A S/C/X/Ku-band, 4-Tap, Digitally Controllable Analog FIR Filter with Reconfigurable Bandwidth and RF Filtering Profile
- Authors
- Cho, Moon-Kyu; Song, Ickhyun; Lourenco, Nelson E.; Cardoso, Adilson S.; Coen, Christopher T.; Hunter, William B.; Denison, Douglas R.; Cressler, John D.
- Issue Date
- Jan-2022
- Publisher
- IEEE
- Keywords
- Analog filter; BiCMOS; finite impulse response (FIR) filter; monolithic microwave integrated circuit; reconfigurable; SiGe; wideband
- Citation
- 2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2021, pp.1 - 4
- Indexed
- SCOPUS
- Journal Title
- 2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2021
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/139749
- DOI
- 10.1109/BCICTS50416.2021.9682205
- Abstract
- A proposed wideband integrated 4-tap analog finite impulse response (AFIR) filter has been implemented in silicon germanium (SiGe) technology for use in direct-throughput of RF signals in the microwave and millimeter-wave spectrum. To simultaneously provide bandwidth and RF filtering profile tunability, a wideband coefficient/polarity control circuit and time delay elements are utilized. The proposed 4-tap AFIR filter consists of coefficient/polarity/tap control circuits with equalization, time delay elements, wideband Wilkinson power divider/combiners, a two-stage low-noise amplifier (LNA) with equal power distribution, and an active power combiner. The proposed AFIR filter addresses flat in-band response, low-pass filter (LPF), high-pass filter (HPF), and notch filter depending on coefficient and polarity control sets. To provide simple system configuration and a high integration level for a multi-tap AFIR system, all required coefficients, polarities, and taps are controlled by digital control units.
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