Design of Advanced Reflectarrays and Their Application in Future Antenna Systems

Autor: Niels Vesterdal, Tonny Rubak, Michael Forum Palvig, Stig B. Sorensen, Jakob Rosenkrantz de Lasson, Min Zhou, Oscar Borries, Andreas Ericsson, Peter Meincke, Erik Jorgensen

Publikováno v: 2019 8th Asia-Pacific Conference on Antennas and Propagation (APCAP).

In recent years, there have been significant interest in reflectarray antennas and the latest research have shown that reflectarrays can be used to provide solutions which are otherwise not possible using existing solutions. In this paper, we present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91fd2791badef5795f1d23c2e115febc
https://doi.org/10.1109/apcap47827.2019.9472015

Direct Optimization of Quasi-Periodic Surfaces in Multi-Reflector Systems

Autor: Min Zhou, Erik Jorgensen, Oscar Borries, Michael Forum Palvig, Niels Vesterdal

Publikováno v: 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.

In recent years, there has been an increasing interest in replacing traditional periodic surfaces, e.g., frequency selective surfaces, with quasi-periodic surfaces (non-identical elements) in multi-reflector systems for satellite applications. Quasi-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92476375aaaa92c5789464fce7746e36
https://doi.org/10.1109/apusncursinrsm.2018.8609233

Design of aperiodic frequency selective surfaces for compact quasi-optical networks

Autor: M. Henry, Robert Cahill, Giovanni Toso, Min Zhou, Raymond Dickie, Peter G. Huggard, Stig B. Sorensen, J.H. Montgomery, Paul Baine, Niels Vesterdal

Publikováno v: Zhou, M, Sorensen, S B, Vesterdal, N, Dickie, R, Baine, P, Montgomery, J, Cahill, R, Henry, M, Huggard, P G & Toso, G 2017, Design of Aperiodic Frequency Selective Surfaces for Compact Quasi-Optical Networks . in Proceedings of the 11th European Conference on Antennas and Propagation (EUCAP), 2017 . Institute of Electrical and Electronics Engineers Inc., pp. 1274-1278, 11th European Conference on Antennas and Propagation, Paris, France, 19/03/2017 . https://doi.org/10.23919/EuCAP.2017.7928454

The design of an aperiodic frequency selective surface (FSS) for compact quasi-optical networks is presented in this paper. Using a newly developed Physical Optics (PO) method in conjunction with a direct optimisation approach where all elements are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acc79f688e5f2fadf207d494de6958ef
https://doi.org/10.23919/eucap.2017.7928454

New analysis capabilities for electrically large antennas and platforms

Autor: Oscar Borries, Niels Vesterdal, Min Zhou, Peter Meincke, Erik Jorgensen

Publikováno v: 2016 10th European Conference on Antennas and Propagation (EuCAP).

We present recent advances in the RF modeling of electrically large antennas and platforms, with an emphasis on reflector antennas and satellite platforms. The Higher-Order Multilevel Fast Multipole Method (HO MLFMM) was introduced recently in the co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::250895c0aee0b55ef7652a21ca980da4
https://doi.org/10.1109/eucap.2016.7481482

A spherical wave expansion model of sequentially rotated phased arrays with arbitrary elements

Autor: Niels Vesterdal Larsen, Olav Breinbjerg

Publikováno v: Microwave and Optical Technology Letters. 49:3148-3154

An analytical model of sequentially rotated phased arrays with arbitrary antenna elements is presented. It is applied to different arrays and the improvements of axial ratio bandwidth and copolar directivity are investigated. It is compared to a nume

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d18024a54d0cdd3cc6f962ce63e536f7
https://doi.org/10.1002/mop.22905