果:
- 实现了35.9% (4.3-6.4 GHz) 的广泛运行带宽,S11 ≤ -10 dB.
- 在主要方向展示了两个辐射零点,增强了过.
- 保持稳定的宽侧辐射模式,峰值增益为6.14dBi,最小增益波动 (<1dBi) 从4.6-6.45GHz.
- 紧型天线尺寸为25 × 25 mm2.2,可以使用
结论:
- 拟议的过天线为6GHz以下通信提供了引人注目的解决方案,因为其带宽宽,有效的过和稳定的辐射.
- 该设计非常适合V2V系统,需要在指定的频段内提供可靠和强大的性能.
- 特性模式分析在理解和优化天线的过机制方面被证明是有效的.
相关概念视频
01:27Passive Filters
607
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
607
01:25Active Filters
924
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
924
01:12Mesh Analysis for AC Circuits
419
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...
419
01:23Transmission Line Design Considerations
213
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...
213
01:24Bus Impedance Matrix
175
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,...
175
01:23Design Example
372
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...
372