Network


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

Hotspot


Dive into the research topics where Jung-Yong Choi is active.

Publication


Featured researches published by Jung-Yong Choi.


international conference on advanced communication technology | 2006

Performance analysis of satellite payload antenna design result

Jeom-Hun Lee; Jung-Yong Choi; Jae-Hoon Kim; Sunyi Lee; Seung-Hyeub Oh

This paper analysis the performance for the design result of the satellite payload antenna, which consists of the parabolic reflector, and multi-feed horns. For the development of the satellite payload antenna design, many steps are needed: antenna geometry design, manufacturing, initial performance test, alignment and performance test, environment test, final performance test and satellite mount test. The antenna geometry design result as the first step of antenna development must be accurate as well as be proposed with the allowable error value to be arisen during the manufacturing, transport, launch, and operation in space environment, because the re-design of antenna electrical design may be difficult during development. Therefore, the design should be verified at electrical design step. This paper describes the verification method of design result and the allowable error during manufacturing, which is restricted by the design


ieee antennas and propagation society international symposium | 2006

Verification of Satellite Payload Multibeam Antenna Design

Jeom-Hun Lee; Jung-Yong Choi; Jae-Hoon Kim; Seung-Hyeub Oh

One of the critical steps in developing the satellite payload multibeam antenna is antenna geometry design. To ensure the accuracy of the design and determine whether the design is within the allowable error value, it needs to be verified. This paper presents a simple method for verification of antenna design results and the allowable error during antenna manufacturing


Archive | 2005

Memory devices configured to detect failure of temperature sensors thereof and methods of operating and testing same

Jae-Eung Shim; Jung-Yong Choi; Young-Gu Kang; Min-Gyu Hwang


Archive | 2003

Semiconductor memory device having an internal voltage generation circuit for selectively generating an internal voltage according to an external voltage level

Kyu-Chan Lee; Sang-Jae Rhee; Jung-Yong Choi; Jong-Hyun Choi; Jong-sik Suji-eub Yongin-city Na; Jae-Hoon Suwon Kim


Archive | 2004

Method and memory system in which operating mode is set using address signal

Young-Gu Kang; Jong-Hyun Choi; Woo-Seop Jeong; Ki-Ho Jang; Jung-Yong Choi


Archive | 2006

Temperature sensor instruction signal generator and semiconductor memory device having the same

Jong-Hyun Choi; Dong-Il Seo; Yong-Gu Kang; Jung-Yong Choi; Young-Hun Seo


Archive | 2006

Semiconductor memory device having self refresh mode and related method of operation

Jung-Yong Choi; Young-Gu Kang; Ki-Ho Jang


Archive | 2004

Memory system and method for setting operation mode by address signal

▲鄭▼又變; Jung-Yong Choi; Ki-Ho Jang; Woo-Seop Jeong; Young-Gu Kang; Shoken Sai; 姜榮九; 崔重▲ヨウ▼; 崔鐘賢; 張奇豪


Archive | 2006

Memory device input buffer, related memory device, controller and system

Dong-Woo Lee; Jung-Yong Choi; Jong-Hyun Choi


Archive | 2002

Semiconductor memory device and a method for generating a block selection signal of the same

Jung-Yong Choi; Young-Gu Kang

Collaboration


Dive into the Jung-Yong Choi's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jeom-Hun Lee

Electronics and Telecommunications Research Institute

View shared research outputs
Top Co-Authors

Avatar

Seung-Hyeub Oh

Chungnam National University

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge