Title :
A reconfigurable switched antenna for multi-band applications
Author :
Salehi, Marzieh ; Manteghi, Majid
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
In this paper, transient characteristic of a narrowband small antenna is used to develop a multi-band radiating structure. By tuning the antenna with switched capacitors at a proper speed, a multi-band antenna is realized. Furthermore, by using a time-variant tuning configuration, despite the Chu´s fundamental limit that applies to linear time-invariant (LTI) radiators, antenna bandwidth can be significantly increased.
Keywords :
circuit tuning; multifrequency antennas; switched capacitor networks; Chu´s fundamental limit; antenna bandwidth; linear time-invariant radiators; multiband antenna; multiband applications; multiband radiating structure; narrowband small antenna; reconfigurable switched antenna; switched capacitors; time-variant tuning configuration; transient characteristic; Antennas; Bandwidth; Capacitors; Frequency modulation; Resonant frequency; Switches;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711530
