Novel Computer Controllable Metamaterial beyond Conventional Configurations and Its Microwave Absorber Application
Novel Computer Controllable Metamaterial beyond Conventional Configurations and Its Microwave Absorber Application
复制标题
超越常规结构的新型计算机可控超材料及其微波吸收体应用
DOI：
10.1109/mwsym.2007.379998
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
C. Kawamura
中科院分区：
文献类型：
--
作者：
Y. Kotsuka;C. Kawamura
为了实现类似于“活细胞自主控制系统”的终极材料对电磁波的响应，目前已经提出了一种计算机可控超材料(CCMM)。作为CCMM的一种应用，本文提出了一种新型的CCMM结构，用于微波吸收材料的匹配特性的改善。采用由有源电路和无源电路组成的二维CCMM，在4.3 GHz的中心频率处获得了比常规CCMM吸收体大6.5倍的宽带特性。在电感电路上安装3D CCMM后，TM波在45度角下的反射系数匹配特性小于-20分贝。这些CCMM仅由两个偏置馈线控制。
To realize an ultimate material similar to "autonomous control system of living cell" capable of responding to electromagnetic waves, a computer controllable metamaterial (CCMM) has been thus far proposed. In this paper, novel CCMM configurations are proposed for microwave absorbers focusing on matching characteristic improvement as one application of CCMM. Using 2D CCMM composed of active and passive circuits, broadband characteristics with an absorption band 6.5 times greater than conventional CCMM absorber at the central frequency of 4.3 GHz is obtained. With 3D CCMM mounted on inductive circuits, matching characteristics below -20 dB in reflection coefficient are attained at an angle of 45deg for TM waves. These CCMM are controlled by only two bias feeder wirings.