Analysis of graphene based optically transparent patch antenna for terahertz communications |
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| Institution: | 1. Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, 211004, India;2. Department of Electronics and Telecommunication Engineering, SGSITS, Indore, Madhya Pradesh, 452003, India;1. Laboratoire d’Analyse des Signaux et Systèmes, Department of Electronics, University of Mohamed Boudiaf M''sila BP.166, Route Ichebilia, M''sila 28000, Algeria;2. Energie, Matériaux, Télécommunications, Institut National de la Recherche Scientifique (INRS) Montréal, Canada |
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| Abstract: | With and without multi walled carbon nanotube (MWCNT) loaded graphene based optically transparent patch antennas are designed to resonate at 6 THz. Their radiation characteristics are analyzed in 5.66–6.43 THz band. The optically transparent graphene is deployed as the patch and ground plane of the antennas, which are separated by a 2.5 μm thick flexible polyimide substrate. By shorting the microstrip line and ground plane of the antenna with a MWCNT via, the return loss of the antenna is improved. The peak gain of 3.3dB at 6.2 THz and a gain greater than 3dB in 5.66–6.43 THz band is obtained for antenna loaded without MWCNT. Both the antennas achieved a −10dB impedance bandwidth of 12.83%. Gain, directivity and radiation efficiency of the proposed antennas are compared with conventional transparent patch antennas and graphene based non-transparent antennas. The antenna structures are simulated by using finite element method based electromagnetic simulator-Ansys HFSS. |
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| Keywords: | Graphene Transparent antenna Graphene antenna Patch antenna MWCNT loaded antenna Terahertz |
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