1 September 1995 Miniaturized microstrip multipole low-pass filters using high-temperature superconducting YBa2Cu3O7-x thin films
Author Affiliations +
Abstract
We have designed the microstrip-type multipole (7-pole and 9-pole) lowpass filters consisting of both transmission lines and open stubs. The filters were fabricated on high temperature superconducting (HTS) YBa2Cu3O7-(delta ) (YBCO) thin films grown on MgO(100) substrates by pulsed laser deposition. For 7-pole lowpass filter, the measured insertion losses were within 0.5 dB, and up to 8 GHz the passband shows very flat with ripples of less than 0.05 dB. For 9-pole filter, we observed the insertion loss of 5.0 dB and the ripples of 0.64 dB. The skirt became steep and the off-band rejection increased large as the number of poles increases.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jeha Kim, Kwang-Yong Kang, Seok Kil Han, Sang Yeol Lee, Dal Ahn, "Miniaturized microstrip multipole low-pass filters using high-temperature superconducting YBa2Cu3O7-x thin films", Proc. SPIE 2559, High-Temperature Microwave Superconductors and Applications, (1 September 1995); doi: 10.1117/12.218172; https://doi.org/10.1117/12.218172
PROCEEDINGS
5 PAGES


SHARE
KEYWORDS
Electronic filtering

Microwave radiation

Optical filters

Superconductors

Thin films

Bandpass filters

Linear filtering

Back to Top