MBPAS

AcronymDefinition
MBPASMonthly Bulk Petroleum Accounting Summary
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[11-13] This article describes a low sidelobe and thinned MBPA design approach as a proposed solution to the previously mentioned problems.
Most importantly, each beam array of this four-beam array has its own radiating elements and power and phase distribution networks, thus avoiding the previously mentioned IM problem of the MBPA with shared active elements and modules.
Finally, replacing the I([r.sub.n]) of Equation 1 (a -25 dB Taylor distribution for the example case) with a -30 or -40 dB distribution further reduces the sidelobe level to lower than -21 dB for this thinned MBPA.