DocumentCode :
78295
Title :
Design of an Instantaneous-Wideband Frequency Reconfigurable Microstrip Antenna Based on 
/MgO Composite Thin Films
Author :
Yelong Wang ; Chunheng Liu ; Bin Sun ; Yang Liu ; Xiaodong Sun ; Fei Li ; Yueguang Lu
Author_Institution :
Dept. of Phys., Harbin Inst. of Technol., Harbin, China
Volume :
62
Issue :
12
fYear :
2014
fDate :
Dec. 2014
Firstpage :
6472
Lastpage :
6475
Abstract :
A novel frequency reconfigurable microstrip antenna with a wide instantaneous operation band based on BST/MgO composite films is proposed and experimentally demonstrated. In our design, the frequency reconfigurability is achieved by altering the permittivity of BST film, and an extra Fabry-Perot resonant structure is adopted to broaden the instantaneous operation band. As a consequence, a wide instantaneous band that is nearly 26% greater is obtained in measurement, which means that the working band of our antenna can be tuned from 9.9-13.5 GHz to 10.9-14.2 GHz. This instantaneous wideband feature makes our frequency reconfigurable microstrip antenna more attractive and practical in wireless communication systems.
Keywords :
Fabry-Perot resonators; barium; broadband antennas; magnesium alloys; microstrip antennas; microwave antennas; permittivity; strontium; thin films; titanium alloys; BST film; Ba; Fabry-Perot resonant structure; MgO; Sr; TiO3; composite thin films; frequency 10.9 GHz to 14.2 GHz; frequency 9.9 GHz to 13.5 GHz; frequency reconfigurability; frequency reconfigurable microstrip antenna; instantaneous-wideband antenna; permittivity; wide instantaneous band; Antenna measurements; Bandwidth; Films; Microstrip antennas; Resonant frequency; $({rm Ba}, {rm Sr}) {rm TiO} _{3}$ film; FP resonant structure; frequency reconfigurable antenna; instantaneous wideband;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2014.2359475
Filename :
6905805
Link To Document :
