Frequency selective characteristics of a new dielectric periodic structure composed of left-handed materials

2006 ◽  
Vol 49 (2) ◽  
pp. 421-424 ◽  
Author(s):  
Weihai Fang ◽  
Shanjia Xu
Keyword(s):  
Periodic Structure ◽  
Left Handed ◽  
Dielectric Periodic Structure ◽  
Frequency Selective

scholarly journals A transmit/reflect switchable frequency selective surface based on all dielectric metamaterials

2015 ◽  
Vol 05 (04) ◽  
pp. 1550035 ◽  
Author(s):  
Fei Yu ◽  
Jun Wang ◽  
Jiafu Wang ◽  
Hua Ma ◽  
Hongliang Du ◽  
...  
Keyword(s):  
Effective Medium Theory ◽  
Frequency Selective Surface ◽  
Wave Band ◽  
Medium Theory ◽  
Left Handed ◽  
Resonance Frequencies ◽  
Induced Field ◽  
Millimeter Wave Band ◽  
Frequency Selective ◽  
Magnetic Resonances

In this paper, we propose a novel transmit/reflect switchable frequency selective surface (FSS) in millimeter wave band based on the effective medium theory under quasi-static limit, which is designed with square-hole elements cut from continuum dielectric plates. The building elements of the surface are composed of all dielectric metamaterial rather than metal material. With proper structural design and parameters tuning, the resonance frequencies can be tuned appropriately. The frequency response of the surface can be switched from that of a reflecting structure to a transmitting one by rotating the surface [Formula: see text], which means under different incident polarizations. The reflective response can be realized due to the effect of electric and magnetic resonances. Theoretical analysis shows that the reflective response arises from impedance mismatching by electric and magnetic resonances. And the transmitting response is the left-handed passband, arises from the coupling of the electric and magnetic resonances. In addition, effective electromagnetic parameters and the dynamic induced field distributions are analyzed to explain the mechanism of the responses. The method can also be used to design switchable all-dielectric FSS with continuum structures in other frequencies.

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