Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Seunggoo Nam"'
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 5, Pp 524-529 (2024)
In this research, we present an innovative method for estimating the beams of array antennas. Traditional beam analysis methods rely on placing receiving antennas in the far-field region, which requires moving or rotating the Tx or Rx, and using radi
Externí odkaz:
https://doaj.org/article/1dfa251e3f3f46309eb5d8dfa215ef27
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 4, Pp 452-458 (2022)
This paper introduces a miniaturized Butler matrix design method using a folded structure. The Butler matrix was fabricated in multi-layers using low-temperature co-fired ceramics (LTCC) and designed to operate at 28 GHz. The conventional one-plane B
Externí odkaz:
https://doaj.org/article/7f38fd57fc5d46bb8899deb06ea3b5a3
Publikováno v:
IEEE Access, Vol 8, Pp 101528-101538 (2020)
This paper presents a practical method for implementing a post-loaded substrate-integrated waveguide (SIW) filter producing an asymmetric response with a pair of near-band transmission zeros. More specifically, we present a practical frequency-depend
Externí odkaz:
https://doaj.org/article/f926ff2072e24509a9bc568b88c5fab5
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:4658-4666
This work presents a new negative interresonator coupling structure that can be applied to circular waveguide resonators, such as substrate-integrated waveguide (SIW) resonators and metallic cavity resonators utilizing the TM011 mode. The negative co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2257f898d449b178345f28e179986235
https://doi.org/10.1109/tmtt.2021.3105676
https://doi.org/10.1109/tmtt.2021.3105676
Autor:
Seunggoo Nam, Sehwan Choi
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c35369b5bcbc30aba83ba164ebe90940
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886156
https://doi.org/10.1109/ap-s/usnc-ursi47032.2022.9886156
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:2300-2307
In this article, we present a novel generic reflectionless filter topology that can produce an arbitrary predefined transmission response while having the perfect impedance matching at both ports. A detailed procedure for synthesizing reflectionless
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a9077c58fd494b51681355a24371b92
https://doi.org/10.1109/tmtt.2020.2976967
https://doi.org/10.1109/tmtt.2020.2976967
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:2684-2692
In this paper, we present a new filtering power divider structure that has a reflectionless response at the two output ports and excellent isolation performance between the two output ports. Hence, the presented filtering power divider can be employe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::481e58634c71db170733587824721edf
https://doi.org/10.1109/tmtt.2019.2913650
https://doi.org/10.1109/tmtt.2019.2913650
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 66:2496-2507
In this paper, we present completely analytic design equations for a narrowband filtering power divider with an excellent isolation performance over a wide frequency range. For providing the complete design equations, the even–odd mode analysis on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ddeebcd253dd0c400ddcc15c8276017
https://doi.org/10.1109/tcsi.2019.2898465
https://doi.org/10.1109/tcsi.2019.2898465
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:1496-1503
This paper presents a new bandwidth tuning theory for Butterworth-response resonator filters. The presented theory shows that the bandwidth of odd-order Butterworth filters can be varied by adjusting only two interresonator coupling structures while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b3f5576f4ce3c085984628f37cb4a1
https://doi.org/10.1109/tmtt.2019.2898860
https://doi.org/10.1109/tmtt.2019.2898860
Publikováno v:
ICEIC
In this paper, we present a new K-band frequency tunable constant-bandwidth filter with no tunable coupling structures. For the purpose of designing such filter, we have developed novel static coupling structures for TM 011 mode cylindrical cavity re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9388db68cab73b889999177b5820337
https://doi.org/10.1109/iceic51217.2021.9369810
https://doi.org/10.1109/iceic51217.2021.9369810