极化可重构槽馈圆柱介质谐振器天线

IF 6.7 1区计算机科学 Q1 Physics and Astronomy

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI:10.2528/pier20041203

M. Esmaeili, J. Laurin

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引用次数: 6

摘要

介绍了一种具有圆极化、线性水平极化和线性垂直极化切换能力的圆柱形介质谐振器天线的新设计。DRA工作在3.25 GHz的中心频率，由微带线通过两个狗骨槽馈电。在本设计中，仅使用两个PIN二极管作为开关元件，与现有设计相比，大大降低了直流偏置电路的复杂性。PIN二极管嵌入到连接馈电微带线的变压器中。这种技术可以方便地补偿PIN二极管结电容对天线匹配带宽的寄生效应。圆极化、线性水平极化和线性垂直极化的带宽分别为22%、17%和18%。圆偏振的3db轴比带宽为12%。样机天线的测量结果与设计天线系统的仿真结果吻合较好，验证了设计过程的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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POLARIZATION RECONFIGURABLE SLOT-FED CYLINDRICAL DIELECTRIC RESONATOR ANTENNA

A new design for a cylindrical dielectric resonator antenna (DRA) with a capability of switching between circular, linear horizontal and linear vertical polarizations is introduced. The DRA, operating at the center frequency of 3.25 GHz, is fed by a microstrip line through two dog-bone slots. In this design, only two PIN diodes are employed as switching elements which significantly decreases the complexity of DC biasing circuits compared to existing designs. The PIN diodes are embedded in transformers connected to the feeding microstrip lines. This technique conveniently allows to make compensations for parasitic effects of the PIN diodes junction capacitors on the antenna matching bandwidth. The circular, linear horizontal and linear vertical polarizations have a bandwidth of 22%, 17% and 18%, respectively. The 3-dB axial ratio bandwidth for the circular polarization is 12%. The measured results obtained from prototyped antenna agree well with simulated results of the designed antenna system, which confirms the validity of the design process.

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来源期刊

Progress in Electromagnetics Research-Pier 物理-电信学

CiteScore

7.20

自引率

3.00%

发文量

审稿时长

1.3 months

期刊介绍： Progress In Electromagnetics Research (PIER) publishes peer-reviewed original and comprehensive articles on all aspects of electromagnetic theory and applications. This is an open access, on-line journal PIER (E-ISSN 1559-8985). It has been first published as a monograph series on Electromagnetic Waves (ISSN 1070-4698) in 1989. It is freely available to all readers via the Internet.