A 20 to 560 MHz, Reduced Harmonic Selectivity and Harmonic Fold Back, 6-path Tunable Bandpass Filter
Jixuan Wang, Yun Pan
Available Online June 2015.
- https://doi.org/10.2991/icecee-15.2015.159How to use a DOI?
- Switched capacitor; Bandpass filter; Software-defined radio (SDR); N-path filter; CMOS
- In this paper a 6-path tunable bandpass filter which is able to reduce both Harmonic Selectivity (HS) and Harmonic Fold Back (HFB) effect simultaneously is proposed. The filter contains two channels of 6-path switched capacitor filters with same circuit structure but different clocks and is designed and simulated in GSMC 180nm CMOS technology. The simulation result shows the center frequency of the designed filter can be tuned from 20 to 560 MHz, reduction of HS at is from -34 to -40 dB, and reduction of H6 in HFB is -21 dB at the same time. The filter can be useful in SDR systems because of its good tunability, high Q and high linearity.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Jixuan Wang AU - Yun Pan PY - 2015/06 DA - 2015/06 TI - A 20 to 560 MHz, Reduced Harmonic Selectivity and Harmonic Fold Back, 6-path Tunable Bandpass Filter BT - 2015 2nd International Conference on Electrical, Computer Engineering and Electronics PB - Atlantis Press SP - 822 EP - 828 SN - 2352-538X UR - https://doi.org/10.2991/icecee-15.2015.159 DO - https://doi.org/10.2991/icecee-15.2015.159 ID - Wang2015/06 ER -