Series-cascaded ring resonators for compact microwave filter with high rejection
Very selective fifth order bandpass ring filter is presented based on two series-connected quarter-wavelength side-coupled ring resonators. As the connection between the two quarter-wavelength lines forms a half-wavelength resonator, an extra pole is produced, leading to a total of five poles since...
| Published in: | ISIEA 2010 - 2010 IEEE Symposium on Industrial Electronics and Applications |
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| Main Author: | |
| Format: | Conference paper |
| Language: | English |
| Published: |
2010
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| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79251570564&doi=10.1109%2fISIEA.2010.5679409&partnerID=40&md5=9c9a3af0bf4baa90d2f844c2c7f600a8 |
| Summary: | Very selective fifth order bandpass ring filter is presented based on two series-connected quarter-wavelength side-coupled ring resonators. As the connection between the two quarter-wavelength lines forms a half-wavelength resonator, an extra pole is produced, leading to a total of five poles since each ring resonator presents two poles. This adds to the compactness of the overall filter and improves the selectivity and rejection. Centered at 2 GHz, the filter layout is simulated and implemented on FR4 substrate using microstrips. Filter simulation and measurement results are presented to validate the idea. ©2010 IEEE. |
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| ISSN: | |
| DOI: | 10.1109/ISIEA.2010.5679409 |