文件名称:
90 branch-kine coupler with reconfigurable output power rations
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文件大小: 405kb
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上传时间: 2015-09-16
详细说明： This letter introduces a new 90 branch-line coupler with reconfigurable output power ratios (90 BC-ROPR). Unlike a conventional branch-line coupler structure, each arm of the proposed 90 BCROPR is defined by an asymmetrically coupled-line, and its characteristic impedance depends on the configuration of the coupled-line. The main problem that challenged this structure was unwanted loop resonance from the inner transmission lines which form a loop in a disconnected configuration. The proposed structure was designed to obtain 1:1 and 4:1 output power ratios at 3 GHz ...展开收缩
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