Design and analysis of novel microstrip patch antenna array based on photonic crystal in THz

摘要

Recent advancements in communication systems require a high possible data rate and high gain to overcome the path losses. In this paper, a high gain novel microstrip patch antenna array design is proposed based on the photonic crystal in terahertz (THz), which can be employed for the next generation wireless communication technology and other interesting applications. The proposed antenna array is designed based on a thick silicon substrate having a high relative permittivity and embedded air cylinder holes, and then the radiation characteristics of this antenna array are compared to the one that is mounted on the homogeneous substrate. To validate the accuracy of the proposed antenna array, two different simulation techniques are used, CST Microwave Studio based on the finite integration technique and Ansys HFSS based on finite element technique which showed the convergence. For high radiation characteristics, the proposed antenna array resonated around 0.65 THz and showed remarkable enhancements. The projected design antenna array has obtained a minimal return loss of -53.66 dB, a larger bandwidth of 113.01 GHz and VSWR close to unity at a resonant frequency of 0.601 THz. The achieved gain and radiation efficiency were 11.60 dB and 86.75 %, respectively. Finally, the fabrication process to release the proposed antenna array structure is presented, furthermore, the link budget analysis is discussed by estimating the total loss.