A Frequency Reconfigurable Antenna for Microwave Applications

2018 International Japan-Africa Conference on Electronics, Communications and Computations (JAC-ECC) Pub Date : 2018-12-01 DOI:10.1109/JEC-ECC.2018.8679557

S. M. Gaber, N. A. Al-Shalaby

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引用次数: 2

Abstract

In this paper, two models for dielectric resonator antenna (DRA) with frequency reconfigurable capabilities are investigated. The frequency agility is achieved via integrating ideal switches with the DRA structure employed for microwave applications. The first model investigates the integration of five switches on the DRA surface to connect the printed metallic ring and the ground plane. The resonance frequency and the impedance matching bandwidth are controled by the combination of the switches states to be ON and OFF. The resonance frequency is varied from 9.7 GHz to 11.5 GHz with 190 MHz bandwidth. In the second model a conducting plate is printed on the top of the DRA and eight metallic switches connect it with the ground through eight metallic strips. The reconfigurable frequency of the antenna is changed from 6.2 GHz to 8.08 GHz. A full-wave analysis is used to model and analyze the radiation characterstics of the antenna structure. A time domain based finite integral technique (FIT) and frequency domain finite element method (FEM) are employed.

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用于微波应用的频率可重构天线

本文研究了两种具有频率可重构能力的介质谐振器天线模型。通过将理想开关与用于微波应用的DRA结构相结合，实现了频率敏捷性。第一个模型研究了DRA表面上连接打印金属环和接地平面的五个开关的集成。谐振频率和阻抗匹配带宽由开关状态的ON和OFF组合控制。谐振频率为9.7 GHz ~ 11.5 GHz，带宽为190mhz。在第二种模型中，在DRA的顶部印上导电板，8个金属开关通过8条金属条将其与地面连接起来。天线的可重构频率由6.2 GHz变为8.08 GHz。采用全波分析方法对天线结构的辐射特性进行建模和分析。采用了时域有限积分法和频域有限元法。

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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来源期刊

2018 International Japan-Africa Conference on Electronics, Communications and Computations (JAC-ECC)

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