高选择性口带超宽带天线:一篇评论
Anees Abbas1, Wahaj Abbas Awan1, Niamat Hussain2
1Department of Information and Communication Engineering, Chungbuk National University, Cheongju, South Korea.
Heliyon
|February 5, 2025
概括
本综述探讨了用于超宽带 (UWB) 系统的近乎完美的高档带天线. 它详细介绍了EBG和SRR等技术,以防止干扰现有的无线技术.
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:
- 超宽带 (UWB) 技术可实现高容量,低功耗的短距离通信.
- 设计UWB天线是具有挑战性的,因为它可能会干扰Wi-Fi和5G等现有的带宽有限技术.
- 用于减轻干扰的外部过器是庞大而昂贵的.
研究的目的:
- 提供关于准完美高档UWB频段天线的综合文献综述.
- 提供关于减轻UWB频谱内的窄带信号干扰的技术的见解.
- 为高效无线通信提供创新的天线设计提供更清晰的概述.
主要方法:
- 关于报道的准完美级别UWB频段天线的综合文献综述.
- 详细检查各种带技术.
- 分析方法,包括电磁带间隙 (EBG) 结构,分割环共振器 (SRR),槽蚀刻和断片.
主要成果:
- 识别和分类各种技术,以实现UWB天线中近乎完美的口带.
- 证明了EBG,SRR,插槽蚀刻和断片等方法在缓解干扰方面的有效性.
- 突出了天线设计的创新,以克服外部过的局限性.
结论:
- 几乎完美的高频带天线对于减轻人口密集的无线网络干扰至关重要.
- 不同的集成技术有效地抑制了没有外部过器的窄带干扰.
- 进一步研究创新的天线设计对于推进UWB通信至关重要.
相关概念视频
01:17Bandpass Sampling
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In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
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01:23Parallel Resonance
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The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
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01:24Characteristics of Series Resonant Circuit
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Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
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