Refinement Method for Weighting Scheme of Fully Spatial Beamformer | Zendy

Chayanit Bunsanit | Zendy; Peerapong Uthansakul | Zendy; Monthippa Uthansakul | Zendy

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Refinement Method for Weighting Scheme of Fully Spatial Beamformer

Author(s) -

Chayanit Bunsanit,

Peerapong Uthansakul,

Monthippa Uthansakul

Publication year - 2012

Publication title -

international journal of antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.282

H-Index - 37

eISSN - 1687-5877

pISSN - 1687-5869

DOI - 10.1155/2012/359847

Subject(s) - weighting , realization (probability) , wideband , range (aeronautics) , computer science , beamforming , attenuation , electronic engineering , scheme (mathematics) , amplifier , algorithm , engineering , acoustics , telecommunications , mathematics , bandwidth (computing) , physics , optics , statistics , mathematical analysis , aerospace engineering

So far, a wideband spatial beamformer has been proposed. This kind of beamformer has a major contribution as its weighting coefficients are real valued in which they can be simply realized by attenuators or amplifiers. However, so far, the range of attenuation or amplification is relatively large which is not practical for hardware realization. Therefore, this paper proposes a concept to reduce the range of weighting coefficients hence, the hardware realization becomes practical. In this paper, a full prototype of wideband spatial beamformer is constructed to reflect the true beamforming performance of the proposed refinement method. Its radiation patterns obtained from simulation and measurement are compared. As a result, we can reduce the attenuation or amplification range while some radiation characteristic is remained.

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