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Active Microwave Metamaterials Incorporating Ideal Gain Devices
- Source :
- Materials, Volume 4, Issue 1, Pages 73-83, Materials, Vol 4, Iss 1, Pp 73-83 (2010)
- Publication Year :
- 2010
- Publisher :
- Molecular Diversity Preservation International, 2010.
-
Abstract
- Incorporation of active devices/media such as transistors for microwave and gain media for optics may be very attractive for enabling desired low loss and broadband metamaterials. Such metamaterials can even have gain which may very well lead to new and exciting physical phenomena. We investigate microwave composite right/left-handed transmission lines (CRLH-TL) incorporating ideal gain devices such as constant negative resistance. With realistic lumped element values, we have shown that the negative phase constant of this kind of transmission lines is maintained (i.e., left-handedness kept) while gain can be obtained (negative attenuation constant of transmission line) simultaneously. Possible implementation and challenging issues of the proposed active CRLH-TL are also discussed.
- Subjects :
- Materials science
Negative resistance
lcsh:Technology
active metamaterial
Article
law.invention
Optics
law
Transmission line
Broadband
General Materials Science
lcsh:Microscopy
lcsh:QC120-168.85
lcsh:QH201-278.5
business.industry
lcsh:T
Transistor
Metamaterial
composite right/left-handed transmission line (CRLH-TL)
Electric power transmission
lcsh:TA1-2040
negative resistance device
lcsh:Descriptive and experimental mechanics
lcsh:Electrical engineering. Electronics. Nuclear engineering
business
Constant (mathematics)
lcsh:Engineering (General). Civil engineering (General)
dispersion/attenuation relation
lcsh:TK1-9971
Microwave
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....413156ded81d36b82d15e5a24ee6979a
- Full Text :
- https://doi.org/10.3390/ma4010073