TY - GEN
T1 - Active negative refraction index (NRI) transmission line with gain
AU - Jiang, Tao
AU - Chang, Kihun
AU - Tang, Qi
AU - Ran, Lixin
AU - Xin, Hao
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84860654911&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860654911&partnerID=8YFLogxK
U2 - 10.1109/IWAT.2012.6178671
DO - 10.1109/IWAT.2012.6178671
M3 - Conference contribution
AN - SCOPUS:84860654911
SN - 9781467300360
T3 - 2012 IEEE International Workshop on Antenna Technology, iWAT 2012
SP - 297
EP - 298
BT - 2012 IEEE International Workshop on Antenna Technology, iWAT 2012
T2 - 2012 IEEE International Workshop on Antenna Technology, iWAT 2012
Y2 - 5 March 2012 through 7 March 2012
ER -