Investigations into a wideband spatial beamformer employing a rectangular array of planar monopoles


Autoria(s): Uthansakul, M.; Bialkowski, M. E.
Contribuinte(s)

W. Ross Stone

Data(s)

01/01/2005

Resumo

This paper presents a rectangular array antenna with a suitable signal-processing algorithm that is able to steer the beam in azimuth over a wide frequency band. In the previous approach, which was reported in the literature, an inverse discrete Fourier transform technique was proposed for obtaining the signal weighting coefficients. This approach was demonstrated for large arrays in which the physical parameters of the antenna elements were not considered. In this paper, a modified signal-weighting algorithm that works for arbitrary-size arrays is described. Its validity is demonstrated in examples of moderate-size arrays with real antenna elements. It is shown that in some cases, the original beam-forming algorithm fails, while the new algorithm is able to form the desired radiation pattern over a wide frequency band. The performance of the new algorithm is assessed for two cases when the mutual coupling between array elements is both neglected and taken into account.

Identificador

http://espace.library.uq.edu.au/view/UQ:76872

Idioma(s)

eng

Publicador

Ieee-inst Electrical Electronics Engineers Inc

Palavras-Chave #Engineering, Electrical & Electronic #Arrays #Antenna Arrays #Adaptive Arrays #Beam Steering #Broadband Communication #Monopoles #Mutual Coupling #Smart Antennas #Land Mobile Radio Cellular Systems #Antennas #C1 #291701 Antenna Technology #700302 Telecommunications
Tipo

Journal Article