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Akademický článek
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The quest for wide band operation of antenna arrays, for example reaching 10 to 1 or more, has led to the consideration of many different types of elements. Spirals and other wide band elements have been tried as one alternative, but this leads to la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4032d0d8ff771485a98ac92c14d24158
https://zenodo.org/record/1264732
https://zenodo.org/record/1264732
Publikováno v:
Applied optics. 21(15)
This paper presents measured data on mid-infrared filters using conducting elements based on a simple first-order design philosophy. To the best of our knowledge, the filter center frequencies are at least a factor of 10 higher than any previously re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75baad60648f1e799455e030b1241a32
https://pubmed.ncbi.nlm.nih.gov/20396123
https://pubmed.ncbi.nlm.nih.gov/20396123
Autor:
B.A. Munk
Publikováno v:
2007 International Conference on Electromagnetics in Advanced Applications.
In this paper we first list some of the features that are widely accepted as being facts regarding materials with simultaneously negative mu and epsiv, namely: (a) negative index of refraction; (b) advance of the phase of a signal as it moves away fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d8e0ba2cfdcea19fb3664d2aca89df9
https://doi.org/10.1109/iceaa.2007.4387299
https://doi.org/10.1109/iceaa.2007.4387299
Publikováno v:
2006 IEEE Antennas and Propagation Society International Symposium.
In this paper, an array of closely spaced slot elements has been designed to provide good wide angle scan performance with large bandwidth. The results are stable for a wide range of scan angles and frequencies. The calculated return loss for the des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce61fbae7c5947ad419aa3e8e9cfccd
https://doi.org/10.1109/aps.2006.1711246
https://doi.org/10.1109/aps.2006.1711246
Publikováno v:
1980 Antennas and Propagation Society International Symposium.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb9cbfce373a0c810047ca9f5412614b
https://doi.org/10.1109/aps.1980.1148357
https://doi.org/10.1109/aps.1980.1148357
Publikováno v:
1985 Antennas and Propagation Society International Symposium.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11c38a63519e6c47af46c3677a096b49
https://doi.org/10.1109/aps.1985.1149551
https://doi.org/10.1109/aps.1985.1149551
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).
Periodic structures can be of the passive type excited by an incident plane wave or they can be of the active type where each element is driven by individual generators. The first type may be used as a frequency selective surface, the second as a pha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a95385b76218fa8773c7a8cfc044a6b4
https://doi.org/10.1109/aps.2003.1220341
https://doi.org/10.1109/aps.2003.1220341
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. Digest. Held in conjunction with: USNC/CNC/URSI North American Radio Sci. Meeting (Cat. No.03CH37450).
It is customary to approximate finite periodic structures by considering infinite surfaces. While this approach works under many circumstances, there are cases where strong surface waves are excited that cannot be accounted for by the infinite array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::889ae359a005d17c8a82928646b77fed
https://doi.org/10.1109/aps.2003.1220112
https://doi.org/10.1109/aps.2003.1220112