Referenced Items are not available for this document.
The design, fabrication, and measurement of 7-pole microstrip lowpass filters and 4-pole parallel coupled-line bandpass filters using superconducting YBa/sub 2/Cu/sub 3/O/sub 7-x/ epitaxial thin films are presented. The YBa/sub 2/Cu/sub 3/O/sub 7-x/ films were grown in situ at 770/spl deg/C and 200 mTorr oxygen partial pressure in a pulsed laser deposition system. The 7-pole microstrip-line lowpass filter and 4-pole parallel coupled-line bandpass filter patterned on the laser ablated YBCO films with dimension of 20 cm/spl times/10 cm/spl times/0.5 mmt were generated using photolithographic and wet etching processes. The complete devices packaged in a 3-component type brass test-fixture were characterized. The results showed the center frequency of 11.2 GHz with 6% bandwith and less than 1 dB insertion loss(IL) for the case of bandpass filters below 77 K.<
Published in:
Applied Superconductivity, IEEE Transactions on
(Volume:5
,
Issue:
2
)
Date of Publication: June 1995
- Page(s):
- 2671 - 2674
- ISSN :
- 1051-8223
- INSPEC Accession Number:
- 5030941
- Digital Object Identifier :
- 10.1109/77.403140
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 26 February 2004
- Issue Date :
- June 1995
- Sponsored by :
- The IEEE Council on Superconductivity
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