Antenna matching network using new class of non-Foster reactive elements

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Authors

Colleges, School and Institutes

External organisations

  • Dep. Electronic

Abstract

Small antennas are subject to gain-bandwidth limits when matched with passive matching networks. Non-Foster reactive elements have been proposed as a means to bypass those restrictions. However, these active non-Foster circuits are susceptible to instability when they are realised using the transistorised Negative Impedance Converters (NICs), due to the parasitic elements in the transistor models at higher frequencies, and limit the achievable top frequency. This paper develops the idea of a new class of non-Foster reactive elements based on negative group delay (NGD) networks, overcoming the stability problems of existing methods.

Details

Original languageEnglish
Title of host publication2017 International Workshop on Electromagnetics
Subtitle of host publicationApplications and Student Innovation Competition, iWEM 2017
EditorsYi Wang, Kwok-Kan So
Publication statusPublished - 5 Jul 2017
Event8th International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017 - London, United Kingdom
Duration: 30 May 20171 Jun 2017

Publication series

Name2017 International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017

Conference

Conference8th International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2017
CountryUnited Kingdom
CityLondon
Period30/05/171/06/17

Keywords

  • negative group delay (NGD), negative resistance circuits, non-Foster circuits