Shape and Weighting Optimization of a Subarray for an mm-Wave Phased Array Antenna

This paper discusses how to optimize the weighting of individual subarrays derive low sidelobe level (SLL) based on quadratic programming (QP) and QP parameters ensure that objective function is composed form, with actual number identical standard QP. Next, in order analyze SLL, a 24 × phased array antenna was compared 96 transmit–receive modules (TRMs) attached only subarray stage 576 TRMs all radiating elements without subarray. Optimized applied antennas subarray, Taylor The used optimized reduced by 83.3% which were elements. SLL half-power beamwidths (HPBWs) two practically narrow beam-scanning environment. Finally, an pattern (AP) mutual coupling between considered calculated verify weighting. Moreover, CST Microwave Studio (an EM full-wave simulation) compare results from AP calculation simulation. It confirmed above are largely indistinguishable. analysis found HPBW 3.6∘ −26.18 dB calculations boresight direction. When each 5∘ beam scanned at azimuth elevation, corresponding values 3.7∘ SLLs −22.70 −24.44 according calculations.