Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Jen-Chun Yeh"'
Autor:
Jen-Chun Yeh, 葉人郡
99
First, this paper presents a circularly polarized (CP) equiangular spiral antenna operated over a wide range of frequencies. Contrary to the conventional spiral antenna using the coaxial line or the vertically connected feeding structure, a t
First, this paper presents a circularly polarized (CP) equiangular spiral antenna operated over a wide range of frequencies. Contrary to the conventional spiral antenna using the coaxial line or the vertically connected feeding structure, a t
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/74sqyj
Autor:
Jen-Chun Yeh, 葉人郡
95
In this thesis, the attention is concentrated in investigation of planar circularly polarized antennas. The equiangular spiral antenna is applied in ultra wideband (UWB) systems, and analyzed in both time and frequency domain. Moreover, a nov
In this thesis, the attention is concentrated in investigation of planar circularly polarized antennas. The equiangular spiral antenna is applied in ultra wideband (UWB) systems, and analyzed in both time and frequency domain. Moreover, a nov
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/q594jx
Autor:
Jen-Chun Yeh, 葉仁君
92
The coal combustion electric power plant generates total bottom ash of half million tons annually. The chemical composition of bottom ash is mostly SiO2 and Al2O3, with Fe2O3 and alkaline oxide such as Na2O, CaO, MgO, K2O, which also makes th
The coal combustion electric power plant generates total bottom ash of half million tons annually. The chemical composition of bottom ash is mostly SiO2 and Al2O3, with Fe2O3 and alkaline oxide such as Na2O, CaO, MgO, K2O, which also makes th
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/12580386076094253417
Publikováno v:
Journal of Electromagnetic Waves and Applications. 30:175-187
This study presents the design of novel dual-fed circularly polarized (CP) antenna. This antenna consists of a tapered slot, a backside metal plate and a microstrip-fed delay line phase shifter. Based on the analysis of the radiation mechanism of ant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0de1f1fd47c255f79663b6164d68162e
https://doi.org/10.1080/09205071.2015.1098574
https://doi.org/10.1080/09205071.2015.1098574
Publikováno v:
IEEE Transactions on Antennas and Propagation. 57:1914-1920
The design of a wideband circularly polarized (CP) equiangular spiral antenna is described. Contrary to the conventional spiral antenna using the coaxial line or the vertically connected feeding structure, a tapered microstrip balun is fully integrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37d8063d6faa32793fd9fd0cbd4a8df7
https://doi.org/10.1109/tap.2009.2021883
https://doi.org/10.1109/tap.2009.2021883
Publikováno v:
Progress In Electromagnetics Research B. 13:433-451
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1e2aa2e300cc1a59807b2dafd1dc7c5
https://doi.org/10.2528/pierb09021302
https://doi.org/10.2528/pierb09021302
Publikováno v:
Microwave and Optical Technology Letters. 49:1044-1047
A uniplanar printed antenna consisting of the series-fed dipole elements and the conductor-backed coplanar waveguide-to-coplanar stripline (CBCPW-to-CPS) transition with broad impedance bandwidth and end-fire radiation is presented. The measured resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bc469de90efb8600ec17b2d6c790188
https://doi.org/10.1002/mop.22331
https://doi.org/10.1002/mop.22331
Publikováno v:
IEEE Microwave and Wireless Components Letters. 19:683-685
This letter presents a novel microstrip branch-line coupler operating in three frequency bands. The design methodology of the triple-band branch-line coupler is established by using a compensation technique to improve the matching property within eac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4f2b7ce05a4d8f3087aee3128255209
https://doi.org/10.1109/lmwc.2009.2031998
https://doi.org/10.1109/lmwc.2009.2031998
Broadband and strong coupling metamaterial-based cavity resonator using artificial magnetic surfaces
Publikováno v:
2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications.
This study proposes a novel metamaterial-based cavity with a strong coupling effect between the transmitting and receiving devices. It is compact in size and the field distribution is uniform inside the cavity, which is realized by combining four art
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c725d97b178c4acc07a0879a6891b91a
https://doi.org/10.1109/imws.2011.5877104
https://doi.org/10.1109/imws.2011.5877104
Publikováno v:
2010 IEEE Antennas and Propagation Society International Symposium.
Metamaterials have attracted considerable interest among scientists and engineers owing to their interesting electromagnetic properties not observed in naturally occurring materials [1]. As a kind of metamaterial, the artificial magnetic conductor (A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d4b9bc7611be3f403ff45357a919f90
https://doi.org/10.1109/aps.2010.5562136
https://doi.org/10.1109/aps.2010.5562136