The Research of Spacial Beam Focusing in Near-field From a Plane Array based on Amplitude Weighting
In the near-field assumption, we present a method to realize the beam focusing by weighting the amplitude of the radiation of array element, and derive the formula for calculating the array element amplitude weighs with the two-dimensional array as simulation model. Suppose that the array focus on one point in the near-field, namely the focus function is a impulse function, we verified that it can realize the focus on one point in the near-field by the method of the amplitude weighting through the simulation, and we also simulate the focus method which are controlled by both the amplitude and phase, the experiment prove that we can get a great focus result and the directivity is good. The cost and complexity of beam generator are also reduced greatly by the control of array amplitude.
beam focusing amplitude weighting weights caculation
Changqing Luo Lanxiang Zhong
School of Information and Technology Northwest University Xian, China
国际会议
西安
英文
101-104
2011-05-13（万方平台首次上网日期，不代表论文的发表时间）