Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Oscar Borries"'
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).
Publikováno v:
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI).
Autor:
Oscar Borries, Martin Haulund Gaede, Peter Meincke, Andreas Ericsson, Erik Jorgensen, Dennis Schobert, Erio Gandini
Publikováno v:
2021 Antenna Measurement Techniques Association Symposium (AMTA).
Publikováno v:
2020 14th European Conference on Antennas and Propagation (EuCAP).
A typical 3U and 6U CubeSat hosting antennas ranging from the low UHF to the higher Ka band are modelled in the ESTEAM software package. The antennas are inspired by recent designs published in the literature. RF performances of the antennas installe
Publikováno v:
2019 IEEE Indian Conference on Antennas and Propogation (InCAP).
A W-band reflector antenna mounted in a 6-unit CubeSat is analysed. The analyses show that the effects of the CubeSat structure on the performance of the antenna are significant, both on the peak gain and side-lobe levels while the impact on XPD perf
Publikováno v:
2019 IEEE Indian Conference on Antennas and Propogation (InCAP).
Key aspects of optimization algorithms when applied to challenging antenna design problems are reviewed. As an example of such an algorithm, the Multi-level Coordinate Search (MCS) global optimization algorithm is highlighted as a good candidate algo
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
Publikováno v:
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting.
We present a 10 cm offset reflector antenna mounted inside a 6U CubeSat platform and analyze the bare reflector and three reflector + CubeSat platform configurations in W band (86 GHz), where the CubeSat platform is electrically large. Using higher-o
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-
Publikováno v:
Eltved, A, Andersen, M S & Borries, O 2018, Improved Shaping of Reflector Antennas using a New Minimax Initialization Strategy . in Proceedings of 2018 International Applied Computational Electromagnetics Society Symposium . IEEE, 2018 International Applied Computational Electromagnetics Society Symposium, Denver, Colorado, United States, 25/03/2018 . https://doi.org/10.23919/ROPACES.2018.8364326
Numerical optimization is an essential part of the design process when shaping a contoured beam reflector antenna to produce a required coverage. The minimax formulation that has been used for decades generally results in a nonconvex problem, and sin