Title :
Beamspace Adaptive Beamforming for Broadband Planar Arrays
Author :
Liu, Wei ; Wu, Renbiao ; Langley, Richard
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ.
Abstract :
A beamspace adaptive planar array for broadband beamforming based on the frequency invariant beamforming technique is proposed. The relationship between the dimension of the two-dimensional (2-D) prototype filter for the beam design and the number of independent beams is discussed and an arrangement of the desired frequency invariant responses for beamspace processing is provided, which guarantees the linear independence of the beams. Simulation results show the effectiveness of the method with increased convergence speed and a resultant frequency invariant beam pattern
Keywords :
array signal processing; broadband antennas; filtering theory; matrix algebra; planar antenna arrays; beamspace adaptive beamforming; broadband planar arrays; frequency invariant beam pattern; two-dimensional prototype filter; Array signal processing; Computational complexity; Convergence; Discrete Fourier transforms; Finite impulse response filter; Frequency; Planar arrays; Prototypes; Sensor systems; Two dimensional displays;
Conference_Titel :
Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007. IWAT '07. International Workshop on
Conference_Location :
Cambridge
Print_ISBN :
1-4244-1088-6
Electronic_ISBN :
1-4244-1088-6
DOI :
10.1109/IWAT.2007.370137
