Beamwidth Control of an Impulse Radiating Antenna Using a Liquid Metal Reflector

被引：20

作者：

Ha, Arim ^{[1
]}

Chae, Myung Ho ^{[2
]}

Kim, Kangwook ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Gwangju 500712, South Korea

[2] Agcy Def Dev, Daejeon 34186, South Korea

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2019年 / 18卷 / 04期

关键词：

Beamwidth control; impulse radiating antennas (IRAs); liquidmetal; reflector antennas; ultrawideband (UWB) antennas;

D O I：

10.1109/LAWP.2019.2894397

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, a beamwidth controllable impulse-radiating antenna (IRA) was proposed. The typical solid reflector of the IRA was replaced with a wired reflector corresponding to the current flow on the reflector surface. The performance of the wired-reflector IRA (WIRA) was shown to be essentially the same as that of the conventional IRA through simulation and measurement. Then, liquid metal was used to replace the solid wires, and a beamwidth controllable WIRA was implemented. The electrical size of the reflector could be expanded up to approximately 400 mm in the H-plane. The beamwidth control capability was validated through simulation and measurement. It was shown that the beamwidth could be varied in the H-plane up to 44% while other parameters, such as the input impedance and E-plane beamwidth, remained almost constant.

引用

页码：571 / 575

页数：5

共 22 条

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