Publication detail

Special Transfer Section for Selective Rejecting and Amplification of Bands in Equalization

ŠOTNER, R. SVOBODA, M. SEMENOV, D. POLÁK, L. JEŘÁBEK, J. THEUMER, R. JAIKLA, W.

Original Title

Special Transfer Section for Selective Rejecting and Amplification of Bands in Equalization

Type

journal article in Web of Science

Language

English

Original Abstract

This paper introduces a novel and simple filtering topology for band-reject (notch) and inverse band-reject applications, utilizing two voltage-adjustable operational transconductance amplifiers. The utilization of these active devices enables the implementation of identical topologies for both band-reject and inverse band-reject transfer functions. The resulting responses are harnessed for the cascade synthesis of a specialized comb filter, capable of amplification or attenuating/rejecting specific bands shown on three sub-bands. Both the design of individual sections and the entire cascade have been experimentally verified using active devices manufactured in the TSMC 180 nm CMOS process. Measurements conducted over a range from 10 Hz to 100 kHz demonstrate the importance of the selective filtering, which is significant for various applications, particularly in acoustic, vibration, and magnetic sensing readouts. The example of peaking suppression in magnitude response of emulated environment (acoustic coupling of piezo and microphone) is shown.

Keywords

Band reject; comb; electronic adjustability; inverse response; notch filter; reconfigurability

Authors

ŠOTNER, R.; SVOBODA, M.; SEMENOV, D.; POLÁK, L.; JEŘÁBEK, J.; THEUMER, R.; JAIKLA, W.

Released

10. 6. 2024

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Location

PISCATAWAY

ISBN

1558-0806

Periodical

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS

Year of study

71

Number

9

State

United States of America

Pages from

3986

Pages to

3998

Pages count

13

URL

https://ieeexplore.ieee.org/document/10552283

Full text in the Digital Library

http://hdl.handle.net/11012/249483

BibTex

@article{BUT189471,
  author="Roman {Šotner} and Marek {Svoboda} and Dmitrii {Semenov} and Ladislav {Polák} and Jan {Jeřábek} and Radek {Theumer} and Winai {Jaikla}",
  title="Special Transfer Section for Selective Rejecting and Amplification of Bands in Equalization",
  journal="IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS",
  year="2024",
  volume="71",
  number="9",
  pages="3986--3998",
  doi="10.1109/TCSI.2024.3408691",
  issn="1558-0806",
  url="https://ieeexplore.ieee.org/document/10552283"
}