• Title/Summary/Keyword: tile module

Search Result 26, Processing Time 0.025 seconds

A Design of X-Band Tile Type Active Transmit/Receive Module (X 대역 타일형 능동 송수신 모듈 설계)

  • Ha, Jung-Hyen;Moon, Ju-Young;Lee, Ki-Won;Nam, Byung-Chang;Yun, Sang-Won
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.21 no.12
    • /
    • pp.1467-1474
    • /
    • 2010
  • A tile type active T/R(Transmit/Receive) module for X-band active array radar is demonstrated in this paper. Proposed tile type structure based on fuzz button solderless vertical interconnection shows wide band characteristic of about 30 % bandwidth in X-band with insertion loss of below 0.6 dB and input and output VSWR of less than 1.7. Moreover, the mismatching generally appeared in the vertical interconnection which shown wide band characteristic can also be minimized and, therefore, good gain flatness can be achieved.

A Development of Module Operating on Standby-power Reduction for PLC Control Modem (제어용 PLC 모뎀을 위한 대기전력 절감 모듈 개발)

  • Kim, Kl-Hyun;Kim, Ji-Hong;Kim, Nam-Kyun;Kim, Sang-Cheol;Seo, Kil-Soo;Kim, Eun-Dong
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2004.07a
    • /
    • pp.296-299
    • /
    • 2004
  • This paper introduces a supplementary module reducing tile standby-power of Power Line Communication(PLC) modem, one of the network equipments that take up much of tile stand-by power. This supplementary module consists of three parts, such as a compare part, a control part, and a switch part. This supplementary module controls the power going from the power supply element into PLC modem, which brings about the effect of standby-power reduction. It is assured that over 30% standby-power reduction is estimated when we applied this module to a low-speedy PLC control modem.

  • PDF

Enhancing Freeze-Thaw Resilience in Adhered Mortar Tile Modules (떠붙임 모르타르 타일 모듈의 동결융해 저항성 평가)

  • Pyeon, Su-Jeong;Kim, Gyu-Yong;Kim, Moon-Kyu;Choi, Byung-Cheol;Ji, Sung-Jun;Nam, Jeong-Soo
    • Journal of the Korea Institute of Building Construction
    • /
    • v.23 no.3
    • /
    • pp.241-249
    • /
    • 2023
  • The objective of this research was to engineer a tile module that could efficiently curtail the incidence of tile defects during the construction phase. To assess the potential diminution in defect manifestation, we executed experiments centered on surface condition, the variation in mass before and after the freeze-thaw test, and adhesive strength. Our findings demonstrated that thermal contraction and expansion induced a relatively escalated frequency of defects in the underwater setting for the aluminum mesh, while the steel mesh saw a higher defect incidence in the air environment. Additionally, it was noted that the adhesive strength exhibited a trend towards augmentation as the mesh size dwindled. Collectively, these results suggest that the employment of smaller mesh sizes can foster improved adhesive strength, consequently diminishing tile defects. Further exploration and development of the tile module, informed by these insights, can substantially enhance the efficacy of the construction process.

Adhesion Strength Properties of Tile Modules Exposed to Freeze-Thaw Environment (동결융해 환경에 노출된 타일 모듈의 부착강도 특성)

  • Pyeon, Su-Jeong;Kim, Gyu-Yong;Choi, Byung-Cheol;Kim, Moon-Kyu;Eu, Ha-Min;Nam, Jeong-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2023.05a
    • /
    • pp.217-218
    • /
    • 2023
  • In modern architecture, tiles are used as a decorative material to enhance the appearance of buildings. However, defects occurring during tile installation affect not only the appearance of the building, but also its maintenance. This study aims to investigate stable tile installation by producing tile modules using the floating mortar method and conducting freeze-thaw tests to measure their adhesion strength. Test results showed that the adhesion strength increased as the mesh size decreased, except for S3 mesh. This study highlights the importance of research on tile installation to solve problems related to building appearance and maintenance.

  • PDF

The Study on the Dry Floor Tile Unit System used Resin Mat (수지매트를 이용한 바닥타일 건식공법 시스템에 관한 연구)

  • 김성식;임남기;정병훈;정재영;정상진
    • Journal of the Korea Institute of Building Construction
    • /
    • v.1 no.2
    • /
    • pp.185-190
    • /
    • 2001
  • The purpose of this study is the development of practical Dry floor tile unit method that settle the defect of a wet method and designed for resin mat. With use of PE resin which is confirmed the basic property, it is developed that resin mat, joint-sealing compound with fixed form and space management to Dry floor tile unit method. The result of this study is below. 1) To acquire above the 4kgf/$\textrm{cm}^2$ - construction specification criterion, the bonding space that between resin mat and tile has to occupy the 50% of resin mat module space(10,000$\textrm{cm}^2$). 2) Criteria of bonding part plane is below. simpleness of metal form. productivity, uniform quality after injection molding cooling, easy cutting for remain space management, adhesive property, construction ability, transformation of a severed piece under pressure and so on. 3) To get the shape that could protect the interfacial breakdown, it is designed that resin mat and tile are unified after the bond input. 4) Adapted joint-sealing compound is the material of urethane kinds wedge form. Resin mat has the water passageway that could drain the water. 5) To manage the severed piece of tile, the resin mat is likely to divide the half and the quarter and the plastic drainage is developed in the severed piece.

