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All Journal Jurnal JEETech Journal La Multiapp Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Nurmayanti Zain
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Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Mathematics Other

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Pemberdayaan Perempuan melalui Refleksi Diri dan Coaching di Lingkungan Profesional: Pengabdian Nurmayanti Zain
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2134

Abstract

This community service program was conducted to commemorate Kartini Day through the initiative Journey to The Authentic & Empowered Self, held on April 29, 2025, at the Fiber Room, Telkom Regional 5 Plaza Telkom Indonesia, Makassar. The program targeted professional women of the Srikandi Telkom Group in Eastern Indonesia (KTI), with a focus on enhancing self-awareness, strengthening peer support (She for She), and promoting role transformation through coaching and reflection on Kartini’s values. Activities included reflective presentations, interactive discussions, self-awareness exercises, and group coaching based on emotional support. Results showed increased participant awareness of authentic self-values in social-emotional interactions. Around 85% of participants reported better recognition of their personal needs. They also expressed strong interest in empathy-based leadership and proposed continuity of such programs. This initiative strengthened individual capacity and encouraged the development of a supportive and inclusive work culture. It serves as a model of psychosocial, transformative community engagement for professional women.
Performance Analysis of Building-Embedded Loop Antenna Systems for Smart City IoT Networks Rezki Arifin, Farhan; Zain, Nurmayanti; Ramos Emakarim, Lompo
Jurnal JEETech Vol. 6 No. 2 (2025): Nomor 2 November
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/jeetech.v6i2.6207

Abstract

The increasing demand for seamless connectivity in Smart City environments has encouraged the integration of communication systems directly within building infrastructures. This study presents the performance analysis of a building-embedded loop antenna system designed for sub-GHz Internet of Things (IoT) applications. The proposed antenna, made of stainless steel and embedded in a reinforced concrete column, was modeled and simulated using Ansys HFSS (High Frequency Structure Simulator) based on the Finite Element Method (FEM). Analytical and full-wave simulations were conducted to evaluate key electromagnetic parameters, including return loss, voltage standing wave ratio (VSWR), impedance bandwidth, and radiation characteristics. The results showed that the antenna achieved resonance at 700 MHz with a return loss of –20.95 dB and a VSWR of 1.196, demonstrating excellent impedance matching. The impedance bandwidth covered 563–939 MHz, ensuring compatibility with various IoT protocols such as LoRaWAN, NB-IoT, Z-Wave, and ZigBee. Despite reduced gain due to dielectric absorption and coupling within the concrete medium, the antenna maintained an omnidirectional radiation pattern, suitable for low-power IoT nodes. These findings indicate that building-embedded loop antennas can function as integrated communication elements while preserving architectural integrity.
Transforming Building Infrastructure into Communication Systems for Smart City: A Conceptual Analysis of Metallic Structures as Antennas Zain, Nurmayanti; Arifin, Farhan Rezki; Emakarim, Lompo Ramos
Journal La Multiapp Vol. 6 No. 6 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i6.2431

Abstract

The transformation of building infrastructure into intelligent communication systems is a key enabler of smart city development. This paper investigates the feasibility of utilizing metallic structural elements such as steel reinforcement bars, hollow sections, and galvanized steel as embedded antenna within building frameworks. To provide validated evidence, this work incorporates full-wave electromagnetic simulations using Ansys HFSS to analyze resonance behavior, impedance matching, radiation patterns, and gain performance in the sub-GHz band, particularly around 700 MHz for IoT applications. The simulation results demonstrate that selected building materials can achieve stable resonance and nearly omnidirectional radiation characteristics, with realized gains up to 0.47 dBi and bandwidths sufficient for LPWAN technologies such as NB-IoT and LoRaWAN. These findings confirm the dual functionality of structural metals, offering both mechanical strength and communication capability. The study provides a validated basis for future experimental prototyping and integration of antenna- embedded infrastructures in smart building environments.
Co-Authors Emakarim, Lompo Ramos Farhan Rezki Arifin