Imperial College London

Professor Stepan Lucyszyn

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Professor of Millimetre-wave Systems
 
 
 
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Contact

 

+44 (0)20 7594 6167s.lucyszyn Website CV

 
 
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Assistant

 

Mrs Jay Sahote +44 (0)20 7594 6215

 
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Location

 

602Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Muller:2015:10.1049/el.2015.1429,
author = {Muller, AA and Lucyszyn, S},
doi = {10.1049/el.2015.1429},
journal = {Electronics Letters},
pages = {1882--1884},
title = {Properties of purely reactive Foster and non-Foster passive networks},
url = {http://dx.doi.org/10.1049/el.2015.1429},
volume = {51},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The mathematical concept of strongly real functions of positive and negative types is introduced to network theory for the first time. In this letter we show that the driving point reactance/susceptance of a pure Foster network, made up of only ideal positive inductance and capacitance element, is a strongly real function of real frequency of positive type. As a corollary, for a pure non-Foster network made up of only ideal negative inductance and capacitance elements, we show that the driving point reactance/susceptance is a strongly real function of real frequency of negative type. It is shown that a condition for a purely reactive passive network to exhibit a positive or negative reactance/susceptance-frequency gradient is that the driving point immittance should have alternating poles and zeros lying on the real frequency axis. Finally, it is shown that either purely Foster or non-Foster networks can be constructed by combining ideal Foster and non-Foster reactive elements.
AU - Muller,AA
AU - Lucyszyn,S
DO - 10.1049/el.2015.1429
EP - 1884
PY - 2015///
SN - 0013-5194
SP - 1882
TI - Properties of purely reactive Foster and non-Foster passive networks
T2 - Electronics Letters
UR - http://dx.doi.org/10.1049/el.2015.1429
UR - http://digital-library.theiet.org/content/journals/10.1049/el.2015.1429
UR - http://hdl.handle.net/10044/1/26552
VL - 51
ER -