Print Email Facebook Twitter On the Relation Between Beam Coupling and Feed Coupling in Wideband Antenna Arrays Title On the Relation Between Beam Coupling and Feed Coupling in Wideband Antenna Arrays Author Ozzola, R. (TU Delft Tera-Hertz Sensing) Cavallo, D. (TU Delft Tera-Hertz Sensing) Neto, A. (TU Delft Tera-Hertz Sensing) Date 2022 Abstract We present a study on beam coupling in radiating structures that support multiple simultaneous beams. The formation of multiple beams is relevant in modern wireless communication applications when diverse data streams can be sent from a single transmitter to users located in different directions. General expressions are provided that relate the coupling between radiated beams to the associated current distributions on the radiating aperture. When expanding the currents in terms of basis functions, the beam coupling can be also written in terms of coupling contributions due to each pair of basis functions. The analysis is applied to antenna arrays with different levels of mutual coupling between the array elements. More specifically, arrays of resonant elements, characterized by very low mutual coupling, are compared with arrays of connected elements, which are strongly coupled. We show that, even for a very high level of mutual coupling between individual array elements, it is possible to obtain orthogonal beams if the total current distributions associated with the beams are uncoupled. Subject Antenna arraysbeam coupling factormultiple beamsmutual couplingwideband arrays To reference this document use: http://resolver.tudelft.nl/uuid:79004561-5831-42b4-af1a-41f0582befaa DOI https://doi.org/10.1109/TAP.2021.3090536 ISSN 0018-926X Source IEEE Transactions on Antennas and Propagation, 70 (1), 260-267 Part of collection Institutional Repository Document type journal article Rights © 2022 R. Ozzola, D. Cavallo, A. Neto Files PDF On_the_Relation_Between_B ... Arrays.pdf 2.63 MB Close viewer /islandora/object/uuid:79004561-5831-42b4-af1a-41f0582befaa/datastream/OBJ/view