A full-passband linear-phase band-pass filter equalized with negative group delay circuits

T Shao, Z Wang, S Fang, H Liu, ZN Chen - IEEE Access, 2020 - ieeexplore.ieee.org
A full-passband linear-phase band-pass filter (BPF) equalized with negative group delay
circuits (NGDC) is proposed. The NGDCs are utilized to suppress the salient group delay at …

Recent advances in variable digital filters

S Koshita, M Abe, M Kawamata - Digital Systems, 2018 - books.google.com
Variable digital filters are widely used in a number of applications of signal processing
because of their capability of self-tuning frequency characteristics such as the cutoff …

Optimized design of a variable fractional delay filter with delay error constraints

X Liu, G Ren, W Zhang, S Liang - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A novel algorithm for designing variable fractional delay (VFD) filter coefficients is proposed
to improve time delay accuracy. The principle of this method is to model the coefficient …

Design and Micro-Nano Fabrication of a GaAs-Based On-Chip Miniaturized Bandpass Filter with Intertwined Inductors and Circinate Capacitor Using Integrated …

J Chen, BH Zhu, S Yang, W Yue, DM Lee, ES Kim… - Nanomaterials, 2022 - mdpi.com
In this study, we propose a miniaturized bandpass filter (BPF) developed by combining an
approximate circular (36-gon) winding inductor, a circinate capacitor, and five air-bridge …

Design of allpass variable fractional delay filter with signed powers-of-two coefficients

C Yu, KL Teo, HH Dam - Signal processing, 2014 - Elsevier
This paper investigates the optimal design of allpass variable fractional delay (VFD) filters
with coefficients expressed as sums of signed powers-of-two terms, where the weighted …

Design of allpass variable fractional delay filter with powers-of-two coefficients

HH Dam - IEEE Signal Processing Letters, 2015 - ieeexplore.ieee.org
In this letter, we develop an algorithm for the design of allpass variable fractional delay filter
with powers-of-two coefficients as a means of achieving low complexity and efficient …

Design of allpass variable fractional delay filter

HH Dam - IEEE transactions on signal processing, 2011 - ieeexplore.ieee.org
This correspondence investigates the least squares and minimax design problems for
allpass variable fractional delay (VFD) filters. A two stage optimization approach is proposed …

Variable fractional delay FIR filter design with a bicriteria and coefficient relationship

HH Dam - IEEE Transactions on Circuits and Systems II …, 2013 - ieeexplore.ieee.org
This brief investigates a tradeoff between the integral squared error and the peak deviation
error for a variable fractional delay (VFD) filter with a coefficient relationship. The integral …

A new time-domain approach for the design of variable FIR filters using the spectral parameter approximation technique

S Dhabu, AP Vinod - Circuits, Systems, and Signal Processing, 2017 - Springer
In the spectral parameter approximation (SPA) technique, the frequency response of a
variable filter is approximated by the frequency response of the Farrow structure which is …

Design of variable fractional delay filter with fractional delay constraints

HH Dam - IEEE Signal Processing Letters, 2014 - ieeexplore.ieee.org
This letter develops an efficient computational procedure for the design of an odd-order
variable fractional delay (VFD) digital filter with minimum peak variable fractional delay error …