INVESTIGATION OF GRAPHENE ANTENNA AT MICROWAVE AND TERAHERTZ FREQUENCY

Abstract

In this desertion report graphene has been used in the designing of an antenna and the performance of that antennas are analyzed performance in terms of return loss VSWR and far field pattern. In this report graphene has been used in different configuration like in SIW graphene has been used in the form of stack of alumina and graphene. Alumina is used because graphene has been grown on a few substrate and alumina is one of that substrate so after growing the graphene on alumina we can use it or form the stack of graphene and alumina. In SIW technique the spacing between the via is more focusing point in proposed structure the spacing between the via is 9  . The second structure, spiral graphene has been used as a radiating element which give us broadband characteristics. Which gives us a 1:9 bandwidth and we have observed that the center frequency is changed as of chemical frequency is change with the change in return loss. The third structure, the curved antenna which is for the GHz application. In that antenna structure we have analysis the graphene antenna on different substrate and we have used polyimide and paper as a substrate after changing the substrate lots of result change. All simulation is done with the CST microwave studio.