Browsing by Author "Sarker, Abdullah Al Mamun"

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    Brain Tumor Detection by Kapton Polyimide Based On-Body Patch Antenna in K Band
    (IEEE, 2023-03-21) Eshan, Sumit Hassan; Hasan, Raja Rashidul; Sarker, Abdullah Al Mamun; Zabin, Sadia; Tusher, Raja Tariqul Hasan; Rahman, Md. Abdur
    This paper is all about to design an antenna for brain tumor detection using a novel material Kapton polyimide. A brain tumor, which has the potential to spread throughout the body and result in cancer, is one of the worst disorders. Using a novel material and observing variation in the S1,1 parameter to spot brain cancers is the main objective of this paper. An on-body microstrip patch antenna constructed in the K band and a three-size brain tumor in a brain phantom model were employed to identify the existence of brain tumor. This antenna can operate between 4 and 14 GHz. The resonance frequency of the proposed antenna was discovered to be 12.96 GHz in free space. A VSWR of 1.00 and −92.06 dB S1,1 was also measured in this area. S1,1 is −49.93 dB at 8.58 GHz in the Normal Brain and −40.51 dB at 11.87 GHz in the Tumor Affected Brain.
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    Design and Analysis of a 6G Terahertz Aeronautical Antenna Based on Graphene
    (IEEE, 2024-06-24) Eshan, Sumit Hassan; Hasan, Raja Rashidul; Basak, Rinku; Sarker, Abdullah Al Mamun; Farukuzzaman, Md.; Forhad, Shamim; Babu, Ashrafuzzaman; Rahman, Md. Toufiqur
    Modern technology requires high data transmission for wireless communication. 6G (sixth-generation wireless) is the next generation of wireless technology, following 5G. 6G networks will be able to operate at higher frequencies than 5G networks, resulting in dramatically improved capacity and lower latency. One of the goals of the 6G internet is to allow communications with a latency of one microsecond. A patch antenna is a good choice for its tiny size and configurable frequency. Patch antennas are now popular for use in medical devices, Wi-Fi routers, mobile phones, spacecraft, and aircraft. In this paper, a novel material, Graphene based 6G antenna is proposed for THz applications. This paper proposes a triangular patch antenna for THz applications where Copper is used as ground, Rogers is used at the substrate as an insulator, and graphene is used at the patch as a conductor. The dimension of the antenna is (23×18×1.6)μm. The performance of the proposed antenna is analyzed using CST simulation software. Based on the simulation results, The return loss of the antenna is found -95.71 dB at the 6.82 THz resonant frequency, and the VSWR of the antenna is 1.00. The Far-Field directivity of the antenna is 5.076 dBi. Therefore, the proposed antenna is suitable for aerospace applications.