Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Kyung Duk Jang"'
Autor:
Junhyun Lee, Ensang Lee, Jaejin Lee, Khan-Hyuk Kim, Jongho Seon, Dong-Hun Lee, Ho Jin, Eung-Hyun Kim, Hyun-Jin Jeon, Seong-Bin Lim, Taeyoun Kim, Jaewoong Jang, Kyung-Duk Jang, Kwangsun Ryu
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 31, Iss 4, Pp 311-315 (2014)
In this study, we investigated the effect of space plasmas on the floating potential variation of a low-altitude, polar-orbiting satellite using the Langmuir Probe (LP) measurement onboard the STSAT-1 spacecraft. We focused on small potential drops,
Externí odkaz:
https://doaj.org/article/dac39719a14948888204eb68f1b0f5e9
Autor:
Dong-Hun Lee, Kyung-Duk Jang, Junhyun Lee, JinJaejin Lee, Tae-Youn Kim, Hyun-Jin Jeon, Ho Jin, Seong-Bin Lim, Eunghyun Kim, Jae-Woong Jang, Kwangsun Ryu, Ensang Lee, Jongho Seon, Khan-Hyuk Kim
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 31, Iss 4, Pp 311-315 (2014)
In this study, we investigated the effect of space plasmas on the floating potential variation of a low-altitude, polar-orbiting satellite using the Langmuir Probe (LP) measurement onboard the STSAT-1 spacecraft. We focused on small potential drops,
Publikováno v:
Microwave and Optical Technology Letters. 51:1994-1997
We present a method of reducing the size of antennas that is based on composite right/left-handed (CRLH) transmission lines (TL) which use a magneto-dielectric material (MDM). The CRLH-TL antenna consists of two mushroom structures, each composed of
Autor:
Young-Ho Lee, You-Hwang Lee, Kyung-Duk Jang, Chun-Deuk Park, Kwang-Jae Son, Ul-Jae Park, In-Su Han, Jun-Sig Lee
Publikováno v:
Journal of the Korean Welding and Joining Society. 27:65-70
Ir-192 radiation sealed sources are widely employed to the therapeutic applications as well as the non-destructive testing. Production of Ir-192 sources requires a delicate but robust welding technique because it is employed in a high radioactive wor
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 19:223-230
A CRLH-TL based compact metamaterial antenna on a magneto-dielectric material is proposed. The proposed antenna is composed of two patches and vias, which is loaded by a magneto-dielectric material constructed by SRRs. The characteristic of SRRs is s
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 18:866-872
In this paper, we present a frequency tunable and compact antenna which consists of a first-order Peano curve, two shorting posts, and two inductors which are serially connected between the posts and the edge of the Peano curve. By properly choosing
Autor:
Hee-Jung Im, Sung Tack Hong, Gee-Yang Han, Ke Chon Choi, Jei-Won Yeon, Hung-Woo Kim, Man-Soon Cho, Kyung-Duk Jang, Ul Jae Park, Sang-Jun Park, Hoan-Sung Jung
Publikováno v:
Asian Journal of Chemistry. 25:7013-7015
Publikováno v:
2008 IEEE Antennas and Propagation Society International Symposium.
This paper has presented a method of size reduction of the CRLH transmission line antenna by using a magneto-dielectric material. The CRLH-TL antenna is composed of two patches and vias, and the magneto-dielectric material is constructed by split rin
Autor:
Woo-Jin Byun, Kyung Duk Jang, Jae-Hee Kim, Kwang Seon Kim, Myung Sun Song, Bong Su Kim, Wee Sang Park
Publikováno v:
2007 IEEE Antennas and Propagation Society International Symposium.
Phased array system is used to scan an antenna beam to given angles in space. It consists of multiple stationary antenna elements, which are fed coherently, and uses variable phase shifter at each element. The phase shifter is one of the main parts o
Autor:
Jae Hee Kim, Kyung Duk Jang, Woo Jin Byun, Bong Su Kim, Kwang Seon Kim, Myung Sun Song, Wee Sang Park
Publikováno v:
2007 IEEE Antennas & Propagation Society International Symposium; 2007, p2654-2657, 4p