Frequency shifting of microstrip ring filter using open stubs
Dual-mode microstrip ring filter whose center frequency is shifted to a lower frequency using four additional open stubs is presented. Nevertheless, the shifted dual-mode ring filter has to face an in-band matching problem in its passband response. A possible solution to the problem is proposed by m...
| Published in: | Proceeding, 2010 IEEE Student Conference on Research and Development - Engineering: Innovation and Beyond, SCOReD 2010 |
|---|---|
| Main Author: | |
| Format: | Conference paper |
| Language: | English |
| Published: |
2010
|
| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79951976830&doi=10.1109%2fSCORED.2010.5703964&partnerID=40&md5=436064280ad8df3741e1a78d5bf4f68a |
| Summary: | Dual-mode microstrip ring filter whose center frequency is shifted to a lower frequency using four additional open stubs is presented. Nevertheless, the shifted dual-mode ring filter has to face an in-band matching problem in its passband response. A possible solution to the problem is proposed by modifying the line impedance of the ring filter. In this paper, a frequency shifting of about 33.33 % of its 3 GHz initial value is implemented for a microstrip ring filter on FR4 substrate. All the filter layouts are presented along with the comparison between the simulation and measured results. ©2010 IEEE. |
|---|---|
| ISSN: | |
| DOI: | 10.1109/SCORED.2010.5703964 |