Stability of tunnel diode based negative impedance circuit

Qi Tang, Hao Xin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Recently there are increasing interests in incorporating negative impedance converter (NIC) circuits into electrically small antennas to surpass the Chu limit and into metamaterial unit structures to eliminate the strong dispersion. Most of the works are transistor based (e.g. Linvill's NIC circuit) or operational amplifier based (at low frequency). Our previous work has demonstrated some challenging issues remain in these designs, such as the limitation on operation frequency, parasitics, noise and stability. An alternative method to realize NIC circuit is by combining negative resistances and passive lumped elements. The configuration is firstly proposed 80 years ago (L. C. Verman, Proc. IRE, 19, 676-681, 1931), however, without a stability analysis. The negative resistance can be implemented by tunnel diodes, which has the advantages of high operational frequency and low-noise level.

Original languageEnglish (US)
Title of host publication2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC-URSI 2014 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages131
Number of pages1
ISBN (Print)9781479937462
DOIs
Publication statusPublished - Nov 12 2014
Event2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC-URSI 2014 - Memphis, United States
Duration: Jul 6 2014Jul 11 2014

Other

Other2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC-URSI 2014
CountryUnited States
CityMemphis
Period7/6/147/11/14

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ASJC Scopus subject areas

  • Artificial Intelligence
  • Human-Computer Interaction
  • Electrical and Electronic Engineering

Cite this

Tang, Q., & Xin, H. (2014). Stability of tunnel diode based negative impedance circuit. In 2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC-URSI 2014 - Proceedings (pp. 131). [6955513] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/USNC-URSI.2014.6955513