4.2.2.3 Array Pattern Characteristics
The conventional beampattern characteristics of interest include the 3.0-dB mainlobe width, sidelobe levels, grating lobes, and null locations. For a ULA, these characteristics vary with aperture length, inter-sensor spacing, signal frequency, as well as steer angle and taper function. To simplify the analysis, attention is restricted to a ULA steered in the boresight direction with a uniform taper (rectangular window). In this case, the normalized conventional beampattern is given by Eqn. (4.93).
(4.93)
The 3.0-dB mainlobe width, also referred to as the beamwidth, is defined as the angular separation between ...
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