Four port Honeycomb-slotted Line strip with Round cap MIMO Nanoantenna for Optical Frequency Applications

A four-port MIMO Nanoantenna is proposed in this article. The proposed antenna consists of microstrip lines with honeycomb-shaped slots with a round cap with each radiating element. The structural dimension of the MIMO antenna is 20 nm × 20 nm × 1 nm based upon a graphene substrate. The proposed nanoantenna resonates at 3.12 THz, 9.7 THz, and 16.35 THz. Each radiating element is isolated by at least 25dB reaching up to 89.89 dB. The proposed antenna possesses a maximum gain of around 4.5 dB and radiation efficiency of around 92%. The ECC (<0.4), DG (9.6-10 dB), TARC(<-10dB), CCL (<4bps/Hz), and MEG (<-3dB) are also studied with satisfied diversion performance.