Title :
High-gain frequency reconfigurable Vivaldi antenna
Author :
Borda Fortuny, C. ; Tong, Kin Fai ; Chetty, K. ; Benton, David M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London (UCL), London, UK
Abstract :
This article proposes a frequency agile antenna whose operating frequency band can be switched. The design is based on a Vivaldi antenna. High-performance radio-frequency microelectromechanical system (RF-MEMS) switches are used to realize the 2.7 GHz and 3.9 GHz band switching. The low band starts from 2.33 GHz and works until 3.02 GHz and the high band ranges from 3.29 GHz up to 4.58 GHz. The average gains of the antenna at the low and high bands are 10.9 and 12.5 dBi, respectively. This high-gain frequency reconfigurable antenna could replace several narrowband antennas for reducing costs and space to support multiple communication systems, while maintaining good performance.
Keywords :
UHF antennas; microswitches; microwave antennas; microwave switches; RF-MEMS switches; cost reduction; frequency 2.33 GHz to 4.58 GHz; frequency agile antenna; high-gain frequency reconfigurable Vivaldi antenna; high-performance radio-frequency microelectromechanical system; multiple communication systems; narrowband antennas; Antenna radiation patterns; Microstrip; Microwave antennas; Switches; Vivaldi antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904953
