Multi-pole multi-zero frequency-independent phase-shifter
Instrumentation and Detectors
2013-03-01 v1
Abstract
A multi-pole, multi-zero design allowed realizing a "true" phase-shifter (not time-delayer) of flat frequency-response over more than 3 decades (30Hz-100kHz), which can be extended to higher frequencies or broader bands thanks to a modular design. Frequency-dependent optimization of a single resistance made also the gain flat to within few percents. The frequency-independent phase-shifter presented can find application in any experiment in which an action needs to be taken (e.g. a measurement needs to be performed) at a fixed phase-delay relative to an event, regardless of how rapidly the system rotates or oscillates.
Cite
@article{arxiv.1302.7059,
title = {Multi-pole multi-zero frequency-independent phase-shifter},
author = {M. A. Bitar and A. Gallo and F. A. Volpe},
journal= {arXiv preprint arXiv:1302.7059},
year = {2013}
}
Comments
4 pages, 7 figures