Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Geonho Jang"'
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 26:966-977
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::722ba55f50a8764fdcb2456ac076a38d
https://doi.org/10.5515/kjkiees.2015.26.11.966
https://doi.org/10.5515/kjkiees.2015.26.11.966
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:965-975
This paper presents a novel quadruple-mode coaxial cavity resonator and its application to bandpass filters with compact size and improved quality factor ( $Q$ -factor). Unlike the conventional coaxial cavity resonator, the proposed resonator is made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5f210b376a3aa9e85e603d2a96a1052
https://doi.org/10.1109/tmtt.2015.2389231
https://doi.org/10.1109/tmtt.2015.2389231
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 26:30-38
In this paper, the design of a compact triple-mode bandpass filter using a high-Q cylindrical dielectric resonator is proposed. In detail, the triple TE 01δ modes along three orthogonal axes are used and novel coupling structure in the metallic encl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c3e08904727718fe89ce9dfe0ab3384
https://doi.org/10.5515/kjkiees.2015.26.1.30
https://doi.org/10.5515/kjkiees.2015.26.1.30
Autor:
Jeonghee Won, Nam-Shin Park, Byung-Chul Kim, Sang-Won Yun, In-Ho Na, Xu-Guang Wang, Jae-Yoon Myung, Don-Yong Lee, Geonho Jang
Publikováno v:
Journal of electromagnetic engineering and science. 14:9-14
This paper discusses the resonant characteristics, such as the resonant frequencies and Q factors, as well as tuning methods of the resonant frequency of the triple-mode dielectric resonators, for their possible application to compact bandpass filter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::996c138783d6212477bdce82e5d8f647
https://doi.org/10.5515/jkiees.2014.14.1.9
https://doi.org/10.5515/jkiees.2014.14.1.9
Autor:
Sungtek Kahng, Geonho Jang
Publikováno v:
Journal of electromagnetic engineering and science. 13:263-266
A novel compact and low-loss VHF bandpass filter is presented with enhanced stopband performance using metamaterial zeroth order resonator (ZOR) characteristics. An in-line ZOR filter is initially suggested and changed to have transmission zeros (TZs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af063b86bc686917e8cfb55e7b9f1be8
https://doi.org/10.5515/jkiees.2013.13.4.263
https://doi.org/10.5515/jkiees.2013.13.4.263
Autor:
Geonho Jang, Sungtek Kahng
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 21:893-899
In this paper, the design of a new bandpass filter based on the modified circular mushroom metamaterial structure is proposed. In detail, half circular mushroom cells are used as the zeroth order resonators(ZOR), and an intermediate gap is adopted to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bdc19ac748f40fd897bf5898bae444a
https://doi.org/10.5515/kjkiees.2010.21.8.893
https://doi.org/10.5515/kjkiees.2010.21.8.893
Autor:
Sungtek Kahng, Geonho Jang
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 21:143-151
In this paper, a novel rectangular patch antenna is proposed to have Zeroth Order Resonance(ZOR) generated based on the Metamaterial Complosite Right- and Left-Handed(CRLH) structure. Making the in-phase electric field over the entire antenna other t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a2113c62b4b2a6ea334840d95c3b87d
https://doi.org/10.5515/kjkiees.2010.21.2.143
https://doi.org/10.5515/kjkiees.2010.21.2.143
Autor:
Sungtek Kahng, Geonho Jang
Publikováno v:
Microwave and Optical Technology Letters. 55:403-405
We propose a novel compact bandpass filter having a mushroom with interlocked gap coupling on FR4 as a composite right- and left-handed structure. The physical size reduction is made possible by the zeroth-order resonance of the geometry. The stopban
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f32df3ee24fc1434adf5595829235ffa
https://doi.org/10.1002/mop.27326
https://doi.org/10.1002/mop.27326
Publikováno v:
2012 Asia Pacific Microwave Conference Proceedings.
In this paper, a miniatuirized duplexer for the lower-half UWB is implemented. Firstly, to reduce the size, novel metamaterial CRLH bandpass filter structures are designed for the duplexer of the 2 channels (3.2GHz ∼ 3.7GHz and 4.3GHz ∼ 4.7GHz).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d8d48ddd7fe93e2210a60205d984498
https://doi.org/10.1109/apmc.2012.6421561
https://doi.org/10.1109/apmc.2012.6421561
Publikováno v:
2012 IEEE Asia-Pacific Conference on Antennas and Propagation.
The Ultra-Wide Band(UWB) telecommunication needs to avoid the collision with other service bands and off-limit frequencies. UWB Antennas have been introduced to notches generated by U-slits on the main radiators. To overcome the shortcomings of the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::751cefb8ad37ae0a3a3a1650fb1a0347
https://doi.org/10.1109/apcap.2012.6333176
https://doi.org/10.1109/apcap.2012.6333176