Abstract
In this paper, an antenna designed based on chemical potential by changing fermi energy for DC orientation. In addition, the effect of gaps in the antenna have been investigated to provide circular polarization. It was concluded that the number of gaps had no effect on the polarization of RHCP and LHCP. It also examines how to add extra two sections at the edges of the proposed antenna to create polarization. According to this study, adding two diagonal edges in one direction in the patch antenna does not create circular polarization. But these additional sections, with the phase difference ± 90 with each other, construct two components of the orthogonal field to create a circular polarization. The theoretical relationship between chemical potential and axial ratio has also been investigated, which has not been mentioned in recent articles. Thus, in this paper, only the possibility of achieving an antenna with optimal compatibility in the frequency range of 1.58–1.63 THz at the resonance frequency has been investigated. Also, ideal conditions in RHCP and LHCP modes, antenna axial ratio of less than 3 dB in the frequency range of 1.58–1.63 THz in the resonant frequency is obtained. Finally, efficiency is 58% at the frequency of 1.6 THz.
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