A broadband 16-element 2-D phased array based on quasi-Yagi antennas
Microwave Conference（2014）
Abstract
In this paper, a broadband 2-D phased array based on 16 identical planar quasi-Yagi elements is presented. Firstly, a modified quasi-Yagi antenna with wide beamwidth is developed. Then, by dividing the antenna “card” to independent elements, inserting a metal fence between front-back elements, which is as high as the antenna's ground plane, the mutual coupling is mitigated. After constructed with Wilkinson power divider and T/R modules, a fully functional active phased array is implemented. Measured radiation patterns show that the X-band array prototype can scan ±30 degree across the whole X-band from 8GHz to 12GHz.
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Key words
wilkinson power divider,radiation patterns,identical planar quasiyagi elements,frequency 8 ghz to 12 ghz,x-band array,yagi antenna arrays,t-r module,t/r modules,front-back elements,broadband antennas,microwave antenna arrays,x-band range,mutual coupling,antenna radiation patterns,active phased array,broadband 2-d phased array,x-band array prototype,metal fence,antennas radiation pattern,quasi-yagi antenna,planar quasiyagi antenna,antenna phased arrays,planar antenna arrays,active antenna arrays,mutual coupling mitigation,broadband 16-element 2d active phased array antenna,phased array,front-back element,antenna ground plane,power dividers
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