| Autor: |
Humphreys, R.G., Barrett, C.P., Chew, N.G., Hedges, S.J., Greed, R.B., Hunt, B.D., Nicholson, B.F., Hensen, S., Muller, G. |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Applied Superconductivity; 1997, Vol. 7 Issue 2, p3075-3078, 4p |
| Abstrakt: |
Contiguous 7-pole filters centred at 7.97 and 8.00 GHz have been made by co-evaporation of YBa/sub 2/Cu/sub 3/O/sub x/ thin films on MgO substrates. The 0.3% bandwidth filters make stringent demands on the design and fabrication processes. Good control of the centre frequency and bandwidth, sharp cut-offs and high linearity have been achieved. A pair of filters has been assembled as a layer of a combiner circuit, and its characteristics studied. Although the individual filters have been successfully made to high accuracy, the extreme precision required by a combiner circuit would require some tuning for high performance, at least at the present state of the technology. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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