Zobrazeno 1 - 10
of 11
pro vyhledávání: '"David Delaune"'
Publikováno v:
IEICE Transactions on Communications. :2531-2537
Recently, microwave ultra-wideband (UWB) technology has attracted much attention in high speed wireless communications, imaging and radar applications. Antennas with very wide impedance bandwidth and stable radiations are required for such systems. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0363c476fcf74697cee89741d4acb3d
https://doi.org/10.1587/transcom.e93.b.2531
https://doi.org/10.1587/transcom.e93.b.2531
Publikováno v:
IEICE Transactions on Communications. :1372-1381
SUMMARY The Japan Aerospace Exploration Agency (JAXA) plans to launch a geostationary satellite called Engineering Test Satellite VIII (ETS-VIII) in FY 2006. In this paper, a microstrip line array antenna, which has a very simple structure, is introd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3819317f950703810b5a897562f00ff
https://doi.org/10.1093/ietcom/e89-b.4.1372
https://doi.org/10.1093/ietcom/e89-b.4.1372
Autor:
Toshimitsu Tanaka, David Delaune, Josaphat Tetuko Sri Sumantyo, Koichi Ito, Teruo Onishi, Hiroyuki Yoshimura
Publikováno v:
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. 18:95-106
In this research, a patch array antenna for mobile satellite communications aiming at ETS-VIII applications has been developed. The ground plane size effects on the antenna characteristics were investigated. Finite and infinite ground planes were ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bc1941a9a4e02bdb854afc69c65f965
https://doi.org/10.1002/jnm.563
https://doi.org/10.1002/jnm.563
Publikováno v:
2009 IEEE International Workshop on Antenna Technology.
A film-antenna capable of generating two wide resonant modes for covering the AMPS/GSM bands and the DCS/PCS/ UMTS bands for mobile phones is proposed. The antenna consists of two superimposed radiating arms which can support two resonant modes by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e4e16a2ee34a312418336e796c01e7
https://doi.org/10.1109/iwat.2009.4906976
https://doi.org/10.1109/iwat.2009.4906976
Publikováno v:
2008 IEEE Antennas and Propagation Society International Symposium.
In this paper, we propose a novel wire type antenna for GSM/DCS/PCS/UMTS operation. The antenna is constructed by a folded wire with a short-pin section. Meander lines are applied not only for the miniaturization purpose of the antenna but also for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::326e6e7ccbd3aec7ae0d8df5b597d80b
https://doi.org/10.1109/aps.2008.4620066
https://doi.org/10.1109/aps.2008.4620066
Publikováno v:
2008 International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials.
A printed monopole antenna for quad-band operation in the mobile phone has been proposed and studied. The antenna occupies a volume of 24.3 x 20 x 4 mm3 with a very low height as compared to others, yet it can cover two wide bands centred at about 92
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::378d4e9adc5b3acc5919084daae2f535
https://doi.org/10.1109/iwat.2008.4511356
https://doi.org/10.1109/iwat.2008.4511356
Publikováno v:
2007 IEEE Antennas and Propagation Society International Symposium.
In this paper, we clarify the dependence of the antenna performance on frequency and the antenna geometry for transparent monopole antennas. Radiation efficiency is numerically investigated for antennas with different geometries by use of the moment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5c80ad214755fa3f26788b2dc70a4e6
https://doi.org/10.1109/aps.2007.4395470
https://doi.org/10.1109/aps.2007.4395470
Publikováno v:
IEEE Antennas and Propagation Society Symposium, 2004..
The Japan Aerospace Exploration Agency (JAXA) will launch a geostationary satellite called Engineering Test Satellite-VIII (ETS-VIII) in 2005. ETS-VIII will conduct orbital experiments on mobile satellite communications at the S-band frequency, espec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fabc87fccc5797e1c3dea72837dc841e
https://doi.org/10.1109/aps.2004.1331881
https://doi.org/10.1109/aps.2004.1331881
Publikováno v:
33rd European Microwave Conference, 2003.
In this paper, two simple electronically-steered on-board satellite-tracking circularly polarized stack-type dual-band patch array antennas for mobile satellite communications are numerically investigated. The configurations of the novel antennas are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b4c3e54738c265900b59d3b8e985859
https://doi.org/10.1109/euma.2003.341004
https://doi.org/10.1109/euma.2003.341004
Publikováno v:
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).
Two types of array antennas operating at the 2.6 GHz-band, which can be used for the MSB (mobile satellite broadcasting), are presented. Both are formed of square patches with truncated comers and generate circular polarization. After finding the val
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::216e5ca957c7dc995c9e87cca63eb238
https://doi.org/10.1109/aps.2002.1017087
https://doi.org/10.1109/aps.2002.1017087