  • PDF

Design and Implementation of a Bluetooth LAN access system for VoIP phone (Bluetooth를 이용한 VOIP Phone 의 Wireless LAN Access System 개발)

  • 김정근;김영덕;장태규
    • Proceedings of the IEEK Conference
    • /
    • 2002.06a
    • /
    • pp.343-346
    • /
    • 2002
  • This paper presents a Prototype system developed for a Bluetooth interfaced VoIP system. The VoIP phone is developed based on tile implementation of a CELP coder on the TI 16bit DSP Processor A PC interfaced with Bluetooth module is used to designing a access point system. Host controller protocol stack is implemented to realize gateway between the wireless and wired line networks. A server application program for user management and call processing, which is based on TCP/IP peer to peer connection, is implemented for tile evaluation of overall interface system.

  • PDF

Three-Phase Soft Switching Sinewave Inverter with Bridge Power Module Package Configurated Auxiliary Resonant AC Link Snubber

  • Iyomori Hisashi;Nagai Shin-ichiro;Shiraishi Kazuhiro;Ahmed Tarek;Eiji Hiraki;Mutsuo Nakaoka
    • Proceedings of the KIPE Conference
    • /
    • 2003.07b
    • /
    • pp.507-510
    • /
    • 2003
  • This paper presents a novel prototype of tile three-phase bridge power block module type a auxiliary resonant AC link snubber circuit, which is effectively used for the three-phase voltage source type sinewave soft switching PWM inverter using IGBTs. Its operating principle Is described for current source load model, along with its practical design approach based on the simulation data. The performance evaluation of the three-phase voltage source type snewave soft switching PWM inverter incorporating a single three-phase bridge mo여le of active auxiliary resonant AC link snubber treated here Is illustrated, which is concerned with power duality efficiency power loss analysis. This inverter is discussed as compared with those of tile three-phase voltage source type sinewave hard switching PWM inverter. The power loss analysis of this soft switching PWM Inverter using IGBT power modules is evaluated on the basis of the measured v-i characteristics and switching power losses of IGBT, and antiparaliel diodes. The practical effectiveness of this inverter is proven by the power loss analysis for distributed power supply.

  • PDF

Analysis on Heat Dissipation Characteristics of a Tile-Type Digital Transmitter/Receiver Module (적층형 디지털송수신모듈의 방열특성 분석)

  • Yoon, Kichul;Kim, Sangwoon;Heo, Jaehun;Kwak, Nojin;Kim, Chan Hong
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.22 no.2
    • /
    • pp.249-254
    • /
    • 2019
  • A Digital Transmitter/Receiver Module(DTRM), which is an essential part in active phased-array radar systems, generates a high heat density, and needs to be properly cooled for stable operation. A tile-type DTRM that is a stacking structure of multi-layer components was modeled with simplification and heat dissipation characteristics of the DTRM model were studied using computational fluid dynamics(CFD) simulations. Most of the heat was dissipated by the heat conduction through the cold plate, but the heat transfer by the forced convection on top of the DTRM also was found to play an important role in the thermal management. Under the given conjugated heat transfer environment, the DTRM was confirmed to secure a stable operating temperature range.

The Fabrication of Compact Active Array Antenna for Drone Detection Radar (드론 탐지 레이다용 위상배열안테나 설계 및 구현)

  • Lim, Jae-Hwan;Jin, Hyoung-Suk;Lee, Jong-Hyun
    • Journal of IKEEE
    • /
    • v.25 no.4
    • /
    • pp.703-709
    • /
    • 2021
  • As drone technology advances, the risks of drones are increasing, then technology to detect drones is becoming important. In this thesis, it was verified that miniaturized and lightweighted active array antenna could be used for radar system to detect drones in reality. The transmit-receive module was designed in the form of tile-type to simplify interconnections between devices. The waveform generation module and the down conversion module were miniaturized to include in one body too. As a result of verifing the detection performance through test, it was confirmed that the detection range was over 3.7Km.

A Design and Fabrication of the Brick Transmit/Receive Module for K Band (K 대역 브릭형 능동 송수신 모듈의 설계 및 제작)

  • Lee, Ki-Won;Moon, Ju-Young;Yun, Sang-Won
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.19 no.8
    • /
    • pp.940-945
    • /
    • 2008
  • In this paper, we have designed the Brick Transmit/Receive Module for K-band which can be applied to active phase array radar system. The proposed structure of T/R Module for K band is brick type for MCM(Multi Chip Module) form and the satisfaction of tile type T/R Module can apply to structure of cavity and main characteristic. The fabricated brick type T/R Module confirmed the main characteristic for electrical goal performance in test and this structure can be applied to active phase array radar.