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Title: High-temperature superconducting bandpass spiral filter
Authors: Ong, C.K. 
Chen, L. 
Lu, J.
Tan, C.Y. 
Tan, B.T.G. 
Keywords: Dual-spiral resonator
High-temperature superconductivity
Microstrip bandpass filter
Spiral filter
Issue Date: Oct-1999
Citation: Ong, C.K., Chen, L., Lu, J., Tan, C.Y., Tan, B.T.G. (1999-10). High-temperature superconducting bandpass spiral filter. IEEE Microwave and Guided Wave Letters 9 (10) : 407-409. ScholarBank@NUS Repository.
Abstract: We report a new type of microstrip bandpass spiral filter structure, which exhibits much smaller size than other existing miniaturized bandpass filter structures, and is particularly useful in developing high-temperature superconducting (HTS) compact filters for cellular communication systems. A prototype three-stage HTS bandpass spiral filter with center frequency of 633 MHz was designed and fabricated on a 20 mm × 8 mm × 0.5 mm LaAlO3 substrate. The measurement results of the spiral filter have good agreements with its electromagnetic full-wave simulation results.
Source Title: IEEE Microwave and Guided Wave Letters
ISSN: 10518207
DOI: 10.1109/75.798031
Appears in Collections:Staff Publications

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