A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end
This paper presents a third-order Butterworth low-pass filter (LPF) with continuously tuning capability to be used in the receiver front-end for Wireless Body Area Network (WBAN). To realize the bandwidth tuning for multi-standard operation in WBAN receivers with ultra-low power consumption and mini...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/160782 |
| _version_ | 1826114569220653056 |
|---|---|
| author | Wang, Xiaoying Boon, Chirn Chye Yang, Kaituo Kong, Lingshan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Xiaoying Boon, Chirn Chye Yang, Kaituo Kong, Lingshan |
| author_sort | Wang, Xiaoying |
| collection | NTU |
| description | This paper presents a third-order Butterworth low-pass filter (LPF) with continuously tuning capability to be used in the receiver front-end for Wireless Body Area Network (WBAN). To realize the bandwidth tuning for multi-standard operation in WBAN receivers with ultra-low power consumption and minimized area, a novel transconductor-capacitor (Gm-C) filter is proposed. The proposed transconductor core uses an additional gain stage with regulated cascode structure to control the transconductance ( $G_{m}$ ) by tuning the drain-source voltage $V_{ds}$ of the input transistors operating in linear region. Based on fundamental analysis, $V_{ds}$ should be reduced to attenuate the nonlinear effects caused by higher-order harmonic components. This proposed transconductor circuit enables the $G_{m}$ tuning and widens the tuning range while maintaining good linearity with negligible power and area consumption. This work is then implemented into a third-order Butterworth LPF. Measurements show that with external control voltage varying from 450 mV to 550 mV, the cutoff frequency of the LPF can be continuously adjusted from 20 MHz to 80 MHz. This design is implemented in 40 nm CMOS process with 1.1 V supply voltage. The total power consumption of this work is below 2 mW with an active area of 0.0105 mm2. Its low power consumption and good area efficiency makes this LPF suitable for WBAN applications. |
| first_indexed | 2024-10-01T03:41:34Z |
| format | Journal Article |
| id | ntu-10356/160782 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:41:34Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1607822022-08-02T08:52:54Z A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end Wang, Xiaoying Boon, Chirn Chye Yang, Kaituo Kong, Lingshan School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering CMOS Low-Pass Filter Ultra-Low Power This paper presents a third-order Butterworth low-pass filter (LPF) with continuously tuning capability to be used in the receiver front-end for Wireless Body Area Network (WBAN). To realize the bandwidth tuning for multi-standard operation in WBAN receivers with ultra-low power consumption and minimized area, a novel transconductor-capacitor (Gm-C) filter is proposed. The proposed transconductor core uses an additional gain stage with regulated cascode structure to control the transconductance ( $G_{m}$ ) by tuning the drain-source voltage $V_{ds}$ of the input transistors operating in linear region. Based on fundamental analysis, $V_{ds}$ should be reduced to attenuate the nonlinear effects caused by higher-order harmonic components. This proposed transconductor circuit enables the $G_{m}$ tuning and widens the tuning range while maintaining good linearity with negligible power and area consumption. This work is then implemented into a third-order Butterworth LPF. Measurements show that with external control voltage varying from 450 mV to 550 mV, the cutoff frequency of the LPF can be continuously adjusted from 20 MHz to 80 MHz. This design is implemented in 40 nm CMOS process with 1.1 V supply voltage. The total power consumption of this work is below 2 mW with an active area of 0.0105 mm2. Its low power consumption and good area efficiency makes this LPF suitable for WBAN applications. Ministry of Education (MOE) Published version This work was supported by the Singapore Ministry of Education Academic Research Fund Tier 2 under Grant MOE2019-T2-1-114. 2022-08-02T08:52:54Z 2022-08-02T08:52:54Z 2021 Journal Article Wang, X., Boon, C. C., Yang, K. & Kong, L. (2021). A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end. IEEE Access, 9, 154136-154142. https://dx.doi.org/10.1109/ACCESS.2021.3128154 2169-3536 https://hdl.handle.net/10356/160782 10.1109/ACCESS.2021.3128154 2-s2.0-85120475012 9 154136 154142 en MOE2019-T2-1-114 IEEE Access © 2021 The Author(s). Published by IEEE. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering CMOS Low-Pass Filter Ultra-Low Power Wang, Xiaoying Boon, Chirn Chye Yang, Kaituo Kong, Lingshan A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title | A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title_full | A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title_fullStr | A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title_full_unstemmed | A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title_short | A 20-80 MHz continuously tunable Gm-C low-pass filter for ultra-low power WBAN receiver front-end |
| title_sort | 20 80 mhz continuously tunable gm c low pass filter for ultra low power wban receiver front end |
| topic | Engineering::Electrical and electronic engineering CMOS Low-Pass Filter Ultra-Low Power |
| url | https://hdl.handle.net/10356/160782 |
| work_keys_str_mv | AT wangxiaoying a2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT boonchirnchye a2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT yangkaituo a2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT konglingshan a2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT wangxiaoying 2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT boonchirnchye 2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT yangkaituo 2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend AT konglingshan 2080mhzcontinuouslytunablegmclowpassfilterforultralowpowerwbanreceiverfrontend |