Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Sompol Kosulvit"'
Autor:
Bancha Luadang, Rerkchai Pukraksa, Pisit Janpangngern, Khanet Pookkapund, Sitthichai Dentri, Sompol Kosulvit, Chuwong Phongcharoenpanich
Publikováno v:
Sensors, Vol 22, Iss 14, p 5338 (2022)
This research proposed a portable wideband horizontally-polarized directional antenna scheme with a radome for digital terrestrial television reception. The operating frequency band of the proposed antenna scheme is 470–890 MHz. The portable antenn
Externí odkaz:
https://doaj.org/article/f0e3ebd083884afd9600eaee3abc74ea
Autor:
Souphanna Vongsack, Chuwong Phongcharoenpanich, Sompol Kosulvit, Kazuhiko Hamamoto, Toshio Wakabayashi
Publikováno v:
International Journal of Antennas and Propagation, Vol 2014 (2014)
This research presents a rectangular ring antenna excited by a circular disc monopole (CDM) mounted in front of a square reflector. The proposed antenna is designed to cover a frequency range of 2.300–5.825 GHz and thereby is suitable for WiMAX app
Externí odkaz:
https://doaj.org/article/5b80b918d2544588ba69e95b23b405d9
Publikováno v:
2017 International Symposium on Antennas and Propagation (ISAP).
In this paper, a circular ring is used to excite exponential horn antenna presented for bridging outdoor wireless LAN applications. The advantage of this structure does not require a waveguide feeding system. The purpose of this antenna design is to
Autor:
Kazuhiko Hamamoto, Sompol Kosulvit, Toshio Wakabayashi, Souphanna Vongsack, Chuwong Phongcharoenpanich
Publikováno v:
Progress In Electromagnetics Research. 133:159-176
This paper presents a circular ring antenna fed by two perpendicular probes, both of which are placed above the square re∞ector. The antenna is employed to radiate unidirectional beam for polarization diversity reception. A linear isolator is added
Publikováno v:
Theory and Applications of Applied Electromagnetics ISBN: 9783319301167
This paper presents the UHF-RFID tag antenna applied on a human body (wrist). The proposed tag antenna was fabricated on a thin FR4 substrate (e r = 4.3) with the thickness of 0.25 mm. The T-matching and double-ended rectangular loop techniques are p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea60b2020e07b972cc82eba80c404605
https://doi.org/10.1007/978-3-319-30117-4_9
https://doi.org/10.1007/978-3-319-30117-4_9
Autor:
Pracha Osklang, Kazuhiko Hamamoto, Sompol Kosulvit, Souphanna Vongsack, Suthasinee Lamultree, Chuwong Phongcharoenpanich, T. Wakabayashi
Publikováno v:
International Journal of Microwave Science and Technology. 2012:1-12
This paper presents an ultra-wideband (UWB) rectangular ring antenna excited by a circular disc monopole (CDM) with a conducting rod and two double ridges to radiate bidirectional pattern with constant beam direction along the entire UWB frequency ra
Autor:
Sompol Kosulvit, Chuwong Phongcharoenpanich, Jun-ichi Takada, Monai Krairiksh, Panisa Keowsawat
Publikováno v:
Journal of Electromagnetic Waves and Applications. 23:1221-1233
Double directional channel measurements were made in a corridor environment with a channel sounder. A multidimensional high resolution algorithm was used to extract channel parameters for calculating the mutual information of a special Multiple-Input
Publikováno v:
Progress In Electromagnetics Research B. 11:79-101
Radiation characteristics of a probe-excited rectangular ring antenna are investigated by using the dyadic Green's function approach. The radiation characteristics, such as radiation pattern, beam-peak direction, half-power beamwidth and directivity,
Publikováno v:
Progress In Electromagnetics Research. 97:417-431
This paper presents the analysis and design of a two-probe excited circular ring antenna. The analysis is conducted by using induced emf method and transmission line model. The design process is to choose a suitable radius of the ring for a single pr
Publikováno v:
International Journal of Electronics. 94:973-984
This paper presents the characteristics of an elliptical ring antenna excited by a linear electric probe. Based on the waveguide principle, the suitable cross-sectional dimension of the ring that yields the dominant mode (TEC11 mode) will be formulat