Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Choke ring antenna"'
Autor:
Łukasz Rykała, Arkadiusz Rubiec, Mirosław Przybysz, Piotr Krogul, Karol Cieślik, Tomasz Muszyński, Magdalena Rykała
Publikováno v:
Applied Sciences, Vol 13, Iss 2, p 1007 (2023)
One of the technologies used for localization is GNSS (Global Navigation Satellite Systems), which is exposed to many phenomena, i.e., the occurrence of terrain covers, reflections of the radio waves, and the multipath nature of the radio waves in th
Externí odkaz:
https://doaj.org/article/edb016a63959447cbd1866f1cc7d4916
Akademický článek
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Autor:
Kyoung-Min Roh, Yoola Hwang
Publikováno v:
International Journal of Aerospace Engineering, Vol 2020 (2020)
The Korean Multipurpose Satellite-5 (KOMPSAT-5) launched on 22 August 2013 was equipped with a global positioning system (GPS) receiver for precision orbit determination (POD). Even though the GPS receiver of KOMPSAT-5 shares the same heritage as the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28c6fd45a182260c476965f9db107d1a
https://doi.org/10.1155/2020/7358286
https://doi.org/10.1155/2020/7358286
Publikováno v:
IEEE Aerospace and Electronic Systems Magazine. 33:34-39
Low Earth orbit (LEO) satellites operating below 1,400 km are currently in use for various applications, ranging from remote sensing and weather forecast to voice and data communications and scientific research. Because of their shorter distance to E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36b8f692d6a66db195f9fc7e1e56720f
https://doi.org/10.1109/maes.2018.160160
https://doi.org/10.1109/maes.2018.160160
Publikováno v:
Advances in Space Research. 60:2672-2679
This article is dedicated to the developments of the new-generation of BDS satellites and the mitigation of the satellite-induced code multipath error. Basic signal parameters of three new-generation BDS IOV satellites were introduced. A monitoring r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2025bbfdf03218e6acfde4c73c1f90e4
https://doi.org/10.1016/j.asr.2017.05.022
https://doi.org/10.1016/j.asr.2017.05.022
Publikováno v:
IEEE Transactions on Antennas and Propagation. 65:6856-6863
A composite right/left-handed (CRLH) transmission line (TL) is proposed for a choke structure. The dispersion relation of the CRLH TL is designed with the left-handed (LH) branch at around 700 MHz. The proposed CRLH TL is applied to the choke structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa667b5838760dfbc03a4387b37ad69e
https://doi.org/10.1109/tap.2017.2758399
https://doi.org/10.1109/tap.2017.2758399
Publikováno v:
Radioengineering, Vol 26, Iss 1, Pp 107-113 (2017)
Radioengineering. 2017 vol. 26, č. 1, s. 107-113. ISSN 1210-2512
Radioengineering. 2017 vol. 26, č. 1, s. 107-113. ISSN 1210-2512
This paper presents two microstrip antenna arrays for horizontally polarized (HP) omnidirectional application, namely rectangular patch antenna array and H-shaped patch antenna array. There are eight patch elements placed with back-to-back structure,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a99d5061486f6cc11095273ed01210f8
http://www.radioeng.cz/fulltexts/2017/17_01_0107_0113.pdf
http://www.radioeng.cz/fulltexts/2017/17_01_0107_0113.pdf
Autor:
Т. А. Tsaliev, K. V. Kutsuk
Publikováno v:
Telecommunications and Radio Engineering. 76:127-133
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d319eb73ac68346232cbacaf516d0993
https://doi.org/10.1615/telecomradeng.v76.i2.30
https://doi.org/10.1615/telecomradeng.v76.i2.30
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 16:2465-2468
This letter presents a miniaturized geodetic choke ring antenna for high-precision Global Navigation Satellite System applications. The antenna consists of crossed dipoles that are fed by two coaxial feedlines, a resonant ring over the dipoles, a cav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e5601d876ea3f3a95f89ff99e5467f6
https://doi.org/10.1109/lawp.2017.2724302
https://doi.org/10.1109/lawp.2017.2724302
Autor:
Jefferson A. Harrell, Nacer Chahat, Stanley A. Butman, Polly Estabrook, Luis R. Amaro, Charles C. Wang
Publikováno v:
IEEE Transactions on Antennas and Propagation. 64:2075-2082
A low-gain antenna (LGA) is designed for high cross-polarization discrimination (XPD) and low backward radiation within the 8.025–8.4-GHz frequency band to mitigate cross-polarization and multipath interference given the spacecraft layout constrain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a41f783fe5b3b34651e52ce5412cb51
https://doi.org/10.1109/tap.2016.2546298
https://doi.org/10.1109/tap.2016.2546298