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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN Equivalent : Journal of Economic, Accounting and Management
Arif Fahmi
Unknown Affiliation
Automotive Engineering Economics, Econometrics & Finance Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PROTOTYPE ANTENA OMNIDIRECTIONAL MIKROSTRIP PATCH ARRAY SEBAGAI PENGUAT TRANSMITTER RADAR PESAWAT TERBANG PADA FREKUENSI 1030MHZ Arif Fahmi; Dodi Setiabudi
ROTOR 2016: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (813.933 KB)

Abstract

Radar SSR (Secondary Surveillance Radar) is an equipment to detect and determine the position and target data around him actively, where the plane took active if it receives the RF signal emitted secondary radar. In this study aims (1) to design a prototype omnidirectional microstrip patches array for applications Radar SSR (Secondary Surveillance Radar) according to the characteristics of the antenna by using the software High Frequency Structure Simulator version 13 (HFSS v13) that operate at a frequency of 1030-1090 MHz and get characteristics of the antenna such as Voltage Standing Wave Ratio (VSWR), the radiation pattern and gain (2) Implement the design of antenna omnidirectional microstrip patches array into physical form and measure VSWR, gain and radiation pattern characteristics of the prototype has been created and analyzed the characteristics Between desaian antenna with the prototype antenna that has been made. This research method using the rectangular microstrip patches dimensional array to determine the size of the microstrip antenna array patches and simulated using HFSS v13 software. The results of the analysis parameters pacth microstrip antenna array in HFSS v13 Software demonstrate the value of Ref. AMPL his 40.950739 dB, the analysis results pacth microstrip antenna array using the software HFSS v13 obtained gain value by achieving -29dB, and the results of the analysis, the value of the radiation pattern reaches the radiation pattern of 33.28dBm. Keywords: SSR, HFSS v13, VSWR, gain, radiation pattern, antenna, microstrip pacth array.
The Effect of Transformational Leadership and Intrinsic Motivation on Employee Performance with Work Discipline as an Intervening Variable on Employees in the Planning Field, the Field Distribution and Commerce and Management Fields Customers at PT PLN (Persero) UID North Sumatra Arif Fahmi; Husni Muharram Ritonga
Equivalent : Journal of Economic, Accounting and Management Vol. 4 No. 1 (2026): Equivalent : Journal of Economic, Accounting and Management
Publisher : CV. Doki Course and Training

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61994/equivalent.v4i1.1798

Abstract

This research seeks to explore how transformational leadership and intrinsic motivation impact employee performance, with work discipline serving as a mediating variable, among workers in the Planning, Distribution, and Commerce and Customer Management Divisions at PT PLN (Persero) UID North Sumatra. A quantitative methodology was employed via a survey approach. The entire workforce of 99 employees was included through a saturated sampling strategy. Data was gathered using a questionnaire, and the analysis was carried out using Structural Equation Modeling based on Partial Least Squares (SEM-PLS). The findings show that transformational leadership and intrinsic motivation positively and significantly influence both work discipline and employee performance. Additionally, work discipline has a positive and significant impact on employee performance and functions as a mediating factor in the connection between transformational leadership and intrinsic motivation concerning employee performance. These results support the idea that enhancing employee performance can be achieved through the application of transformational leadership and boosting intrinsic motivation, backed by effective work discipline.
Co-Authors Dodi Setiabudi Husni Muharram Ritonga