Nonreciprocal microwave band-gap structures.
Nonreciprocal microwave band-gap structures.
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DOI：
10.1103/physreve.66.016608
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发表时间：
2002-07
期刊：
影响因子：
--
通讯作者：
P. Belov;S. Tretyakov;A. Viitanen
中科院分区：
文献类型：
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作者：
P. Belov;S. Tretyakov;A. Viitanen
提出并研究了一种电控非互易电磁带隙材料。这种新材料是一种周期性的三维规则晶格的小磁化铁氧体球。在本文中，我们考虑平面电磁波在这种介质中，并设计了一个分析模型的材料参数。给出了平面波在平面界面上反射的解析解。在所提出的材料中，一个新的电控阻带出现在亚铁磁共振频率附近的频带中的两个圆偏振本征波之一。该频率可以远低于通常的晶格带隙，这允许实现相当紧凑的结构。概述了该材料的主要性能。
An electrically controlled nonreciprocal electromagnetic band-gap material is proposed and studied. The new material is a periodic three-dimensional regular lattice of small magnetized ferrite spheres. In this paper, we consider plane electromagnetic waves in this medium and design an analytical model for the material parameters. An analytical solution for plane-wave reflection from a planar interface is also presented. In the proposed material, a new electrically controlled stop band appears for one of the two circularly polarized eigenwaves in a frequency band around the ferrimagnetic resonance frequency. This frequency can be well below the usual lattice band gap, which allows the realization of rather compact structures. The main properties of the material are outlined.