Two-dimensional microwave band-gap structures of different dielectric materials

Pramana

E D V Nagesh²  G Santosh Babu²  V Subramanian1²  V Sivasubramanian¹  V R K Murthy² 

[1] Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India$$;Department of Physics, Indian Institute of Technology Madras, Chennai 600 036, India$$

关键词: Band gaps;    gap-to-midgap ratio;    dielectric constant.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We report the use of low dielectric constant materials to form two-dimensional microwave band-gap structures for achieving high gap-to-midgap ratio. The variable parameters chosen are the lattice spacing and the geometric structure. The selected geometries are square and triangular and the materials chosen are PTFE (𝜀 = 2.1), PVC (𝜀 = 2.38) and glass (𝜀 = 5.5). Using the plane-wave expansion method, proper lattice spacing is selected for each structure and material. The observed experimental results are analyzed with the help of the theoretical prediction.

【 授权许可】

Unknown