Wideband hemispherical dielectric lens antenna with stabile radiation pattern for advanced wideband terahertz communications

High directivity microstrip antenna with stopband and passband frequency selective surfaces for 6G at low-THz

“…Not similar to that obtained in work [9], where experimental measurements did verification. While at work [7]- [9], and [10], [11], the simulation results were neither validated nor compared. At this work, like work [9], the wanted THz antenna design was done with the CST MWS software, while at works [7], [8] and [10], the modeling and simulating of the wanted THz antenna were made with an Ansys HFSS software.…”

“…At this work, like work [9], the wanted THz antenna design was done with the CST MWS software, while at works [7], [8] and [10], the modeling and simulating of the wanted THz antenna were made with an Ansys HFSS software. The array and FSS structures have been used to increase the proposed design's directivity in this research, where at [9], [11], the lens techniques have been used to increase the antenna's directivities. In this research, a 1×32 power splitter was used to increase the antenna's directivities compared to [10], where a 1x2 power splitter was used.…”

“…The peak gain and BW attained were 5.87 dBi, and 210 GHz (21.3%). Faridani and Khatir [11] modeled, optimized, and simulated an 800 GHz wideband antenna with a Quartz hemisphere lens and microstrip patch antenna based on Rogers RT5880LZ substrate. The BW, peak gain, and radiation efficiency attained were 800 GHz (100%), 13.2 dB, and 95%.…”

“…The BW, peak gain, and radiation efficiency attained were 800 GHz (100%), 13.2 dB, and 95%. Out of the reported published works [7]- [11], it can have been shown that there is still no high-directivity microstrip antenna with directivity beyond 25 dBi, and BW of more than 24%, which can be used for 6G cellular communication at low-THz at the resonance frequency of 144 GHz. This research investigates a low-THz antenna's design and simulation at a resonance frequency of 144 GHz, with good directivity and BW to establish a communication propagation range of over 100 m and enable a data rate of 20 Gb/s for 6G.…”

Analysis of the Various Properties of an Antenna Array’s Radiation

“…Antenna arrays are also very significant as it has the ability to provide a high amount of gain and directivity when alongside beam scanning [7]. Additionally, antenna array's are also used when it comes to producing high-resolution images or videos as this would normally require tremendously high frequencies such as the terahertz range to have the option to appreciate having these resolutions [8,9,10].…”