Zobrazeno 1 - 10
of 65
pro vyhledávání: '"A.G. Roederer"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 50:511-516
Measuring radiation patterns in the time domain provides the antenna characteristics over a wide-frequency spectrum in a single measurement. Such an advantage over traditional measurements in the frequency domain makes the practical implementation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0cdfe7e0aa444701bf48990d91ab357
https://doi.org/10.1109/tap.2002.1003387
https://doi.org/10.1109/tap.2002.1003387
Publikováno v:
IEEE Antennas and Propagation Magazine. 38:9-21
The environment, as well as the mass and available power limitations specific to space missions, add special constraints. These lead to the use of exotic low-mass, high-stability materials, with advanced mechanical and thermal designs. Also, antenna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43868013c987f322f1a604b197b87095
https://doi.org/10.1109/74.500228
https://doi.org/10.1109/74.500228
Publikováno v:
IEEE Transactions on Antennas and Propagation. 43:390-395
An alternative approach for the design of angular bandpass filters composed of metal strip gratings is proposed. In the classic approach, frequency selective surfaces (gratings) are used as resonant elements and the spacing between them is adjusted t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d28ac22c2e292146f8c5b0ce6309571d
https://doi.org/10.1109/8.376037
https://doi.org/10.1109/8.376037
Autor:
A.G. Roederer, P.L. Garcia-Muller
Publikováno v:
IEEE Transactions on Antennas and Propagation. 40:906-911
An efficient physical optics based method of analysis of antennas over finite ground planes is presented. The far field radiated by the current on the finite ground plane is expressed as the convolution integral of the far field of the antenna above
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84cb5e57d2883ef99b51b7027d9c3575
https://doi.org/10.1109/8.163427
https://doi.org/10.1109/8.163427
Autor:
A.G. Roederer
Publikováno v:
IEEE Transactions on Antennas and Propagation. 38:704-710
A low-profile circularly polarized medium gain antenna is presented. This traveling-wave antenna consists of a conducting wire or strip placed above a ground plane and following the contour of a cross with four or more branches and a diameter of arou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82ed95cd1d9673f206412d94c4582378
https://doi.org/10.1109/8.53498
https://doi.org/10.1109/8.53498
Publikováno v:
RUC. Repositorio da Universidade da Coruña
instname
instname
[Abstract] The design of a number of new antennas that radiate linearly polarized toroidal beams is described. The developed procedures are based on the use of a method of moments commercial software tool. Several numerical examples, working at WLAN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93295b589a0cf75882904caf6f47bbd7
http://hdl.handle.net/2183/17269
http://hdl.handle.net/2183/17269
Publikováno v:
Scopus-Elsevier
Some new antennas that radiate linearly polarized toroidal beams are presented. Two prototypes have been constructed. Their design procedure is based on the use of a method of moments commercial software tool. Very accurate toroidal beams are obtaine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9da0a62d4305d4c5e929a1c97a26b060
https://doi.org/10.1109/eucap.2006.4584558
https://doi.org/10.1109/eucap.2006.4584558
Publikováno v:
2006 First European Conference on Antennas and Propagation.
Current Ka-band multibeam satellite antenna systems often use one feed per beam, but involve a high number of reflector antennas (four for transmit and four for receive) to realise both acceptable crossover levels and spillover losses (Rao, 1999). Se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7620a846ee08ad92af93e8d2dbf73f9d
https://doi.org/10.1109/eucap.2006.4584485
https://doi.org/10.1109/eucap.2006.4584485
Autor:
A.G. Roederer
Publikováno v:
2005 18th International Conference on Applied Electromagnetics and Communications.
This paper reviews some of the requirements and proposed solutions for present and future space missions. Mobile telecommunications at L and S bands require very large apertures and digital beam formers to generate multiple beams. New approaches are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b71f693f3c34938cea687750dc5f0e8a
https://doi.org/10.1109/icecom.2005.204908
https://doi.org/10.1109/icecom.2005.204908
Publikováno v:
RUC. Repositorio da Universidade da Coruña
instname
instname
This paper is a postprint of a paper submitted to and accepted for publication in journal Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library" [Abstract] We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c52c6351dc9f13e72bc6987006b6a66
http://hdl.handle.net/2183/17251
http://hdl.handle.net/2183/17251