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A novel three-way microstrip line power divider structure using branch directional coupler is presented. The power divider is formed by two symmetrically placed branch directional couplers. The transmission characteristics of the power divider have been modeled and analyzed by using even/odd modes excitation method as well as transmission line theory. This paper also gives the design method on how...
In this paper, we present the design of an ultra-wideband Vivaldi array for a reconfigurable STW application utilizing an imaging radar system to view images through walls comprised of various types of materials. The proposed Vivaldi array, fed by four-section Wilkinson power dividers, demonstrates a frequency band of 1-10 GHz and acceptable radiation patterns over the entire operation band.
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