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All Journal Sinergi Jurnal Teknologi Elektro InComTech: Jurnal Telekomunikasi dan Komputer Indonesian Journal of Electrical Engineering and Computer Science Journal of Telecommunication, Electronics and Control Engineering (JTECE) Journal of Integrated and Advanced Engineering (JIAE)
Umaisaroh Umaisaroh
Universitas Mercu Buana
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Broadband HMSIW antenna using a demi hexagonal ring slot for X-band application Astuti, Dian Widi; Muslim, Muslim; Umaisaroh, Umaisaroh; A Majid, Huda; Alam, Syah
SINERGI Vol 29, No 1 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.1.008

Abstract

Microstrip antennas offer several advantages, including small size, easy fabrication, controllable polarity and radiation patterns, and easy integration with other components. These qualities make microstrip antennas more reliable than other antenna types. However, they also have limitations, such as lower radiation efficiency and narrow bandwidth, primarily due to the thin substrate thickness. Substrate integrated waveguide (SIW) is a type of microstrip antenna. SIW antennas come in two forms: one with a rectangular shape, typically designed as a slot, and the other in the form of a horn. However, SIW slot antennas face challenges with narrow impedance bandwidth due to the thin substrate, unlike conventional bulky hollow waveguides. The half-mode substrate integrated waveguide (HMSIW) slot antenna, which is a 50% miniaturized version of the SIW slot antenna, also suffers from reduced fractional bandwidth, resulting from the miniaturization and the thin substrate. This paper focuses on enhancing the bandwidth of HMSIW antennas by incorporating a demi-hexagonal ring slot. The broadband impedance bandwidth simulation (27.36%) is achieved through triple resonance frequencies to address the issue of narrow impedance bandwidth. Both the simulation results and measurements show consistency, with the measured impedance bandwidth ranging from 8.91 to 12.62 GHz (34.46%), demonstrating at least triple resonance frequencies.
Performances of SMD Components on FR4 Substrates at Higher Frequencies Veronica, Veronica; Umaisaroh, Umaisaroh; Alaydrus, Mudrik
InComTech : Jurnal Telekomunikasi dan Komputer Vol 14, No 3 (2024)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v14i3.29982

Abstract

The advances of many technological wireless systems lead to development of several important microwave circuit components as supporting parts. The last century was the eye-witness of the development of many microwave components implemented on distributed, lumped elements or combination of them.  In the design stage, we must fulfill the specified targets in terms of S-parameters over certain desired frequency intervals. The observation of several surface mounted devices installed in a microstrip structure is an important verification of the characteristics of the components especially at higher frequencies. We use the software ANSYS Electromagnetic Suite and AWR Design Environment as analytical tools. We verify the results by building the structures and measuring the reflection and transmission coefficient. The microstrip structure is modeled in a 1.4mm thick FR-4 substrate, with a dimension 50 mm x 50 mm is backed by a metallic copper ground with a thickness of 0.035 mm. We fabricated the structure under observation and did some measurement to verify its performances using a vector network analyzer. The computer programs give almost the same results for all cases except for the surface mounted device inductance. In this way we can rely on the computational modeling. The reflection and transmission coefficient of a 1.4mm thick microstrip line were verified by measurement with a very good similarity up to 5 GHz. The comparison of the simulated and measured reflection and transmission coefficient for resistor is almost the same for up to around 5 GHz, whereas for capacitor for up to around 6 GHz and for inductor for up to around 7 GHz.
Front Matter vol 14 no 3 Umaisaroh, Umaisaroh
InComTech : Jurnal Telekomunikasi dan Komputer Vol 14, No 3 (2024)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v14i3.31436

Abstract

Front Matter
T-Shaped MIMO Antenna Design with Defected Ground Structure and Parasitic Elements for 5G Application Sherila, Ayu Mika; Umaisaroh, Umaisaroh; Alaydrus, Mudrik
Journal of Telecommunication Electronics and Control Engineering (JTECE) Vol 7 No 1 (2025): Journal of Telecommunication, Electronics, and Control Engineering (JTECE)
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v7i1.1618

Abstract

5G technology is designed to improve efficiency, network capacity, data rate, and coverage with low power consumption. This requires the design of suitable antennas for 5G wireless communications to achieve optimal bandwidth, radiation, efficiency, and performance. MIMO antenna designs use multiple antennas and face the main challenge of reducing mutual coupling between adjacent antenna elements. In this study, the MIMO antenna is designed using T-shaped DGS Technique and parasitic elements. The DGS technique is developed by creating a specific area on the ground plane of the antenna to improve its performance. By incorporating DGS concepts and parasitic elements into the design, the aim is to achieve large bandwidth and high gain. This antenna has dimensions of 52 mm x 12 mm and is simulated using Ansys HFSS software. Measurement results for the antenna using Rogers Duroid RT5880 substrate show a mutual coupling value of -54.2 dB, return loss of -11.1 dB, gain of 13.11 dB, and a sufficiently wide bandwidth. Thus, the proposed antenna can operate at a frequency of 28 GHz, meeting the requirements for 5G applications.
Back Matter Vol 14 No 1 Umaisaroh, Umaisaroh
InComTech : Jurnal Telekomunikasi dan Komputer Vol 14, No 1 (2024)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v14i1.27062

