首页> 外文会议>Microwave Conference Proceedings (APMC), 2011 Asia-Pacific >Size-reduction of 3 dB microstrip forward-wave coupler using defected ground structure
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Size-reduction of 3 dB microstrip forward-wave coupler using defected ground structure

机译:使用有缺陷的地面结构减小3 dB微带正向波耦合器的尺寸

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摘要

A novel 3-dB directional coupler using defected ground structure is demonstrated. The input impedances of even- and odd-mode are perfectly matched and the phase difference between even- and odd-mode is also enhanced. Equivalent models are developed to predict the characteristic impedance and dispersion curve of the proposed structure. A tested sample is fabricated on the Duroid substrate. 3.4 dB coupling level of the proposed coupler is measured at 1.5 GHz. Compared with the microstrip forward coupler, the proposed coupler can achieve about 95 % size reduction.
机译:演示了一种使用缺陷接地结构的新型3 dB定向耦合器。偶数和奇数模式的输入阻抗完美匹配,并且偶数和奇数模式之间的相位差也得到增强。建立等效模型来预测所提出结构的特征阻抗和色散曲线。在Duroid基板上制作测试样品。建议的耦合器的3.4 dB耦合电平是在1.5 GHz下测得的。与微带正向耦合器相比,提出的耦合器可实现约95%的尺寸减小。

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