Tamagnone, Michele
Mosig, Juan R.
Theoretical Limits on the Efficiency of Reconfigurable and Nonreciprocal Graphene Antennas
Ieee Antennas And Wireless Propagation Letters
Ieee Antennas And Wireless Propagation Letters
Ieee Antennas And Wireless Propagation Letters
Ieee Antennas And Wireless Propagation Letters
4
15
Antennas
graphene
nonreciprocity
terahertz
theoretical limit
2016
2016
Theoretical upper limits on the radiation efficiency of reconfigurable antennas based on graphene are presented in closed form and discussed. The theory provides useful information for the design of these structures independently of the type and geometry of the antenna. The case of beam steering, which is very relevant for recently proposed graphene terahertz reflectarrays, is analyzed in detail. Finally, the theory is extended to the nonreciprocal case demonstrating that magnetostatically biased graphene allows the creation of nonreciprocal antennas, but that also in this case there are precise theoretical limits on the antenna efficiency.
Ieee-Inst Electrical Electronics Engineers Inc
1536-1225
Ieee Antennas And Wireless Propagation Letters
Journal Articles
10.1109/Lawp.2016.2521835