A highly flexible dual-band directional coupler with arbitrary phase difference and power division ratio

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-02-11 DOI:10.1016/j.aeue.2025.155719

Yuan Cao, Xiang Chao Jin, Peng He Xu

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引用次数: 0

Abstract

In this paper, a highly flexible dual-frequency directional coupler with arbitrary phase difference and power division ratio is designed. The coupler consists of two transmission lines, two C-type coupling lines and two sets of external stubs, which not only can realize arbitrary phase difference and power division ratio in dual-frequency applications, but also has the advantages of compact structure, flexibility and strong coupling. In addition, the structure is a simple and straightforward single-plane structure, which also does not require the use of any lumped element, thus greatly reducing the design cost and providing a high degree of stability and practicality. Based on the odd–even mode analysis method and the equivalent substitution method, explicit design equations for the structural parameters are given, and the effects of different parameters on the coupler performance are analyzed in detail. In order to verify the advancement of the proposed structure, prototypes of four different cases are fabricated for validation. The measured results are in good agreement with the simulation results, verifying the correctness of the theoretical analysis and the advancement of the structure.

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具有任意相位差和功率分配比的高度灵活的双频定向耦合器

本文设计了一种具有任意相位差和功率分配比的高柔性双频定向耦合器。该耦合器由两根传输线、两根c型耦合线和两组外部存根组成，不仅可以在双频应用中实现任意相位差和功率分比，而且具有结构紧凑、灵活、耦合强等优点。此外，该结构为简单直接的单平面结构，也不需要使用任何集总元件，从而大大降低了设计成本，并提供了高度的稳定性和实用性。基于奇偶模态分析方法和等效替换法，给出了结构参数的显式设计方程，并详细分析了不同参数对耦合器性能的影响。为了验证所提出的结构的先进性，制作了四种不同情况的原型进行验证。实测结果与仿真结果吻合较好，验证了理论分析的正确性和结构的先进性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.