Abstract
A bandstop filter architecture with small form factor and very large attenuation over an octave frequency tuning range is demonstrated. The architecture provides a benefit of resonator-Q-independent zero reflection coefficient at the center frequency, and is demonstrated with a tuning range of 55.04 to 133.34 MHz varactor-tuned two-resonator notch filter with minimum notch attenuation of 64 dB, 3-dB fractional bandwidth (FBW) of 10.86% to 3.22% over the tunable frequency range and passband up to 356.5 MHz, resulting in a 6.48-to-1 upper passband, in a footprint of 2.27×1.65 cm2. The unloaded quality factor (Q-factor) was extracted to be 62 at 133.34 MHz.
| Original language | English |
|---|---|
| Title of host publication | IEEE MTT-S International Microwave Symposium Digest |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Print) | 9781479938698 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
| Event | 2014 IEEE MTT-S International Microwave Symposium, IMS 2014 - Tampa, FL, United States Duration: 2014 Jun 1 → 2014 Jun 6 |
Other
| Other | 2014 IEEE MTT-S International Microwave Symposium, IMS 2014 |
|---|---|
| Country | United States |
| City | Tampa, FL |
| Period | 14/6/1 → 14/6/6 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Radiation
- Condensed Matter Physics
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Lee, T. C., Lee, J. S., Naglich, E. J., & Peroulis, D. (2014). Octave tunable lumped-element notch filter with resonator-Q-independent zero reflection coefficient. In IEEE MTT-S International Microwave Symposium Digest [6848573] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSYM.2014.6848573