| 一种新型双层微带定向耦合器 |
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| 引用本文： | 冉涛,傅光,范一鹏. 一种新型双层微带定向耦合器[J]. 电子科技, 2011, 24(1): 118-120 |
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| 作者姓名： | 冉涛 傅光 范一鹏 |
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| 作者单位： | (西安电子科技大学 天线与微波技术国家重点实验室,陕西 西安 710071) |
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| 摘 要： | 提出了一种新型双层微带结构的3 dB定向耦合器.此耦合器由两层带有耦合缝隙和寄生单元的介质板背对背放置.通过增加耦合面积和引入寄生单元补偿电容起到了均衡奇、偶模相速提高了耦合度,实现了宽频的3 dB紧耦合.通过优化设计,在频带范围内,此双层微带定向耦合器的定向性优于普通的耦合微带线定向耦合器.设计结果在450～860 ...
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| 关 键 词： | 双层微带 定向耦合器 耦合系数 |
A Novel Dual-Layer Microstrip Directional Coupler |
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| Ran Tao,Fu Guang,Fan Yipeng. A Novel Dual-Layer Microstrip Directional Coupler[J]. Electronic Science and Technology, 2011, 24(1): 118-120 |
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| Authors: | Ran Tao Fu Guang Fan Yipeng |
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| Affiliation: | (National Laboratory of Antennas and Microwave Technology,Xidian University,Xi'an 710071,China) |
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| Abstract: | A novel dual-layer microstrip directional coupler is presented.The directional coupler consists of two-layer,back-to-back substrates with a couple aperture.By increasing the coupling proportion and introducing parasitical part to compensate the capacitance and poise the odd mode and even mode,it realizes tight coupling at a wide band.The directivities of the coupler is better than that of the general microstrip ones.The insertion losses,return losses and isolation are better than 0.5 dB,-23 dB and 20 dB ove... |
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| Keywords: | dual-layer microstrip directional coupler coupling coefficient |
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