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Dirac leaky wave antenna for millimetre-wave applications
IET Microwaves, Antennas & Propagation ( IF 1.7 ) Pub Date : 2020-07-27 , DOI: 10.1049/iet-map.2020.0047 Sina Rezaee 1 , Mohammad Memarian 1 , George V. Eleftheriades 2
IET Microwaves, Antennas & Propagation ( IF 1.7 ) Pub Date : 2020-07-27 , DOI: 10.1049/iet-map.2020.0047 Sina Rezaee 1 , Mohammad Memarian 1 , George V. Eleftheriades 2
Affiliation
Dirac dispersion cones enable remarkable wave phenomena in electronics as well as electromagnetic systems. In this work, the authors experimentally demonstrate for the first time the Dirac leaky wave antennas (DLWAs) at millimetre-wave (mm-wave) frequencies. The demonstrated DLWAs are implemented in the substrate integrated waveguide technology, delivering unprecedented features at high frequencies such as radiation at, and continuous beam scanning through broadside, with ease of fabrication, making these designs well suited for mm-wave applications such as emerging fifth generation and Internet of Things, radar and imaging. It is shown that a planar Dirac photonic crystal can be realised composed of air columns inside a host SIW waveguide, exhibiting a closed bandgap and linear dispersion around broadside. Phase and attenuation constants are controlled to obtain directive beam and scanning in a wide range of angles (from −30° to 20°). The presented DLWAs have a wide impedance bandwidth around 28 GHz with high efficiency, and operate with peak gains of about 16 dBi with <1 dB gain variation throughout the frequency range from 25 to 31 GHz. Several designs have been proposed, and their prototypes were fabricated using standard substrates. Measured results show excellent agreement with the simulated results, validating the proposed concepts.
中文翻译:
Dirac泄漏波天线,用于毫米波应用
狄拉克色散锥使电子产品以及电磁系统中产生显着的波动现象。在这项工作中,作者首次通过实验演示了毫米波(mm-wave)频率的狄拉克泄漏波天线(DLWA)。演示的DLWA在基板集成波导技术中实现,在高频下提供了前所未有的功能(例如辐射),并通过宽边进行连续光束扫描,并且易于制造,使这些设计非常适合毫米波应用(例如新兴的第五代)物联网,雷达和成像。结果表明,平面的狄拉克光子晶体可以由主SIW波导内部的气柱组成,并呈现出封闭的带隙和围绕宽边的线性色散。控制相位和衰减常数,以获得定向光束并在宽角度范围(-30°至20°)中进行扫描。所提出的DLWA具有高效率的28 GHz左右的宽阻抗带宽,并且在从25到31 GHz的整个频率范围内,峰值增益约为16 dBi,增益变化小于1 dB。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。
更新日期:2020-07-28
中文翻译:
Dirac泄漏波天线,用于毫米波应用
狄拉克色散锥使电子产品以及电磁系统中产生显着的波动现象。在这项工作中,作者首次通过实验演示了毫米波(mm-wave)频率的狄拉克泄漏波天线(DLWA)。演示的DLWA在基板集成波导技术中实现,在高频下提供了前所未有的功能(例如辐射),并通过宽边进行连续光束扫描,并且易于制造,使这些设计非常适合毫米波应用(例如新兴的第五代)物联网,雷达和成像。结果表明,平面的狄拉克光子晶体可以由主SIW波导内部的气柱组成,并呈现出封闭的带隙和围绕宽边的线性色散。控制相位和衰减常数,以获得定向光束并在宽角度范围(-30°至20°)中进行扫描。所提出的DLWA具有高效率的28 GHz左右的宽阻抗带宽,并且在从25到31 GHz的整个频率范围内,峰值增益约为16 dBi,增益变化小于1 dB。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。已经提出了几种设计,并且它们的原型是使用标准基板制造的。测量结果表明与仿真结果非常吻合,验证了所提出的概念。