By Topic

Two-pole tunable bandpass filter based on YBCO plated single crystal KTO disk resonators

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Eriksson., Anders ; Dept. of Microtechnology & Nanoscience, Chalmers Univ. of Technol., Goteborg, Sweden ; Deleniv, A.N. ; Gevorgian, S.

This paper addresses design and experimental characterization of a two-pole 1.5% bandpass tunable filter operating at 0.9 GHz and 77 K. The filter is based on two YBCO plated KTaO3 disc resonators (0.5-mm-thick, 10 mm in diameter) and utilizes the TM020 mode. The tunability is achieved through the nonlinear DC electric field dependence of the relative dielectric constant of KTaO3. About 5% tuning range is achieved at 500 V driving voltage. Although the insertion losses are relatively high (about -5 dB at 500 V) the shape of the passband is essentially stable. A rather good agreement between simulated and experimental performances is found.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:14 ,  Issue: 1 )