HTS AMPS-A and AMPS-B filters for cellular receive base stations
The multiple, interleaved pass band nature of the AMPS cellular system provides an excellent opportunity for high performance HTS filter technology for base station reverse link applications. The 25 MHz spectrum is divided into 4 unequal bands, 2 each for the A and B operators. For AMPS-A, the two b...
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Published in | IEEE transactions on applied superconductivity Vol. 9; no. 2; pp. 4018 - 4021 |
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Main Authors | , , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
New York, NY
IEEE
01.06.1999
Institute of Electrical and Electronics Engineers |
Subjects | |
Online Access | Get full text |
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Summary: | The multiple, interleaved pass band nature of the AMPS cellular system provides an excellent opportunity for high performance HTS filter technology for base station reverse link applications. The 25 MHz spectrum is divided into 4 unequal bands, 2 each for the A and B operators. For AMPS-A, the two band pass filters are connected in parallel, while for AMPS-B a band pass filter is cascaded with a band reject filter. All band pass filters have finite transmission zeros and the band reject filter is designed to have an equal ripple stop band. The design and performance of high selectivity filters for this application is described. |
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Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 |
ISSN: | 1051-8223 1558-2515 |
DOI: | 10.1109/77.783909 |