基于平面有损磁(PLM)表面的定向单极天线

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-07-31 DOI:10.26866/jees.2023.4.r.177

Jae‐Gon Lee

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引用次数: 0

摘要

本文提出了一种使用平面有损磁（PLM）表面的定向单极天线。当单极天线在由完美电导体（PEC）和完美磁导体（PMC）组成的接地平面上垂直设计时，接地平面的表面电流不能在PMC上流动，而只能在PEC上沿一个方向流动。因此，这种单极天线的电磁（EM）波可以在垂直于地面的方向上辐射。或者，采用PLM表面，例如具有高相对磁导率的铁氧体片，以实现类似于PMC的EM特性。为了验证所提出的天线的可行性，使用在2GHz下具有20的相对磁导率和10的磁损耗正切的铁氧体片来实现半PMC接地平面，并弯曲单极天线以实现小型化。在谐振频率下，测得的峰值增益和-10dB带宽分别约为1.3dBi和23%。

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Directional Monopole Antenna Using a Planar Lossy Magnetic (PLM) Surface

A directional monopole antenna using a planar lossy magnetic (PLM) surface is proposed in this paper. When a monopole antenna is designed vertically on the ground plane composed of a perfect electric conductor (PEC) and a perfect magnetic conductor (PMC), the surface current on the ground plane cannot flow on the PMC and only flows in one direction on the PEC. Therefore, the electromagnetic (EM) wave of such a monopole antenna can radiate in the direction perpendicular to the ground. Alternatively, a PLM surface such as a ferrite sheet with a high relative permeability was employed to achieve EM properties similar to the PMC. To verify the feasibility of the proposed antenna, a ferrite sheet with a relative permeability of 20 and a magnetic loss tangent of 10 at 2 GHz was utilized to implement the half PMC ground plane, and the monopole antenna was bent for miniaturization. The measured peak gain and the -10 dB bandwidth was about 1.3 dBi and 23% at the resonant frequency, respectively.

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来源期刊

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.