Title :
A novel compact electromagnetic band-gap (EBG) structure and its application in microstrip antenna arrays
Author :
Yang, Li ; Feng, Zhenghe ; Chen, Fanglu ; Fan, Mingyan
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
This paper presents an electromagnetic band-gap (EBG) structure in a fork-like shape. The period of the EBG lattice is only 0.07λ0 at the desired stopband frequency, resulting in the most compact EBG lattice over achieved. A comparison has been carried out between the new structure and the mushroom-like EBG structure. Simulations and experimental results have verified that the area of the fork-like structure is less than 40% of the latter. Also a double element microstrip antenna array inserted with the new EBG structure has been simulated, showing that a 6.51 dB mutual coupling reduction is achieved.
Keywords :
electromagnetic wave propagation; microstrip antenna arrays; microwave materials; periodic structures; photonic band gap; EBG lattice; compact electromagnetic band-gap; fork-like shape; microstrip antenna arrays; mushroom-like EBG structure; mutual coupling reduction; periodic structures; stopband frequency; surface wave; Antennas and propagation; Dielectric substrates; Lattices; Metamaterials; Microstrip antenna arrays; Microstrip antennas; Microwave antenna arrays; Periodic structures; Photonic band gap; Strips;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1338897
