Title :
Ferroelectric thick-film varactors based on Barium-Strontium-Titanate for high power applications
Author :
Maune, H. ; Sazegar, M. ; Zheng, Y. ; Jakoby, R.
Author_Institution :
Microwave Eng., Tech. Univ. Darmstadt, Darmstadt, Germany
Abstract :
Tunable coplanar interdigital capacitors (IDC) based on Barium-Strontium-Titanate (BST) thick-films are evaluated for their suitability for high power applications, such as tunable impedance matching networks of power amplifiers. The design process has been reviewed with respect to the nonlinearity of the varactors. Various devices have been fabricated and their performance has been verified by measurements. The realized devices show a high IP3 around 60 dBm.
Keywords :
barium compounds; ferroelectric capacitors; impedance matching; microwave power amplifiers; strontium compounds; thick film capacitors; varactors; BaSrTiO3; ferroelectric thick-film varactors; microwave power amplifiers; tunable coplanar interdigital capacitors; tunable impedance matching; Binary search trees; Ferroelectric materials; Impedance matching; Microwave amplifiers; Nonlinear distortion; Permittivity; Power amplifiers; Process design; Varactors; Voltage; Ferroelectric; Microwave power amplifiers; Nonlinear distortion; Varactors;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2010 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-4725-1
Electronic_ISBN :
978-1-4244-4726-8
DOI :
10.1109/RWS.2010.5434186
