Title :
Very high tunable inter-digital capacitor using bismuth zinc niobate thin-film dielectrics for microwave applications
Author :
Lee, Y.C. ; Hong, Y.-P. ; Kim, D.M. ; Ko, K.H.
Author_Institution :
Div. of Marine Electron. & Commun. Eng., Mokpo Nat. Maritime Univ., Mokpo Jeonnam, South Korea
fDate :
7/20/2006 12:00:00 AM
Abstract :
A very high tunable inter-digital capacitor (IDC) using the bismuth zinc niobate (BZN) pyrochlore thin-film dielectrics is presented for microwave applications. To increase the tunability of the IDC and reduce DC bias voltage, its electrodes are fully embedded into the tunable BZN dielectrics. At 20 V DC applied, the IDC yields 72 and 75% tunability at 2.4 and 5.8 GHz, respectively.
Keywords :
UHF devices; bismuth compounds; dielectric thin films; microwave devices; thin film capacitors; tuning; zinc compounds; 2.4 GHz; 20 V; 5.8 GHz; BZN; bismuth zinc niobate thin-film dielectrics; microwave applications; very high tunable inter-digital capacitor;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20060994
