Title :
A novel periodic defected ground structure for microstrip line with improved performances
Author :
Peng, Lin ; Ruan, Cheng-Li ; Ding, Chao-yuan
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel one-dimensional (1-D) defected ground structure (DGS) for the microstrip line is proposed. Different from the square-shaped DGS (SSDGS), the improved DGS (IDGS), which hold four stubs to disturb the fields in the square defected pattern, improved the effective capacitance and inductance at high frequencies, and provide a very wide bandgap characteristic with only one or more unit lattices. The performance of the unit DGS is investigated. A uniform periodic SSDGS and IDGS are designed and study. The research work show that the IDGS exhibit more excellent performances by generating stopband at high frequency bands.
Keywords :
defected ground structures; microstrip lines; 1D defected ground structure; microstrip line; periodic defected ground structure; square defected pattern; square-shaped DGS; Capacitance; Equivalent circuits; Etching; Frequency; Inductance; Lattices; Metamaterials; Microstrip; Periodic structures; Photonic band gap; bandgap; defected ground structure; effective capacitanc and inductance; microstrip line;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4076-4
DOI :
10.1109/MAPE.2009.5355754
