A high dynamic range 4th-order 4–8 GHz Q-enhanced LC band-pass filter with 2–25% tunable fractional bandwidth
- Resource Type
- Conference
- Authors
- Amin, Farooq; Raman, Sanjay; Koh, Kwang-Jin
- Source
- 2016 IEEE MTT-S International Microwave Symposium (IMS) Microwave Symposium (IMS), 2016 IEEE MTT-S International. :1-4 May, 2016
- Subject
- Fields, Waves and Electromagnetics
Band-pass filters
Microwave filters
Resonant frequency
Bandwidth
Resonator filters
Varactors
Tuning
Bandpass filter
wideband
LC filter
varactor
Q-enhancement
bandwidth tuning
frequency tuning
- Language
This paper presents a fourth-order synthetic Q-enhanced LC band-pass filter (BPF) in 0.13 µm SiGe BiCMOS, where 4th-order BPF response has been synthesized by subtracting two 2nd-order BPF responses. Operating frequency of the filter is tunable from 4–8 GHz. Using a switched-varactor control for a high linearity, the filter achieves 150–166 dB · Hz normalized dynamic range (DR) with a tunable fractional bandwidth range of 2–25% at the center frequency of 6 GHz. The ultimate out-of-band rejection of the filter is > 65 dB and > 52 dB on the lower and upper side of the center frequency, respectively. The filter consumes 112–125 mW of DC power dissipation. The core chip size is 0.53×0.7 mm2.