Optimization of linear multielement antennas for selection combining by means of a Butler matrix in different MIMO environments
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Rights accessOpen Access
An optimized linear multielement antenna (MEA) is presented for selection combining schemes that improves the selection diversity gain and selection diversity capacity in medium and low multipath environments, with respect to the performance achieved with a simple uniform linear array (ULA) using omnidirectional antennas, while it performs equally as well as a ULA in highly scattered environments. An analytical investigation based on the analysis of the correlation coefficients, together with simulations and extensive measurements, have been carried out for different fading multiple-input multiple-output environments ranging from line of sight (LOS) to non-LOS. Two MEAs are compared: a simple ULA with omnidirectional antennas and a MEA combining a ULA and a Butler matrix. The measurement results show that the nature of the proposed MEA is such that it is adaptive to any propagation scenario by simultaneously taking advantage of beamforming gain and signal diversity gain.
CitationGrau, A.; Romeu, J.; Blanch, S.; Jofre, L; de Flaviis, F. Optimization of linear multielement antennas for selection combining by means of a Butler matrix in different MIMO environments. IEEE Transactions on Antennas and Propagation. 2006, vol. 54, núm.11, part 1, p. 3251-3264.
Showing items related by title, author, creator and subject.
Collado Gómez, Juan Carlos; Grau Besolí, Alfred; Flaviis, Franco de (Institute of Electrical and Electronics Engineers, 2005)
Open AccessThis paper shows the design of a dual-band Butler matrix aimed to cover the bands corresponding to the standards IEEE802.11a/b, with particular interest in WLAN systems, at the 2.4 GHz and 5 GHz bands. Measurements of the ...
Picher, Cristina; Anguera Pros, Jaume; Bujalance Jurado, Adrián; Andújar Linares, Aurora; Puente Baliarda, Carles (2013-01-01)
Restricted access - publisher's policyThe ground plane of a handset device plays an importants role in radiations process. As a consequence, thorugh a ground plane modification, it is possible to obtain a multiband performance while keeping small antenna dimensions.
Bujalance Jurado, Adrián; Picher, Cristina; Anguera Pros, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles (2013-08)
Restricted access - publisher's policyThe influence of handset components needs to be analyced in order to optimize the integration of the antenna into a handset device.