Title :
Miniaturized and reconfigurable notch antennas using a BST thin film varactor
Author :
Nguyen, V.H. ; Borderon, C. ; Benzerga, R. ; Delaveaud, Ch ; Sharaiha, A. ; Gundel, H.W.
Author_Institution :
IETR, Rennes, France
Abstract :
Ferroelectric (FE) thin film varactor technology can be used for antenna miniaturization and reconfiguration. We present more particularly a quarter wavelength notch antenna with a Barium Strontium Titanate (Ba(1-x)SrxTiO3, BST) thin film in MIM geometry. Integration of the BST varactor yields a size reduction of approximately 56% with respect to the initial antenna size (0.064 × λ0 without BST layer) and the miniaturized antenna is tunable from 0.94 GHz to 1.07 GHz.
Keywords :
UHF antennas; barium compounds; strontium compounds; thin films; titanium alloys; varactors; BST thin film varactor; MIM geometry; antenna miniaturization; antenna reconfiguration; barium strontium titanate thin film; ferroelectric thin film varactor technology; frequency 0.94 GHz to 1.07 GHz; initial antenna size; miniaturized notch antennas; quarter wavelength notch antenna; reconfigurable notch antennas; Dielectric losses; Electrodes; Permittivity; Slot antennas; Varactors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348536