TY - GEN
T1 - Wideband dual Vivaldi nano-antenna with high radiation efficiency over the infrared frequency band
AU - Iluz, Zeev
AU - Boag, Amir
PY - 2011
Y1 - 2011
N2 - Down scaling the well-known concept of metallic antennas to the optical frequencies offers unique advantages for novel photonic applications. One of the promising new applications is energy harvesting, using a rectenna. A key building block in such a system is an efficient antenna. A dual-Vivaldi nano-antenna is proposed to demonstrate the possibility of wideband operation at Infra-Red (IR) frequencies. According to our numerical results this nano-antenna has both high radiation efficiency and good impedance matching properties over a wide frequency band (more than 122%) in the IR frequency band. The design is based on the well-known Vivaldi antenna placed on Quartz substrate, but operating as a pair instead of a single element. Such pair of Vivaldi antennas oriented in opposite directions produces the main lobe in the broadside direction (normal to the axes of the antennas), rather than the usual peak gain along the axis (end-fire) of a single Vivaldi antennas.
AB - Down scaling the well-known concept of metallic antennas to the optical frequencies offers unique advantages for novel photonic applications. One of the promising new applications is energy harvesting, using a rectenna. A key building block in such a system is an efficient antenna. A dual-Vivaldi nano-antenna is proposed to demonstrate the possibility of wideband operation at Infra-Red (IR) frequencies. According to our numerical results this nano-antenna has both high radiation efficiency and good impedance matching properties over a wide frequency band (more than 122%) in the IR frequency band. The design is based on the well-known Vivaldi antenna placed on Quartz substrate, but operating as a pair instead of a single element. Such pair of Vivaldi antennas oriented in opposite directions produces the main lobe in the broadside direction (normal to the axes of the antennas), rather than the usual peak gain along the axis (end-fire) of a single Vivaldi antennas.
KW - Nanophotonics
KW - Nanostructured materials
KW - Rectennas
KW - Ultra wideband antennas
KW - Vivaldi antennas
UR - http://www.scopus.com/inward/record.url?scp=84855802264&partnerID=8YFLogxK
U2 - 10.1109/COMCAS.2011.6105818
DO - 10.1109/COMCAS.2011.6105818
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AN - SCOPUS:84855802264
SN - 9781457716928
T3 - 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
BT - 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
T2 - 2011 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems, COMCAS 2011
Y2 - 7 November 2011 through 9 November 2011
ER -