Ultra-wideband miniaturized Wilkinson power divider based on rectangular multi-section resonators with neural network-based enhancement

IF 3.1 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI:10.1016/j.aeue.2026.156220

Hesam Ghitasy Sarabi , Gholamreza Karimi , Milad Mohammadi , Derek Abbott

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引用次数: 0

Abstract

In this study, a novel compact Wilkinson power divider (PD) with high fractional bandwidth (FBW) and excellent isolation is proposed, designed, and experimentally validated. The structure employs rectangular multi-section resonators, replacing conventional transmission lines, achieving a significant size reduction of over 76% compared to traditional designs. Additionally, the multilayer perceptron (MLP) neural network algorithm is used to optimize performance, resulting in a very small mean relative error (MRE) and mean absolute error (MAE), indicating the design's optimality. The fabricated PD eliminates 16 unwanted harmonics with suppression levels below −20 dB across a wide frequency range of 1.152.5 GHz. Fabricated on an RT Duroid 5880 substrate, the measured results show excellent agreement with simulations, validating the design's reliability. Compared to existing Wilkinson power dividers, the proposed solution offers several key advantages: a 76% reduction in size, a FBW of 96%, and the suppression of harmonics up to the 16th order, which significantly enhances signal integrity. Additionally, the design's simplicity and efficiency ensure lower manufacturing costs, making it suitable for high-performance, cost-effective wireless communication systems.

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基于矩形多段谐振腔的超宽带小型化威尔金森功率分配器

在本研究中，提出、设计并实验验证了一种具有高分数带宽（FBW）和优异隔离性能的新型紧凑型威尔金森功率分压器（PD）。该结构采用矩形多段谐振器，取代了传统的传输线，与传统设计相比，尺寸减小了76%以上。此外，采用多层感知器（MLP）神经网络算法对性能进行优化，得到非常小的平均相对误差（MRE）和平均绝对误差（MAE），表明设计的最优性。制作的PD在1.152.5 GHz的宽频率范围内消除了16个不需要的谐波，抑制水平低于- 20 dB。在RT Duroid 5880衬底上制作的测量结果与仿真结果非常吻合，验证了设计的可靠性。与现有的Wilkinson功率分压器相比，提出的解决方案具有几个关键优势：尺寸减小76%，FBW为96%，谐波抑制高达16阶，显著提高了信号完整性。此外，该设计的简单性和高效率确保了较低的制造成本，使其适用于高性能，具有成本效益的无线通信系统。

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.