DocumentCode :
3214889
Title :
A rectangular defected ground structure (DGS) for reduction of mutual coupling between closely-spaced microstrip antennas
Author :
Habashi, Asieh ; Nourinia, Javad ; Ghobadi, Changiz
Author_Institution :
Electron. & Electr. Eng. Dept., Urmia Univ., Urmia, Iran
fYear :
2012
fDate :
15-17 May 2012
Firstpage :
1347
Lastpage :
1350
Abstract :
A sufficient and simple method to minimize the mutual coupling between closely-spaced microstrip antennas in a H-plane array format, operating at the same frequency is presented. More isolation can be provided through multiple rectangular defected ground structures (DGSs) between the antennas. Inter element mutual coupling before and after using the proposed DGSs is investigated. The length, width and number of the rectangular DGSs have been optimized for more mitigating the mutual coupling (S12). Position of the DGSs is also the other important factor to have a best performance. By using this technique, more than 31 dB isolation between two patch antennas with a side by side distance of only 1/4 free-space wavelength at resonance frequency of 9.2 GHz can be obtained.
Keywords :
defected ground structures; microstrip antenna arrays; DGS; H-plane array format; closely-spaced microstrip antennas; free-space wavelength; frequency 9.2 GHz; interelement mutual coupling; mutual coupling reduction; patch antennas; rectangular defected ground structure; resonance frequency; Apertures; Complexity theory; Mutual coupling reduction; defected ground structures; patch antenna array;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Engineering (ICEE), 2012 20th Iranian Conference on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-1149-6
Type :
conf
DOI :
10.1109/IranianCEE.2012.6292566
Filename :
6292566
Link To Document :
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