DocumentCode :
82387
Title :
A Frequency Reconfigurable Microstrip Antenna Based on 
Substrate
Author :
Yelong Wang ; Yang Liu ; Honglei Du ; Chunheng Liu ; Qian Xue ; Xiaoyang Gao ; Shandong Li ; Yueguang Lu
Author_Institution :
Dept. of Phys., Harbin Inst. of Technol., Harbin, China
Volume :
63
Issue :
2
fYear :
2015
fDate :
Feb. 2015
Firstpage :
770
Lastpage :
775
Abstract :
A novel frequency reconfigurable microstrip antenna based on (Ba, Sr)TiO3 (BST) substrate is presented. Compared to the complicated structures in traditional reconfigurable antennas, our work is featured by a quite concise design. A theoretical model is proposed to calculate the initial antenna parameters. Both the simulation and the experiment indicate that the coupled aperture structure can efficiently overcome impedance mismatch of BST substrate and obtain a frequency tunability of 10% in Ku band by a DC electric field changing from 0 to 10 V/μm. Besides, similar radiation patterns are obtained in the operating band for both the E plane and H plane. Our study shows that the using of BST material on the frequency reconfigurable antenna is promising, and can be easily extended to reconfigurable antenna arrays.
Keywords :
antenna radiation patterns; barium compounds; microstrip antenna arrays; strontium compounds; titanium compounds; (BaSr)TiO2; BST substrate; DC electric field; E plane; H plane; antenna parameters; both the E plane and H plane. Our study shows that the using of BST; frequency reconfigurable antenna; frequency reconfigurable microstrip antenna; impedance mismatch; radiation patterns; reconfigurable antenna arrays; theoretical model; voltage 0 V to 10 V; Apertures; Feeds; Films; Permittivity; Substrates; BST substrate; DC electric field; frequency reconfigurable antenna; ku band;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2014.2378275
Filename :
6979199
Link To Document :
