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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wang, L.M. Mao-Yuan Horng Chen-Chung Liu Jyh-Haur Tsao Sung, H.H. Yang, H.C. Horng, H.E. |
| Copyright Year | 2002 |
| Abstract | Narrow-band microstrip hairpin-type filters are designed for wireless-communication applications. We have fabricated the high-T/sub c/ superconducting filters by patterning YBa/sub 2/Cu/sub 3/O/sub y/ (YBCO) films deposited on 10-mm-square and 20-mm-square, 0.6-mm-thick LaAlO/sub 3/ substrates. The form of hairpin-resonator band-pass filter can be thought of as an alternative version of parallel-couple-resonator filter, except that the open-circuited ends of the resonator are folded back. Our 3-pole 10-mm-square filter has a 2.5-dB maximum insertion loss and 16 MHz bandwidth at 1.94 GHz, while 3-pole 20-mm-square filter has a 0.45-dB maximum insertion loss and 30 MHz bandwidth at 1.94 GHz both with the air-gap height of 3 mm. By mechanically changing the height of air gap between the filter pattern and the top housing plane, the center of frequency of the filter was varied from 1.92 to 2.0 GHz, corresponding to a frequency shift of about 5%. The influences of wafer sizes and housing height on filter performance are discussed. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 272 |
| Ending Page | 275 |
| Page Count | 4 |
| File Size | 816325 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 13 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Narrowband Frequency Yttrium barium copper oxide Band pass filters Superconducting filters Resonator filters Superconducting films Insertion loss Bandwidth Microstrip filters |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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