Title :
MI017 - Integrated microwave frequency tunable bandpass filter using barium strontium titanate varactors
Author :
Lam, Peter G. ; Feng, Zhiping ; Haridasan, Vrinda ; Steer, Michael B. ; Kingon, Angus I. ; Maria, J-P.
Author_Institution :
North Carolina State University Department of Materials Science and Engineering, USA
Abstract :
A bandpass filter for the frequency range of 6??9 GHz, based on tunable interdigital BST varactor is presented. This paper reports the processing steps required to obtain a functional and integrated bandpass filter, which include: via drilling and filling purpose, dielectric deposition, chromium/gold deposition and copper electroplating. Microwave measurements reveal an insertion loss range between 7??11 dB, a 20 dB rejection band, a bandwidth of less than 500 MHz, and 1.73 GHz of frequency tunability.
Keywords :
Band pass filters; Barium; Binary search trees; Dielectric loss measurement; Drilling; Filling; Microwave frequencies; Strontium; Titanium compounds; Varactors;
Conference_Titel :
Applications of Ferroelectrics, 2008. ISAF 2008. 17th IEEE International Symposium on the
Conference_Location :
Santa Re, NM, USA
Print_ISBN :
978-1-4244-2744-4
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2008.4693757
