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Hla, Tin Tin
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Computer Science & IT Electrical & Electronics Engineering Engineering

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Comparative Analysis of High Speed and Area Efficient Full-Adder using CMOS and MGDI Techniques Pwint, Hnin Ngwe Yee; Hla, Tin Tin
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.4003

Abstract

Extremely quick processing is crucial for very large-scale integrated (VLSI) circuits in the arithmetic logic unit. Complementary metal oxide semiconductor (CMOS) and modified gate diffusion input (MGDI) are beneficial technologies for designing high-speed circuits with better reliability and performance with regard to area and power consumption. This research work provides a comparative performance analysis of a full adder that is implemented with CMOS and MGDI technology. This work aims to develop a CMOS-based full-adder and a MGDI-based full-adder circuit for area-efficient and high-speed applications. First, the analysis and implementation of the XOR and NAND logic gates are designed using CMOS technology and the MGDI technique to create a full-adder design. The comparative analysis of integrated circuits in CMOS and MGDI technologies is primarily determined by the number of transistors and delay time. The full-adder is designed and analyzed using 90 nm technology, with performance characteristics evaluated using Cadence Virtuoso Tools.
Broadband Quad-Element MIMO Antenna with Enhanced Isolation for Sub-6 GHz and Sub-7 GHz 5G Applications Aung, Mya Sandar; Hla, Tin Tin
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.4013

Abstract

In this manuscript, a broadband quad-element MIMO antenna with enhanced isolation for n77, n78, and n79 bands of Sub-6 GHz and the n46 and n96 bands of Sub-7 GHz under 5G applications is designed. The designed antenna element is a rectangular monopole antenna comprising a semi-circular cut and a semi-circle embedded to obtain a wide bandwidth. These four-element antennas are aligned orthogonally to achieve the compact size and high isolation features of MIMO performance. The overall area of MIMO antenna is 40×40x1.6 mm3. MIMO antenna has a high isolation of <- 21 dB, an envelope correlation coefficient (ECC<0.002), a high diversity gain (DG> 9.99), an MEG gain of -3 dB, and a peak gain of 5.08 dBi.The results of the experiment are satisfactory with the S-parameter simulation results According to the results, a broadband quad-element MIMO antenna is a suitable candidate for Sub-6 GHz and Sub-7 GHz 5G applications.
Design and Analysis of Load Frequency Control for a Two-Area Power System Using Conventional PID and FPID Controllers Win, Khin Thu Zar; Hlaing, May Su; Hla, Tin Tin
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.4066

Abstract

Power system stability is required to maintain a continuous balance between power generation and load demand. Frequency control is also a major function of automatic generation control and one of the most important control problems in power system design and operation. So, a robust control system must be implemented for controlling the actual power and frequency. This paper mainly focuses on the design of a two-area power system with a rated frequency of 50 Hz, which is used in Myanmar, using the fuzzy-PID method to control the load frequency. It also aims to imply from one area to another when demand suddenly increases or decreases. It involves applying mathematical formulas and models to analyze how an automatic generation control works. The plan is first implemented in a single area before being modified to a two-area power system with and without controllers. The output results are simulated with MATLAB/ SIMULINK.
Analysis on Heterostructure Band Diagram Designs and Electrical Characteristics of Light Emitting Diode (LED) Lin, Khin Ohmar; Aye, Maung; Hla, Tin Tin
The Indonesian Journal of Computer Science Vol. 13 No. 4 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i4.4353

Abstract

This paper presents the analysis on hetero-structure band diagram designs and electrical characteristics of light emitting diode (LED). This work is based on physical parameters of ZnCdSe, a ternary alloy semiconductor composed of Zinc (Zn), Cadmium (Cd), and Selenium (Se). In this work, the band diagram design results for n-ZnCdSe/p-Si heterojunction leds are approved by the parameters of the material such as such as effective masses of the materials, doing concentrations, electron and hole hall mobilities, bandgap bowing and so on. The electrical characteristics (energy dispersion with wave vector, intrinsic carrier concentration with temperature, intensity with wavelengths) of LED based on ZnCdSe material are also analyzed in this paper. This simulation curves are done by computer simulation. The band layer design for n-ZnCdSe/p-Si LED confirmed the high quality LED for real applications. This research gives information for the researchers who study in electronic and optoelectronic semiconductor devices.
Co-Authors Aung, Mya Sandar Aye, Maung Han, War War Moe Myint Hlaing, May Su Htwe Ei Ei Khin Khaing Zar Zar Myint Lin, Khin Ohmar Lwin, Zin Mar Moe Myint Aung Mya Su Kyi Myint, Khin Moe Pie, Khin Thet Pwint, Hnin Ngwe Yee Tin Tin Wai Tun, Thwe Zin Win, Khin Thu Zar Zin Mar