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All Journal Journal of Electronics, Electromedical Engineering, and Medical Informatics Applied Engineering and Technology
Ahmed, Md. Firoz
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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A Circular Ring Patch Antenna for Breast Cancer Detection Based on Return Loss and VSWR Ahmed, Md. Firoz; Kabir, M. Hasnat
Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol 6 No 4 (2024): October
Publisher : Department of Electromedical Engineering, POLTEKKES KEMENKES SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/jeeemi.v6i4.456

Abstract

Breast cancer is a serious condition that affects women and requires timely identification. Various methods such as magnetic resonance imaging, mammography, digital mammography, and computer-aided detection are used for this purpose. However, these techniques have their drawbacks. To address this issue, a new approach is proposed and detailed in this paper. In this novel method, a circular patch antenna is employed to detect tumors in a breast phantom. The analysis of return loss and voltage standing wave ratio (VSWR) helps in identifying the presence of tumors. High-frequency structure simulator (HFSS) software is employed to design and simulate the antenna for an ultra-wideband (3.1 – 10.6 GHz) frequency of 5.2 GHz, along with a breast phantom with and without a tumor. The antenna is independently simulated on both the breast phantoms with and without tumors. Rogers RT/duroid 5880 (tm) dielectric material is employed to design the antenna, with overall dimensions of 30 × 20 × 0.8 mm3. It possesses a dielectric constant of 2.2, a tangent loss of 0.02, and a thickness of 0.8 mm. The ring slot and partial ground plane techniques are employed to increase the overall effectiveness of the antenna. The properties of the antenna, such as return loss and VSWR, change when simulated with and without a tumor. The presence of a tumor within the breast is clearly indicated by the alterations in return loss and VSWR. The antenna proposed exhibits remarkable efficacy in the detection of tumors owing to its inconspicuous features, straightforward design, petite dimensions, and ideal impedance matching.
A compact patch antenna for wireless sensor network applications in WLAN Ahmed, Md. Firoz; Bashir, Samiul; Paul, Pronab Kumar; Islam, Md. Bipul; Uddin, A.N.M. Shihab; Kabir, M. Hasnat
Applied Engineering and Technology Vol 3, No 3 (2024): December 2024
Publisher : ASCEE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/aet.v3i3.1702

Abstract

In wireless sensor networks (WSNs), antennas play a crucial role in enlarging network capacity, prolonging transmission distances, fostering spatial reuse, and minimizing interference. This paper delineates a miniature rectangular patch antenna featuring partial grounding, meticulously engineered for the WLAN (wireless local area network) to promote real-time operations within WSNs. The main goal is to augment the creation and execution of a patch antenna that aligns with the typical size and power constraints of WSN nodes. The antenna is engineered and simulated for a 2.4 GHz WLAN frequency band (2.4 – 2.48 GHz) by leveraging CST Microwave Studio 2024. It is fabricated on a 45 mm × 50 mm FR4 substrate (εr = 4.3, thickness = 1.4 mm, loss tangent = 0.025). The antenna is energized via a 50 Ω microstrip inset-feed line. This antenna demonstrates a substantial bandwidth of 159.729 MHz (2.31963 GHz to 2.479359 GHz), an impressive return loss of – 48.15956 dB, a VSWR (voltage standing wave ratio) of 1.007848, a directivity of 4.7 dBi, a gain of 3.04 dBi, and an efficiency of 68.21%. These performance indicators illustrate the antenna’s effectiveness in enabling short-range communication within WSNs. With its compact design, broad bandwidth, and strong performance metrics, this antenna is an efficient and cost-effective solution suitable for various applications in WSNs, including industrial automation, environmental monitoring, healthcare, and smart city initiatives, ensuring reliable and high-quality wireless communication.
Co-Authors Bashir, Samiul Islam, Md. Bipul Kabir, M. Hasnat Paul, Pronab Kumar Uddin, A.N.M. Shihab