Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Ahn Dal is active.

Publication


Featured researches published by Ahn Dal.


Archive | 2012

Education Embedded System for Remote Control

Kwan Sun Choi; Saeron Han; Seongyong Lee; Jongsik Lim; Dong-Sik Kim; Ahn Dal; Changwan Jeon; Sunheum Lee; Sangyeon Woo; HeungGu Jeon

This study implemented a remote control system using PDA based on WINDOWS CE.NET. In existing remote control systems, the user generally controls remote objects and obtain data using a computer, which is a local system connected to the Internet, and the remote objects are connected to server computers. In order to control remote objects, the user has to have a computer, a space to use the Internet, and wired Internet. The system proposed in this study uses an embedded board as a server and PDA as a client. Thus, the user can control remote objects at any place as long as wireless Internet is available. In addition, because an embedded board is used as a server, the system has the characteristics of high performance and low power consumption. The proposed system provides not only remote control environment using PDA but also conventional control environment using a computer as a client. In case PDA is not available, remote objects still can be controlled from any place as long as there are wired Internet and a computer.


Archive | 2012

Graduation Project: Development of an Automation System for Filter Quality Test Using LabVIEW

Kwan Sun Choi; Saeron Han; Seongyong Lee; Jongsik Lim; Dong-Sik Kim; Ahn Dal; Changwan Jeon; Sunheum Lee; Sangyeon Woo; HeungGu Jeon

This paper presents a system of automatic filter quality test for the filter activeness during the process of the filter production was embodied with LabVIEW server and conveyer system. The LabVIEW server is LabVIEWs function as web server which can be remote controlled during filter quality test through on web. The conveyer system is constructed with Conveyer, Network Analyzer and PC Camera. The LabVIEW server controls conveyer motor and sensor using DAQ card and controls Network Analyzer using GPIB card for measuring S parameter of filters. Moreover, PC camera is for monitoring the process of remote controlling during the filter test. And the data base construction from results of Network Analyzers measurement made possible to manage special information of filters.


Archive | 2018

PLANAR TYPE MAGIC TEE

Ahn Dal; Do Hanju; Kim Heehwang; Jang Youna; Lim Jong-Sik


Archive | 2016

PLANAR MAGIC TEE

Ahn Dal; Do Hanju; Kim Heehwang; Jang Youna; Lim Jong-Sik


Archive | 2016

HYBRID COUPLER USING INTENTIONAL MISMATCHING

Ahn Dal; Lim Jong-Sik; Jang Youna; Park Minwon


The Journal of Korean Institute of Electromagnetic Engineering and Science | 2006

A Design of Generalized Chebyshev LPF Using Defected Ground Structure

Kim In-Seon; Kim Jong-Wook; Ahn Dal


The Journal of Korean Institute of Electromagnetic Engineering and Science | 2006

High Efficient Phase Shifters Using Defected Ground Structures

Han Sang-Min; Kim Chul-Soo; Ahn Dal


The Journal of Korean Institute of Electromagnetic Engineering and Science | 2006

Ultra Wideband CPW Baluns Having Multistage Wilkinson Structure

Lim Jong-Sik; Park Ung-Hee; Jeong Yong-Chae; Ahn Dal; Oh Seong-Min; Koo Jae-Jin; Kim Kwang-Soo


Journal of the Korea Academia-Industrial cooperation Society | 2006

A Study on the Characteristics of Microwave Transmission Lines Having Defected Ground Structures and Lumped Elements

Lim Jong-Sik; Bae Ju-Seok; Choi Kwan-Sun; Ahn Dal


The Journal of Korean Institute of Electromagnetic Engineering and Science | 2005

A Size-Reduced CPW Balun with the Wilkinson Divider Structure Using a Crossing Structure

Lim Jong-Sik; Yang Hoe-Sung; Kim Dong-Joo; Jeong Yong-Chae; Ahn Dal; Kim Kwang-Soo

Collaboration


Dive into the Ahn Dal's collaboration.

Top Co-Authors

Avatar

Lim Jong-Sik

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Jang Youna

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Changwan Jeon

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Do Hanju

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Dong-Sik Kim

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jongsik Lim

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Kim Heehwang

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Kwan Sun Choi

Soonchunhyang University

View shared research outputs
Top Co-Authors

Avatar

Saeron Han

Soonchunhyang University

View shared research outputs
Researchain Logo
Decentralizing Knowledge