Active negative refraction index (NRI) transmission line with gain

Tao Jiang, Kihun Chang, Qi Tang, Lixin Ran, Hao Xin

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

Abstract

We have investigated microwave active negative refractive index (NRI) transmission line (also named composite right-hand / left-hand transmission line, or CRLH-TL) metamaterials incorporating gain devices to provide effective negative resistance. Our simulation and experimental results show that by inserting semiconductor tunnel diode at the unit cell level, the negative phase constant (i.e., left-handedness) of this kind of transmission lines is maintained while gain can be obtained (negative attenuation constant of transmission line) simultaneously. Important design aspects of the active metamaterial transmission lines are discussed. As a potential application, single unit-cell zeroth order resonator (ZOR) antennas based on the passive and active transmission lines are also discussed.

Original languageEnglish (US)
Title of host publication2012 IEEE International Workshop on Antenna Technology, iWAT 2012
Pages297-298
Number of pages2
DOIs
StatePublished - May 11 2012
Event2012 IEEE International Workshop on Antenna Technology, iWAT 2012 - Tuscon, AZ, United States
Duration: Mar 5 2012Mar 7 2012

Publication series

Name2012 IEEE International Workshop on Antenna Technology, iWAT 2012

Other

Other2012 IEEE International Workshop on Antenna Technology, iWAT 2012
CountryUnited States
CityTuscon, AZ
Period3/5/123/7/12

ASJC Scopus subject areas

  • Computer Networks and Communications

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  • Cite this

    Jiang, T., Chang, K., Tang, Q., Ran, L., & Xin, H. (2012). Active negative refraction index (NRI) transmission line with gain. In 2012 IEEE International Workshop on Antenna Technology, iWAT 2012 (pp. 297-298). [6178671] (2012 IEEE International Workshop on Antenna Technology, iWAT 2012). https://doi.org/10.1109/IWAT.2012.6178671