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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Design of a Compact Hybrid Branch Line Coupler with 2-D Implementation of Stepped Impedance Transmission Lines of High Impedance Ratio for Wide Range of Harmonic Suppression
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Design of a Compact Hybrid Branch Line Coupler with 2-D Implementation of Stepped Impedance Transmission Lines of High Impedance Ratio for Wide Range of Harmonic Suppression

机译：具有宽阻抗抑制范围的高阻抗比阶梯式阻抗传输线的二维实现的紧凑型混合支路耦合器设计

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摘要

In this paper stepped impedance transmission line (TL) structure is adopted by using proposed unorthodox technique to design a hybrid branch line coupler (HBLC) in micro-strip technology. In addition to achieving good fractional bandwidth of 30% and size reduction of 56%, the proposed technique ensures a high impedance ratio (M) over a wide range of electrical lengths of the high-Z low-Z (stepped impedance) sections. Maintaining high M ensures a good harmonic suppression of the proposed design up to 9f(0) (f(0) is the design frequency which is 1GHz for this work). Experimental verification of the proposed technique is demonstrated by designing an HBLC at 1GHz. Experimental and simulation results show excellent conformance.
机译：本文采用非常规技术，采用阶梯式阻抗传输线（TL）结构，设计了微带技术中的混合支路耦合器（HBLC）。除了实现30％的良好分数带宽和56％的尺寸减小之外，所提出的技术还确保了在高Z低Z（步进阻抗）部分的较长电长度范围内的高阻抗比（M）。保持较高的M值可确保对提出的设计进行良好的谐波抑制，直到9f（0）（f（0）是此工作的设计频率，为1GHz）。通过设计1GHz的HBLC证明了所提出技术的实验验证。实验和仿真结果显示出极好的一致性。

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