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All Journal Emerging Science Journal Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI)
Danudirdjo, Donny
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Dentistry Energy Environmental Science Health Professions Medicine & Pharmacology Physics

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Development of cephalometric radiography in orthodontic imaging: a literature review Prativi, Shinta Amini; Suksmono, Andriyan Bayu; Mengko, Tati Latifah; Danudirdjo, Donny
Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI) Vol 9 No 2 (2025): Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI)
Publisher : Ikatan Radiologi Kedokteran Gigi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32793/jrdi.v9i2.1344

Abstract

Objectives: This review article aims to discuss the development of lateral cephalometric radiography use in science until now. Review: The search for studies on the identification of lateral cephalometric anatomical landmarks based on artificial intelligence was conducted by involving four databases: PubMed, IEEE Xplore, Google Scholar, and Scopus. The article selection was conducted using the keywords "Cephalometric Radiograph," "Automatic Cephalometric," "Cephalometric Landmarking," and "Cephalometric Digital" from January 2000 to March 2022. A total of 11 articles were obtained for this study. Cephalometric radiography is a radiographic technique that shows a picture of the skull and is widely used in dentistry to analyze and assess the relationship between teeth, jaws, and facial bones. Cephalometric analysis can be done by identifying anatomical landmark points and measuring angles on lateral cephalometric radiographs. The development of cephalometric radiography in biomedical imaging, especially in terms of the processing of cephalometric radiograph images from the process of forming X-rays to their potential use in the process of determining automatic anatomical landmark points. Conclusion: The results of the literature review of the development of dental radiology, especially digital cephalometric radiography, continue to increase, and its development is supported by computing technology, especially Artificial Intelligence. Keywords: Lateral cephalometric; biomedical imaging; artificial intelligence
Design and Evaluation of C-Band Microstrip Antenna Array for Portable Ground Surveillance Radar Matheus Edward, Ian Josef; Hariyadi, Tommi; Shalannanda, Wervyan; Bharata, Endon; Danudirdjo, Donny; Hidayat, Yosi A.; Hariyanto, Dharma Favitri; Mustafa, Alvin; Kusmadi; Nugroho, Sapto Adi; Ridwan, Nerissa Arviana
Emerging Science Journal Vol. 9 No. 6 (2025): December
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/ESJ-2025-09-06-015

Abstract

This study aims to design, simulate, fabricate, and evaluate a high-gain C-band microstrip antenna array with a corrugation plate for Portable Ground Surveillance Radar (PGSR) applications, addressing the need for compact, high-performance antennas in border security operations. The proposed design targets a minimum gain of 20 dBi, a horizontal beamwidth of ≤ 2.8°, a vertical beamwidth of ≤7.5°, horizontal polarization, and compact physical dimensions for field portability. The methodology involved electromagnetic simulations to optimize the slit-patch array geometry, fabrication using Rogers RO-4350B substrate for its stable dielectric properties, and performance validation in an anechoic chamber using a vector network analyzer. The fabricated prototype achieved strong agreement with simulations in key metrics: realized gain exceeded 20 dBi, return loss reached -27.35 dB, and SWR was approximately 1.2, confirming effective impedance matching. The corrugation plate enhanced impedance matching, improved transmission efficiency (S21), and reduced reverse isolation (S12), while S22 remained stable. Despite these strengths, the measurement beamwidths, especially vertical beamwidth (~30°), exceeded both simulation and target values, highlighting fabrication precision and alignment as areas for improvement. The novelty of this work lies in integrating a corrugation plate to improve impedance matching and the correlation between simulation and measurement, offering a practical, tuneable enhancement to microstrip antenna arrays for PGSR and similar radar systems.
Co-Authors Andriyan Bayu Suksmono, Andriyan Bayu Endon Bharata Hariyanto, Dharma Favitri Hidayat, Yosi A. Kusmadi Matheus Edward, Ian Josef Mustafa, Alvin Nugroho, Sapto Adi prativi, shinta amini Ridwan, Nerissa Arviana Tati Latifah Mengko, Tati Latifah Tommi Hariyadi, Tommi Wervyan Shalannanda