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A multilevel subarray RF modularization technique is presented to construct a hierarchical beamforming network (BFN) for phased array of antennas. In contrast to the conventional BFN architecture, which feeds each antenna element by using individual set of RF devices, the restructured RF modules may simplify the BFN architecture. They may dramatically reduce the cost without significantly sacrificing...
This paper presents a hierarchical MCU (micro-control unit) architecture to reduce the number of wires required to control the RF devices of large phased array of antennas. In addition to cost reduction, the decrease of control wires may also reduce the electromagnetic interferences to the antenna radiation that are caused by the presence of wires. In particular, Genetic algorithm (GA) was also implemented...
A hierarchical beamforming network (BFN) architecture to feed phased arrays of antennas for directional beam radiation is developed by using a subarray modularization technique. Instead of feeding the antenna elements by using individual sets of RF devices in a one-to-one correspondence, the RF devices are sub-grouped for modularization with each module formed by very few elements to form multi-level...
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