Abstract

Back Matter Vol 14 No 1
Front Matter Vol 14 No 1 Umaisaroh, Umaisaroh
InComTech : Jurnal Telekomunikasi dan Komputer Vol 14, No 1 (2024)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v14i1.27063

Abstract

Front Matter Vol 14 No 1
Front Matter vol 15 no 1 Umaisaroh, Umaisaroh
InComTech : Jurnal Telekomunikasi dan Komputer Vol 15, No 1 (2025)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v15i1.33787

Abstract

Front Matter vol 15 no 1
Rancang Bangun Antena Mikrostrip Triangular Patch Sebagai Pendeteksi Kadar Air Pada Tanah Makarim, Fakhri Zaki; Umaisaroh, Umaisaroh; Alaydrus, Mudrik
InComTech : Jurnal Telekomunikasi dan Komputer Vol 15, No 1 (2025)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v15i1.25563

Abstract

Tanah merupakan lapisan teratas di permukaan bumi yang memiliki peran penting dalam pertanian sebagai media untuk pertumbuhan tanaman yang memerlukan keberadaan air. Kadar air pada tanah menjadi sifat fisik yang berpengaruh langsung terhadap pertumbuhan tanaman dengan jumlah air tertentu. Oleh karena itu dirancanglah sebuah antena mikrostrip triangular patch untuk mendeteksi kadar air pada tanah.Antena mikrostrip dipilih karena memiliki ukuran kecil, bentuk yang ringkas, dan praktis, serta memiliki karakteristik yang dipengaruhi oleh objek di sekitarnya. Antena mikrostrip triangular patch dirancang pada frekuensi 3 GHz, dengan hasil perancangan menunjukkan nilai return loss sebesar -25.9151 dB pada frekuensi 3 GHz setelah dilakukan optimasi. Pada pengukuran, diperoleh nilai return loss sebesar -16.777 dB yang masih sesuai dengan spesifikasi yang ditetapkan yaitu < -10 dB.Pada pengukuran antena mikrostrip triangular patch yang didesain menggunakan objek tanah, frekuensi menjadi parameter yang paling berpengaruh. Tanah yang digunakan adalah tanah andisol, pada kondisi tanah kering, frekuensi kerja antena terukur sebesar 2.91 GHz dengan nilai return loss -6,098 dB, sedangkan pada kondisi tanah basah frekuensi kerja berubah menjadi 2.8 GHz dengan nilai return loss -3,141 dB. Sementara pada tanah laterit kering, frekuensi kerja antena menjadi 2.8 GHz dengan nilai return loss -3,141 dB, sedangkan ketika tanah basah, frekuensi kerja antena menjadi 2 GHz dengan nilai return loss -1,179 dB. Hasil pengukuran menunjukkan bahwa antena yang didesain dapat digunakan untuk mengukur perubahan kadar air pada tanah dengan memperhatikan pengaruh frekuensi kerja antena terhadap kadar air pada tanah.
Front Matter Agustus 2025 Umaisaroh, Umaisaroh
InComTech : Jurnal Telekomunikasi dan Komputer Vol 15, No 2 (2025)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v15i2.36089

Abstract

Front Matter Agustus 2025
Design of a Textile Antenna Using Metasurface Technology for Wireless Body Area Networks Sirait, Nurafifah; Fathurahman, Firhan; Alaydrus, Mudrik; Umaisaroh, Umaisaroh
Journal of Telecommunication Electronics and Control Engineering (JTECE) Vol 6 No 2 (2024): Journal of Telecommunication, Electronics, and Control Engineering (JTECE)
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v6i2.1326

Abstract

Recently, continuous development and distinctive growth have been observed in implementing wearable sensors and flexible devices in real life. This paper shows a wearable textile antenna design based on a metasurface. It operates in the 3.5 GHz. A proposed model provides light on the metasurface's operation. The prototype of the textile antenna using taslan material was observed and exhibited a relative permittivity of 1.41. Based on these values, we designed a square antenna with an amount of parasitic square around modeled as a planar array. We observed the measured reflection coefficient of the three conditions and saw similar results of the reflection coefficient, which is around -25 dB at 3.5 GHz frequency, and the radiation diagram of the antennas reproduced the simulated one.
Co-Authors A Majid, Huda Ahmad Firdausi Ayu Mika Sherila Dian Widi Astuti, Budi Irawan Prima Putra, Dian Widi Astuti, Fathurahman, Firhan Galang Persada Nur Hakim Lusi Damayanti Makarim, Fakhri Zaki Mudrik Alaydrus Muslim Muslim Rizki Nugraha Hidayat Said Attamimi Sirait, Nurafifah Syah Alam VERONICA VERONICA