Abstract:
In this paper, a design method for wideband smart antennas with independently controllable beam width and sidelobe level in their patterns is demonstrated. Using a frequency domain frequency-invariant beam former, the phases of the complex weights can be adjusted to obtain a beam pattern that is invariant over the frequency range of interest, and a modified Chebyshev approach is used to calculate the amplitudes of these complex beam-forming weights, ensuring a relatively independent control of the beam width and the sidelobe level. The paper also briefly discusses different approaches for selecting the amplitudes leading to patterns with high directivities. Copyright 2006 by the American Geophysical Union.