Kai Siwiak - Academia.edu (original) (raw)
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Universidade Federal de Santa Catarina - UFSC (Federal University of Santa Catarina)
CSIC (Consejo Superior de Investigaciones CientÃficas-Spanish National Research Council)
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Papers by Kai Siwiak
IEEE Transactions on Antennas and Propagation, 1979
Radome induced boresight errors are defined in terms of antenna difference port to sum port volta... more Radome induced boresight errors are defined in terms of antenna difference port to sum port voltage ratios. The antenna port voltages are derived using the reaction integral for the case of a planar waveguide slot array in the presence of a dielectric radome. Radome transmission uses planar slab results. Both the antenna reflection and the radome shadow contribution are taken
... Thomas Gigl, Florian Troesch, J Preishuber-Pfluegl, Klaus Witrisal in Positioning Navigation ... more ... Thomas Gigl, Florian Troesch, J Preishuber-Pfluegl, Klaus Witrisal in Positioning Navigation and Communication WPNC 2010 7th Workshop ... 1IEEE 802.15.4a channel model - final report Andreas F. Molisch, Kannan Balakrishnan, Dajana Cassioli, Chia-Chin Chong, Shahriar ...
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
This paper describes a comprehensive statistical model for UWB propagation channels that is valid... more This paper describes a comprehensive statistical model for UWB propagation channels that is valid for a frequency range from 3-10 GHz. It is based on measurements and simulations in the following environments: residential indoor, office indoor, built-up outdoor, industrial indoor, farm environments, and body area networks. The model is independent of the used antennas. It includes the frequency dependence of the pathloss, as well as several generalizations of the Saleh-Valenzuela model, like mixed Poisson times of arrival and delay dependent cluster decay constants. The model can thus be used for realistic performance assessment of UWB systems. It was accepted by the IEEE 802.15.4a working group (WG) as standard model for evaluation of UWB system proposals.
IEEE Transactions on Antennas and Propagation, 1979
Radome induced boresight errors are defined in terms of antenna difference port to sum port volta... more Radome induced boresight errors are defined in terms of antenna difference port to sum port voltage ratios. The antenna port voltages are derived using the reaction integral for the case of a planar waveguide slot array in the presence of a dielectric radome. Radome transmission uses planar slab results. Both the antenna reflection and the radome shadow contribution are taken
... Thomas Gigl, Florian Troesch, J Preishuber-Pfluegl, Klaus Witrisal in Positioning Navigation ... more ... Thomas Gigl, Florian Troesch, J Preishuber-Pfluegl, Klaus Witrisal in Positioning Navigation and Communication WPNC 2010 7th Workshop ... 1IEEE 802.15.4a channel model - final report Andreas F. Molisch, Kannan Balakrishnan, Dajana Cassioli, Chia-Chin Chong, Shahriar ...
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
This paper describes a comprehensive statistical model for UWB propagation channels that is valid... more This paper describes a comprehensive statistical model for UWB propagation channels that is valid for a frequency range from 3-10 GHz. It is based on measurements and simulations in the following environments: residential indoor, office indoor, built-up outdoor, industrial indoor, farm environments, and body area networks. The model is independent of the used antennas. It includes the frequency dependence of the pathloss, as well as several generalizations of the Saleh-Valenzuela model, like mixed Poisson times of arrival and delay dependent cluster decay constants. The model can thus be used for realistic performance assessment of UWB systems. It was accepted by the IEEE 802.15.4a working group (WG) as standard model for evaluation of UWB system proposals.